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. 2025 Apr 30;3(5):qxaf092. doi: 10.1093/haschl/qxaf092

Commercial price variation for common imaging studies

Alexander P Philips 1,2, Christopher Whaley 3,4,✉,2
PMCID: PMC12097484  PMID: 40406496

Abstract

Introduction

Commercial insurance payment rates for imaging studies have significant price variation, yet understanding this variation has been limited by lack of transparency and data limitations.

Methods

Using newly available Transparency-in-Coverage insurer-posted data on negotiated rates, we analyzed price variation for the 2023 contract year across four major commercial insurers (Blue Cross Blue Shield, United, Cigna, and Aetna) for 30 imaging studies. Our analysis encompassed 12.7 million professional fee price points and 239 969 facility fee price points.

Results

Our analysis revealed substantial variation in reimbursement rates. Key findings include greater variation in facility fees compared to professional fees, with facility coefficients of variation often 3 to 6 times higher than professional components. There was also substantial and inconsistent variation by payer. Geographic analysis revealed significant state-level variation, particularly in facility fees.

Conclusion

These findings highlight the complex interplay of market dynamics and negotiating strategies in determining healthcare prices, with implications for policymakers, purchasers, and clinicians guiding patient care decisions.

Keywords: price variation, price transparency, commercial insurance, radiology

Introduction

Clinicians, patients, and purchasers face large variation in rates negotiated by commercial insurers, which provide health insurance coverage for approximately half the country. Unlike Medicare rates, commercial rates are established through a negotiation process that is not transparent, resulting in prices that are highly variable and opaque.1,2 Further, prices can vary depending on whether the contract is at the facility or physician level, with prices differing even within the same insurer's portfolio of plans.3 Lack of transparency limits the ability of regulators to monitor prices and employers, patients, and purchasers to impose market discipline on prices. The private market lacked meaningful price transparency for patients and purchasers until the recent implementation of Hospital Price Transparency and Transparency in Coverage (TiC) rules, which respectively require hospitals to post prices for 300 “shoppable” services and insurers to post their full set of negotiated rates. However, initial efforts to analyze the TiC data have been limited, largely due to data size and complexity. Price variation for common imaging studies has not been widely examined for large commercial payers since the implementation of TiC rules and is the objective of this study.

While existing studies show patients are unlikely to use price transparency data,4-6 these data can inform other decisions and policies. Clinicians play a key role in advising patients on care decisions and can benefit from understanding the wide range of prices offered by insurers to help them guide patients in navigating cost considerations and selecting affordable care options.7 Both purchasers and policymakers may also use price information to appropriately design initiatives that ensure health care affordability.6,8 Regulators can also use these data to monitor health care markets and design policies that limit the price consequences of provider concentration.9,10

To help fill this gap and inform these policies, in this study, we used TiC data to examine variation in commercial insurance payment rates for common imaging studies. Relative to other healthcare services, imaging studies are relatively homogenous.11,12 Thus, observed differences in prices are likely to reflect differences in negotiation leverage between both providers and payers. We also separately focused on price variation for professional fees, the amount paid to the radiologist to interpret the imaging study, and facility fees, the amount paid to the facility in which the imaging study occurs. Relative to other approaches which have identified substantial price variation in imaging studies,13-16 a key advantage of using the TiC data to examine these questions is the ability to specifically identify insurers. Further, TiC data allows us to comprehensively examine how insurer-specific factors translate into observed price differences for imaging studies—an analysis not possible with hospital transparency data, which are limited by incomplete reporting and focus only on hospital-based imaging prices, when many imaging services are performed in nonhospital settings.

Data and methods

We examined TiC price data collected by a third-party vendor, ClarifyHealth, for common imaging studies from four large national insurers (Blue Cross Blue Shield [BCBS], United, Cigna, and Aetna), which collectively constitute 78% market share.17 Unlike the majority of prior work which utilizes hospital price data, we leverage TiC data's unique granularity and broader provider coverage to directly compare prices across all care settings (including hospitals) for major named insurers. Despite being released in July 2021, these data have seen limited use due to their structural complexity. However, recent research confirms high concordance between TiC data, hospital pricing data, and Marketscan commercial claims.18,19 Challenges with TiC data include “zombie rates” for inactive providers and redundant pricing files, resulting in over 1 trillion monthly price observations and 1 petabyte of data. To address these data challenge, Clarify links TiC data to Medicare fee-for-service and commercial insurance claims, covering about 270 million people.20 We analyzed commercial prices (excluding Medicare Advantage and Medicaid Managed Care) for providers with billed claims during the 2023 contract year for 30 common imaging studies. These data were downloaded in December 2024, but reflect the prior year's negotiated rates. Imaging studies were broadly categorized as either CT scan, mammogram, MRI, ultrasound, or X-ray studies. Prices reflect the “allowed amount,” which is the amount negotiated between an insurer and provider for a given Current Procedural Terminology (CPT) code (distinct from the “chargemaster” rate), and includes both payments from the insurer and patient cost-sharing responsibilities. We used weighted average negotiated prices across all plan types (PPO, HMO) as calculated by ClarifyHealth. This means if an insurer has enrollees in both PPO and HMO plans with different pricing structures, our analysis incorporates a weighted average of these prices.

For professional fee prices, our sample had approximately 12.7 million price points and 35 269 unique physicians. For facility fee prices, our sample included approximately 239 969 price points and 5057 facilities. We analyzed distributional differences in prices (mean, median, and percentiles), coefficients of variation, and price indices by payer. To construct price indices, we define procedure-specific volume weights for CPT codes (see Appendix 1), consistent with approaches used in previous literature.21,22

Several limitations should be noted in this analysis. First, we describe negotiated rates from four major commercial insurers, potentially missing important variation from smaller regional insurers and self-insured employers. Second, given its recency, these data are cross-sectional for the 2023 contract year and may not capture seasonal variations, longitudinal trends, or recent market changes. Third, we cannot track how much of the difference in payments translates to differences in physician compensation. Fourth, the price data does not account for quality differences, patient outcomes, or specific facility characteristics that might justify price variations. Fifth, we cannot stratify our price analysis by site-of-service principally due to differential reporting across payers.

Brown University Institutional Review Board deemed this cross-sectional study exempt from ethics review and informed consent because it was not human participant research. Data analysis was performed using R version 4.4.1.

Results

Across all imaging studies examined, professional pricing has less price variation than facility pricing (Table 1). Facility coefficients of variation are often 3 to 6 times higher than their professional components. This difference is particularly pronounced in X-ray studies, where facility fees can vary by a factor of 6 or more. Advanced imaging modalities (CT and MRI) demonstrate more consistent pricing patterns with lower coefficients of variation in their facility fees (generally 1.2 to 2.0) compared to basic imaging like X-rays and ultrasounds.

Table 1.

Average prices and price variation for 30 common imaging studies.

Procedure category CPT code description CPT code Professional fees Facility fees
Mean (SD) Median (IQR) Coef of variation Mean (SD) Median (IQR) Coef of variation
CT scan Head/brain scan without contrast 70 450 190 (164) 144 (100–225) 0.86 574 (1148) 292 (178–670) 2
Chest scan without contrast 71 250 244 (205) 183 (129–288) 0.84 624 (1209) 334 (205–704) 1.94
Chest scan with contrast 71 260 303 (261) 226 (162–345) 0.86 705 (1096) 468 (280–832) 1.56
Chest blood vessel scan (angiography) 71 275 434 (373) 319 (237–480) 0.86 854 (1162) 569 (356–1084) 1.36
Abdomen and pelvis scan without contrast 74 176 283 (224) 212 (162–324) 0.79 785 (1330) 496 (282–914) 1.69
Abdomen and pelvis scan with contrast 74 177 445 (382) 336 (245–508) 0.86 1042 (1329) 730 (458–1245) 1.28
Mammogram 3D breast imaging (tomosynthesis), both breasts 77 063 69 (47) 55 (42–76) 0.68 237 (1573) 63 (40–109) 6.63
Diagnostic mammogram with computer analysis, one breast 77 065 160 (115) 127 (96–179) 0.72 374 (1415) 195 (124–307) 3.79
Diagnostic mammogram with computer analysis, both breasts 77 066 202 (146) 159 (121–227) 0.72 435 (1453) 236 (150–371) 3.34
Screening mammogram with computer analysis, both breasts 77 067 167 (125) 131 (98–184) 0.75 361 (1387) 192 (123–305) 3.84
MRI scan Brain MRI with and without contrast 70 553 619 (561) 447 (299–697) 0.91 1210 (1557) 792 (515–1487) 1.29
Lower back (lumbar spine) MRI without contrast 72 148 380 (330) 278 (191–451) 0.87 920 (1283) 570 (348–1107) 1.4
Lower extremity joint MRI without contrast 73 721 375 (306) 283 (196–442) 0.82 940 (1356) 582 (367–1126) 1.44
Ultrasound Head and neck ultrasound 76 536 139 (113) 108 (78–153) 0.82 341 (1342) 167 (111–286) 3.94
Complete breast ultrasound 76 641 128 (90) 101 (78–147) 0.7 391 (1580) 195 (120–304) 4.04
Limited breast ultrasound 76 642 115 (83) 89 (68–132) 0.73 352 (1601) 158 (90–260) 4.55
Complete abdominal ultrasound 76 700 156 (125) 120 (92–172) 0.8 348 (1311) 176 (116–301) 3.76
Limited abdominal ultrasound 76 705 117 (92) 90 (70–129) 0.79 294 (1208) 141 (91–266) 4.11
Transvaginal ultrasound (nonobstetric) 76 830 145 (121) 112 (83–160) 0.84 336 (1314) 174 (110–304) 3.91
Complete pelvic ultrasound 76 856 138 (114) 106 (79–151) 0.83 312 (1124) 165 (105–292) 3.6
X-ray Chest X-ray, single view 71 045 32 (28) 24 (17–35) 0.87 160 (1029) 48 (25–119) 6.41
Chest X-ray, two views 71 046 43 (36) 32 (25–50) 0.83 197 (1253) 66 (36–142) 6.36
Lower spine X-ray, 2–3 views 72 100 49 (44) 37 (28–54) 0.9 217 (1584) 66 (40–153) 7.31
Shoulder X-ray 73 030 42 (35) 32 (24–47) 0.84 162 (1044) 56 (36–120) 6.44
Hand X-ray 73 130 43 (35) 33 (24–49) 0.81 211 (1332) 61 (38–123) 6.31
Knee X-ray, three views 73 562 48 (41) 37 (27–55) 0.85 204 (1192) 75 (38–140) 5.85
Ankle X-ray 73 610 44 (40) 33 (25–49) 0.92 193 (1257) 61 (38–123) 6.53
Foot X-ray 73 630 42 (36) 32 (24–46) 0.86 153 (949) 58 (36–119) 6.21
Abdominal X-ray, single view 74 018 38 (31) 29 (22–42) 0.82 207 (1337) 61 (34–129) 6.45
Bone density scan (DXA), spine/hips 77 080 70 (63) 53 (32–86) 0.9 299 (1455) 105 (54–226) 4.86

These data represent TiC data from ClarifyHealth, which aggregates price data for the 2023 contract year. Prices reflect the “allowed amount,” which is the amount negotiated between an insurer and provider for a given Current Procedural Terminology (CPT) code (distinct from the “chargemaster rate”). See Table 3 for this table disaggregated by commercial payer.

Source: Author's analysis.

Volume-weighted price indices by payer (Table 2) show BCBS consistently has higher payments across all imaging studies, with facility prices ranging from 31% to 85% above the market average. In contrast, Cigna and Aetna generally have lower-than-average prices across most imaging studies. United Healthcare presents a mixed pricing pattern, with professional fees close to the market average but notably lower facility fees, particularly for mammograms, at just 0.25 times the market average. Within service categories, the most extreme price variations appear in facility fees for X-rays, where BCBS charges 1.85 times the market average while Aetna charges only 0.32 times the market average—a 6-fold difference.

Table 2.

Professional and facility price indices by payer for major imaging categories.

Payer Professional Price Indices
CT scan MRI scan Mammogram Ultrasound X-ray Overall
All Four Payers 1 1 1 1 1 1
Aetna 0.76 0.68 0.78 0.71 0.74 0.75
Blue Cross Blue Shield 1.12 1.13 1.08 1.11 1.1 1.11
Cigna 0.71 0.82 0.78 0.76 0.72 0.75
United Healthcare 0.96 0.92 1 1 0.99 0.97
Payer Facility price indices
CT scan MRI scan Mammogram Ultrasound X-ray Overall
All Four Payers 1 1 1 1 1 1
Aetna 0.83 0.81 0.54 0.46 0.32 0.67
Blue Cross Blue Shield 1.31 1.35 1.6 1.74 1.85 1.48
Cigna 0.71 0.68 0.68 0.7 0.36 0.65
United Healthcare 0.61 0.59 0.25 0.51 0.79 0.55

The methodology for calculating these volume-weighted price indices are shown in Appendix 1.

Source: Author's analysis.

Disaggregated analysis by both service and payer (Table 3) shows substantial price variation. The professional interquartile ratios were lowest for Cigna's CT Abdomen/Pelvis without contrast [CPT 74 176] (25th percentile: $137 to 75th percentile: $219) and highest for BCBS's DXA Bone Density Scan [CPT 77 080] (25th percentile: $34 to 75th percentile: $104). The facility interquartile ratios were lowest for the majority of UnitedHealthcare's imaging studies (with 17 of 30 studies showing an interquartile ratio of exactly 1) and highest for Aetna's CT Head without contrast [CPT 70 450] (25th percentile: $125 to 75th percentile: $700).

Table 3.

Average prices and price variation for 30 common imaging studies by payer

Procedure category Code description Service code Payer Unique price points Unique providers Professional fees Facility fees
Mean (SD) Median (IQR) Ratio of 75th to 25th %tiles Coef of variation Mean (SD) Median (IQR) Ratio of 75th to 25th %tiles Coef of variation
CT scan Head/Brain scan without contrast 70 450 All Four Payers 520 237 26 387 190 (164) 144 (100–225) 2.25 0.86 574 (1148) 292 (178–670) 3.76 2
Aetna 62 618 13 794 136 (108) 103 (71–164) 2.31 0.79 506 (552) 257 (125–700) 5.61 1.09
BlueCross BlueShield 297 519 24 212 217 (177) 162 (108–266) 2.46 0.82 773 (1771) 462 (238–777) 3.27 2.29
Cigna 56 008 18 599 141 (74) 129 (89–175) 1.96 0.53 364 (318) 238 (170–501) 2.95 0.87
UnitedHealthcare 104 092 19 657 174 (169) 141 (105–200) 1.92 0.97 273 (59) 281 (281–281) 1 0.22
Chest scan without contrast 71 250 All Four Payers 513 670 26 757 244 (205) 183 (129–288) 2.24 0.84 624 (1209) 334 (205–704) 3.44 1.94
Aetna 63 132 14 021 166 (126) 126 (91–186) 2.04 0.76 537 (551) 303 (156–742) 4.77 1.03
BlueCross BlueShield 295 558 24 560 278 (236) 206 (141–316) 2.23 0.85 828 (1823) 491 (262–795) 3.04 2.2
Cigna 56 070 18 763 184 (94) 169 (117–227) 1.94 0.51 435 (307) 304 (255–628) 2.46 0.7
UnitedHealthcare 98 910 19 309 227 (165) 187 (126–270) 2.15 0.73 297 (67) 313 (313–313) 1 0.23
Chest scan with contrast 71 260 All Four Payers 517 772 27 096 303 (261) 226 (162–345) 2.13 0.86 705 (1096) 468 (280–832) 2.97 1.56
Aetna 62 965 14 079 210 (175) 159 (114–233) 2.04 0.83 569 (532) 372 (201–762) 3.79 0.94
BlueCross BlueShield 299 007 24 945 343 (304) 254 (181–381) 2.11 0.89 980 (1675) 660 (409–1047) 2.56 1.71
Cigna 56 501 18 996 222 (115) 205 (144–273) 1.9 0.52 497 (315) 375 (285–707) 2.48 0.63
UnitedHealthcare 99 299 19 626 286 (183) 235 (170–344) 2.03 0.64 450 (111) 468 (468–468) 1 0.25
Chest blood vessel scan (angiography) 71 275 All Four Payers 493 663 25 502 434 (373) 319 (237–480) 2.03 0.86 854 (1162) 569 (356–1084) 3.05 1.36
Aetna 59 886 13 330 283 (209) 214 (160–310) 1.94 0.74 711 (632) 494 (275–990) 3.61 0.89
BlueCross BlueShield 285 981 23 486 488 (433) 349 (260–514) 1.98 0.89 1086 (1643) 725 (461–1236) 2.68 1.51
Cigna 53 735 17 829 335 (171) 320 (217–404) 1.87 0.51 714 (336) 633 (542–857) 1.58 0.47
UnitedHealthcare 94 061 18 412 425 (292) 350 (247–509) 2.06 0.69 396 (181) 375 (272–500) 1.83 0.46
Abdomen and pelvis scan without contrast 74 176 All Four Payers 501 607 26 344 283 (224) 212 (162–324) 2 0.79 785 (1330) 496 (282–914) 3.24 1.69
Aetna 60 638 13 657 240 (177) 170 (147–266) 1.81 0.74 629 (617) 399 (226–833) 3.68 0.98
BlueCross BlueShield 293 786 24 279 316 (257) 239 (175–347) 1.98 0.81 1038 (1964) 620 (388–1066) 2.75 1.89
Cigna 52 078 17 796 194 (98) 170 (137–219) 1.59 0.51 531 (314) 409 (350–707) 2.02 0.59
UnitedHealthcare 95 105 18 668 260 (158) 217 (159–314) 1.98 0.61 502 (262) 462 (351–599) 1.71 0.52
Abdomen and pelvis scan with contrast 74 177 All Four Payers 537 560 28 433 445 (382) 336 (245–508) 2.07 0.86 1042 (1329) 730 (458–1245) 2.72 1.28
Aetna 64 600 14 601 367 (253) 267 (227–415) 1.83 0.69 841 (704) 631 (364–1129) 3.11 0.84
BlueCross BlueShield 314 438 26 241 489 (425) 357 (264–538) 2.03 0.87 1335 (1860) 913 (555–1557) 2.8 1.39
Cigna 55 394 19 227 297 (161) 265 (201–346) 1.72 0.54 767 (346) 707 (591–1144) 1.94 0.45
UnitedHealthcare 103 128 20 498 439 (368) 363 (238–535) 2.25 0.84 750 (418) 654 (443–978) 2.21 0.56
Mammogram 3D breast imaging (tomosynthesis), both breasts 77 063 All Four Payers 268 059 16 178 69 (47) 55 (42–76) 1.8 0.68 237 (1573) 63 (40–109) 2.72 6.63
Aetna 31 570 7614 54 (38) 39 (34–56) 1.67 0.71 83 (65) 61 (40–105) 2.66 0.79
BlueCross BlueShield 155 123 14 798 75 (53) 59 (47–82) 1.74 0.71 449 (2393) 69 (45–124) 2.74 5.33
Cigna 27 509 10 707 53 (24) 46 (38–62) 1.62 0.46 110 (60) 100 (57–117) 2.06 0.54
UnitedHealthcare 53 857 11 644 68 (35) 59 (43–79) 1.83 0.51 31 (22) 26 (24–26) 1.1 0.7
Diagnostic mammogram with computer analysis, one breast 77 065 All Four Payers 193 578 12 334 160 (115) 127 (96–179) 1.87 0.72 374 (1415) 195 (124–307) 2.48 3.79
Aetna 23 818 5897 127 (81) 96 (85–135) 1.6 0.64 221 (155) 175 (107–280) 2.62 0.7
BlueCross BlueShield 110 838 11 306 171 (134) 131 (100–183) 1.83 0.79 554 (2052) 215 (156–337) 2.16 3.71
Cigna 19 486 7881 128 (62) 112 (89–146) 1.65 0.48 287 (152) 241 (176–327) 1.86 0.53
UnitedHealthcare 39 436 8860 163 (83) 141 (103–192) 1.85 0.51 108 (33) 96 (87–113) 1.29 0.31
Diagnostic mammogram with computer analysis, both breasts 77 066 All Four Payers 192 184 12 254 202 (146) 159 (121–227) 1.88 0.72 435 (1453) 236 (150–371) 2.47 3.34
Aetna 23 461 5815 161 (103) 123 (107–174) 1.62 0.64 277 (196) 208 (136–344) 2.53 0.71
BlueCross BlueShield 110 359 11 223 216 (170) 165 (124–232) 1.87 0.79 626 (2113) 263 (184–432) 2.35 3.38
Cigna 19 379 7863 161 (78) 141 (113–184) 1.63 0.48 374 (191) 328 (251–425) 1.69 0.51
UnitedHealthcare 38 985 8804 207 (107) 177 (131–242) 1.84 0.52 132 (38) 123 (112–129) 1.15 0.28
Screening mammogram with computer analysis, both breasts 77 067 All Four Payers 281 714 16 805 167 (125) 131 (98–184) 1.88 0.75 361 (1387) 192 (123–305) 2.48 3.84
Aetna 33 977 8196 130 (85) 98 (86–138) 1.6 0.66 222 (163) 161 (108–278) 2.57 0.73
BlueCross BlueShield 163 670 15 345 181 (146) 136 (101–188) 1.85 0.81 534 (2035) 221 (153–341) 2.23 3.81
Cigna 28 035 10 908 130 (62) 114 (91–149) 1.64 0.48 274 (142) 247 (148–303) 2.04 0.52
UnitedHealthcare 56 032 12 070 167 (87) 144 (105–196) 1.86 0.52 111 (32) 101 (92–115) 1.25 0.29
MRI scan Brain MRI with and without contrast 70 553 All Four Payers 380 432 19 448 619 (561) 447 (299–697) 2.33 0.91 1210 (1557) 792 (515–1487) 2.89 1.29
Aetna 44 339 9962 390 (370) 268 (213–427) 2 0.95 930 (831) 652 (353–1321) 3.74 0.89
BlueCross BlueShield 218 204 17 814 695 (645) 498 (333–750) 2.25 0.93 1693 (2238) 1107 (716–1874) 2.62 1.32
Cigna 41 433 13 694 519 (325) 433 (275–700) 2.54 0.63 843 (402) 720 (616–957) 1.55 0.48
UnitedHealthcare 76 456 14 420 590 (434) 469 (329–692) 2.1 0.74 803 (249) 792 (792–792) 1 0.31
Lower back (lumbar spine) MRI without contrast 72 148 All Four Payers 383 475 19 554 380 (330) 278 (191–451) 2.36 0.87 920 (1283) 570 (348–1107) 3.18 1.4
Aetna 45 114 10 066 273 (233) 220 (162–301) 1.86 0.85 792 (765) 479 (237–1128) 4.77 0.97
BlueCross BlueShield 222 328 17 951 429 (381) 315 (201–523) 2.6 0.89 1187 (1832) 797 (474–1223) 2.58 1.54
Cigna 41 054 13 697 304 (176) 265 (165–401) 2.43 0.58 612 (394) 446 (368–888) 2.41 0.64
UnitedHealthcare 74 979 14 260 340 (241) 275 (192–400) 2.08 0.71 531 (148) 531 (531–531) 1 0.28
Lower extremity joint MRI without contrast 73 721 All Four Payers 268 579 13650 375 (306) 283 (196–442) 2.26 0.82 940 (1356) 582 (367–1126) 3.07 1.44
Aetna 32 573 7248 265 (194) 219 (167–299) 1.79 0.73 796 (764) 494 (246–1127) 4.58 0.96
BlueCross BlueShield 156 605 12 599 423 (354) 321 (211–516) 2.45 0.84 1256 (1949) 833 (503–1272) 2.53 1.55
Cigna 27 795 9393 299 (167) 267 (175–384) 2.2 0.56 635 (409) 457 (391–925) 2.37 0.64
UnitedHealthcare 51 606 9941 340 (219) 270 (198–411) 2.07 0.64 430 (163) 393 (393–393) 1 0.38
Ultrasound Head and neck ultrasound 76 536 All Four Payers 442 672 23 783 139 (113) 108 (78–153) 1.96 0.82 341 (1342) 167 (111–286) 2.57 3.94
Aetna 54 690 12 232 96 (79) 68 (58–101) 1.73 0.82 157 (116) 129 (81–200) 2.47 0.74
BlueCross BlueShield 252 150 21 750 153 (133) 114 (88–158) 1.81 0.87 633 (2121) 279 (193–437) 2.27 3.35
Cigna 47 783 16 584 107 (55) 92 (72–127) 1.75 0.52 258 (119) 227 (207–297) 1.43 0.46
UnitedHealthcare 88 049 17 347 143 (79) 124 (87–171) 1.97 0.55 147 (84) 117 (117–117) 1 0.57
Complete breast ultrasound 76 641 All Four Payers 145 902 9035 128 (90) 101 (78–147) 1.89 0.7 391 (1580) 195 (120–304) 2.53 4.04
Aetna 19 969 4602 105 (91) 80 (63–108) 1.71 0.86 193 (157) 147 (94–238) 2.52 0.81
BlueCross BlueShield 83 810 8180 139 (97) 108 (88–156) 1.78 0.7 649 (2381) 242 (175–366) 2.1 3.67
Cigna 14 991 5964 100 (45) 88 (72–117) 1.61 0.45 279 (138) 233 (192–474) 2.46 0.5
UnitedHealthcare 27 132 6232 124 (74) 101 (73–148) 2.04 0.59 236 (98) 222 (159–297) 1.87 0.42
Limited breast ultrasound 76 642 All Four Payers 254 920 14 836 115 (83) 89 (68–132) 1.95 0.73 352 (1601) 158 (90–260) 2.88 4.55
Aetna 30 587 7243 90 (71) 66 (55–92) 1.67 0.79 152 (112) 115 (73–194) 2.67 0.74
BlueCross BlueShield 149 549 13 642 126 (93) 97 (73–136) 1.86 0.74 586 (2346) 204 (140–337) 2.41 4
Cigna 26 214 9896 86 (41) 74 (60–100) 1.65 0.48 199 (103) 182 (132–227) 1.72 0.52
UnitedHealthcare 48 570 10 553 112 (67) 95 (65–132) 2.03 0.6 204 (89) 192 (144–246) 1.71 0.44
Complete abdominal ultrasound 76 700 All Four Payers 455 315 23 522 156 (125) 120 (92–172) 1.88 0.8 348 (1311) 176 (116–301) 2.6 3.76
Aetna 56 326 12 390 104 (82) 76 (62–114) 1.84 0.79 168 (140) 124 (77–218) 2.81 0.83
BlueCross BlueShield 262 205 21 583 175 (143) 128 (100–184) 1.84 0.82 613 (2031) 281 (196–448) 2.29 3.31
Cigna 50 275 16 691 119 (57) 105 (81–137) 1.7 0.48 279 (136) 239 (217–313) 1.44 0.49
UnitedHealthcare 86 509 16 880 152 (104) 125 (87–186) 2.13 0.69 173 (70) 154 (154–154) 1 0.41
Limited abdominal ultrasound 76 705 All Four Payers 524 090 27 387 117 (92) 90 (70–129) 1.86 0.79 294 (1208) 141 (91–266) 2.93 4.11
Aetna 64 030 14 162 80 (62) 58 (48–89) 1.85 0.77 128 (115) 95 (59–165) 2.79 0.9
BlueCross BlueShield 301 181 25 155 131 (107) 94 (75–139) 1.86 0.82 529 (1858) 260 (161–402) 2.5 3.51
Cigna 57 369 19 253 88 (44) 78 (59–102) 1.72 0.5 200 (96) 169 (163–227) 1.39 0.48
UnitedHealthcare 101 510 20 026 117 (66) 98 (71–139) 1.97 0.57 135 (77) 109 (109–109) 1 0.57
Transvaginal ultrasound (nonobstetric) 76 830 All Four Payers 469 934 24 071 145 (121) 112 (83–160) 1.92 0.84 336 (1314) 174 (110–304) 2.76 3.91
Aetna 58 327 12 727 101 (75) 73 (62–106) 1.69 0.74 165 (127) 126 (75–215) 2.87 0.77
BlueCross BlueShield 267 020 22 095 159 (145) 116 (91–165) 1.81 0.91 583 (2024) 280 (176–443) 2.51 3.47
Cigna 51 018 16 929 112 (54) 98 (78–131) 1.69 0.49 250 (119) 215 (196–284) 1.45 0.48
UnitedHealthcare 93 569 17 626 150 (82) 126 (91–181) 1.99 0.54 161 (78) 135 (135–135) 1 0.49
Complete pelvic ultrasound 76 856 All Four Payers 473 778 24 101 138 (114) 106 (79–151) 1.92 0.83 312 (1124) 165 (105–292) 2.78 3.6
Aetna 58 852 12 796 94 (74) 68 (56–98) 1.73 0.79 152 (131) 110 (70–196) 2.79 0.86
BlueCross BlueShield 269 688 22 163 154 (136) 112 (88–157) 1.79 0.88 527 (1713) 269 (180–427) 2.37 3.25
Cigna 51 193 16 937 106 (50) 94 (73–122) 1.68 0.47 227 (108) 194 (177–258) 1.46 0.48
UnitedHealthcare 94 045 17 700 138 (74) 119 (84–164) 1.96 0.54 182 (73) 163 (163–163) 1 0.4
X-ray Chest X-ray, single view 71 045 All Four Payers 540 881 28 920 32 (28) 24 (17–35) 2.02 0.87 160 (1029) 48 (25–119) 4.7 6.41
Aetna 60 164 13 785 24 (21) 17 (14–25) 1.79 0.91 49 (94) 31 (19–53) 2.73 1.9
BlueCross BlueShield 318 140 26 716 34 (31) 25 (20–39) 1.95 0.89 285 (1518) 96 (40–180) 4.52 5.33
Cigna 56 180 19 435 22 (12) 19 (15–28) 1.88 0.54 55 (31) 47 (28–58) 2.09 0.57
UnitedHealthcare 106 397 21 039 33 (25) 26 (18–40) 2.29 0.77 180 (116) 171 (100–241) 2.41 0.65
Chest X-ray, two views 71 046 All Four Payers 549 078 29 245 43 (36) 32 (25–50) 2.02 0.83 197 (1253) 66 (36–142) 3.97 6.36
Aetna 62 461 14 121 31 (24) 23 (20–32) 1.6 0.77 64 (92) 43 (26–75) 2.93 1.43
BlueCross BlueShield 321 837 26 980 48 (41) 35 (27–52) 1.93 0.87 348 (1849) 108 (59–192) 3.25 5.31
Cigna 56 290 19 556 31 (16) 27 (21–38) 1.78 0.5 68 (38) 62 (36–75) 2.09 0.56
UnitedHealthcare 108 490 21 276 43 (27) 35 (23–54) 2.31 0.62 178 (107) 169 (100–238) 2.38 0.6
Lower spine X-ray, 2–3 views 72 100 All Four Payers 499 658 25 857 49 (44) 37 (28–54) 1.9 0.9 217 (1584) 66 (40–153) 3.78 7.31
Aetna 60 429 13 422 37 (56) 26 (23–37) 1.61 1.52 62 (89) 43 (27–75) 2.74 1.43
BlueCross BlueShield 286 055 23 725 54 (48) 40 (31–57) 1.86 0.89 449 (2514) 159 (81–230) 2.83 5.6
Cigna 54 189 18 094 37 (18) 33 (25–44) 1.72 0.49 86 (44) 75 (48–103) 2.13 0.51
UnitedHealthcare 98 985 18 840 48 (28) 40 (29–58) 1.98 0.58 88 (96) 48 (48–48) 1 1.09
Shoulder X-ray 73 030 All Four Payers 515 580 26 437 42 (35) 32 (24–47) 1.95 0.84 162 (1044) 56 (36–120) 3.37 6.44
Aetna 62 155 13 688 31 (30) 22 (19–31) 1.64 0.99 56 (93) 37 (23–64) 2.71 1.67
BlueCross BlueShield 295 633 24 295 46 (40) 36 (26–49) 1.87 0.87 315 (1636) 110 (68–192) 2.8 5.19
Cigna 55 555 18 423 31 (16) 27 (21–37) 1.75 0.51 71 (38) 64 (37–77) 2.09 0.54
UnitedHealthcare 102 237 19 370 42 (25) 34 (26–49) 1.88 0.59 75 (76) 44 (44–44) 1 1.01
Hand X-ray 73 130 All Four Payers 498 973 25 566 43 (35) 33 (24–49) 2.01 0.81 211 (1332) 61 (38–123) 3.27 6.31
Aetna 59 977 13 258 32 (28) 23 (20–33) 1.64 0.89 58 (87) 40 (25–68) 2.73 1.5
BlueCross BlueShield 286 032 23 504 48 (40) 36 (27–51) 1.88 0.84 435 (2082) 118 (73–200) 2.73 4.78
Cigna 54 107 18 018 32 (17) 28 (22–39) 1.76 0.52 81 (42) 70 (46–93) 2.01 0.52
UnitedHealthcare 98 857 18 709 43 (26) 36 (25–51) 2.07 0.62 75 (78) 42 (42–42) 1 1.05
Knee X-ray, three views 73 562 All Four Payers 488 612 24 696 48 (41) 37 (27–55) 2.01 0.85 204 (1192) 75 (38–140) 3.7 5.85
Aetna 58 899 12 902 36 (42) 25 (22–36) 1.6 1.19 62 (73) 44 (27–75) 2.73 1.19
BlueCross BlueShield 280 482 22 719 54 (46) 41 (30–58) 1.9 0.86 374 (1778) 124 (79–208) 2.63 4.75
Cigna 52 808 17 371 36 (19) 31 (24–43) 1.77 0.53 86 (48) 75 (45–99) 2.22 0.55
UnitedHealthcare 96 423 18 094 47 (28) 39 (29–55) 1.92 0.58 178 (105) 162 (110–225) 2.05 0.59
Ankle X-ray 73 610 All Four Payers 498 854 25 536 44 (40) 33 (25–49) 1.99 0.92 193 (1257) 61 (38–123) 3.24 6.53
Aetna 59 997 13 258 33 (49) 23 (20–33) 1.63 1.48 58 (86) 40 (25–70) 2.77 1.5
BlueCross BlueShield 286 748 23 496 48 (44) 35 (28–53) 1.91 0.92 388 (1963) 119 (74–200) 2.72 5.06
Cigna 53 678 17 842 32 (17) 28 (22–39) 1.77 0.52 76 (42) 68 (39–83) 2.11 0.54
UnitedHealthcare 98 431 18 676 43 (25) 36 (26–52) 1.96 0.58 74 (79) 41 (41–41) 1 1.08
Foot X-ray 73 630 All Four Payers 507 314 26 045 42 (36) 32 (24–46) 1.96 0.86 153 (949) 58 (36–119) 3.34 6.21
Aetna 60 859 13 479 31 (32) 22 (19–31) 1.62 1.05 55 (87) 37 (24–66) 2.73 1.56
BlueCross BlueShield 291 682 23 961 46 (40) 33 (26–50) 1.93 0.88 294 (1488) 112 (70–191) 2.75 5.06
Cigna 54 630 18 200 31 (16) 27 (21–37) 1.7 0.5 72 (37) 63 (38–76) 2.03 0.52
UnitedHealthcare 100 143 19 089 42 (29) 34 (25–49) 2.01 0.71 72 (77) 42 (42–42) 1 1.06
Abdominal X-ray, single view 74 018 All Four Payers 512 546 27 347 38 (31) 29 (22–42) 1.97 0.82 207 (1337) 61 (34–129) 3.81 6.45
Aetna 57 159 13 131 28 (23) 21 (18–30) 1.66 0.81 58 (86) 40 (24–67) 2.74 1.48
BlueCross BlueShield 300 334 25 251 42 (36) 31 (24–44) 1.87 0.85 371 (1950) 103 (55–181) 3.28 5.25
Cigna 53 353 18 423 28 (14) 24 (19–34) 1.77 0.5 65 (34) 55 (35–78) 2.2 0.52
UnitedHealthcare 101 700 19 952 38 (24) 30 (20–46) 2.26 0.65 181 (109) 172 (107–241) 2.26 0.6
Bone density scan (DXA), spine/hips 77 080 All Four Payers 278 039 16 062 70 (63) 53 (32–86) 2.68 0.9 299 (1455) 105 (54–226) 4.17 4.86
Aetna 35 258 8160 53 (56) 35 (26–63) 2.43 1.07 102 (113) 64 (38–117) 3.1 1.11
BlueCross BlueShield 160 815 14 674 80 (71) 61 (34–104) 3.01 0.89 544 (2173) 199 (108–316) 2.93 3.99
Cigna 27 952 10 503 55 (29) 48 (33–72) 2.2 0.52 91 (43) 79 (70–103) 1.46 0.47
UnitedHealthcare 54 014 11 341 60 (44) 47 (32–71) 2.2 0.74 246 (116) 245 (180–303) 1.69 0.47

These data represent TiC data from ClarifyHealth, which aggregates price data for the 2023 contract year. Prices reflect the “allowed amount,” which is the amount negotiated between an insurer and provider for a given Current Procedural Terminology (CPT) code (distinct from the “chargemaster rate”).

Source: Author's analysis.

As a descriptive example of price variation for imaging studies by geography, Figure 1 maps the variation in prices for chest X-rays across states. Professional prices for chest X-rays are relatively low and show limited variation across states, but facility prices are higher and have an upper limit of approximately 5 times its lower bound across states. Similar findings were present for other procedures.

Figure 1.

Figure 1.

Map of median rates by state for chest X-ray [CPTs 71 045 and 71 046]. Source: author's analysis. (A) Professional rates. (B) Facility rates.

Discussion

The findings of this study highlight significant variation in commercial pricing for common imaging studies, with facility prices exhibiting greater variability, especially for X-ray studies. We observe not just geographic variation in commercial prices, but also payer-specific variation across named insurers that suggest unique bargaining strategies, and extend prior work using hospital-posted data by including both hospital and nonhospital providers. The higher prices observed for BCBS likely reflect their market power and strategic decision to maintain broad provider networks, which typically require higher reimbursement rates to attract and retain providers.23,24 Cigna's consistently lower prices across imaging studies suggest a successful implementation of selective contracting with providers who accept lower reimbursement rates in exchange for higher patient volume.23 Aetna's consistently lower prices, particularly in facility fees, suggests an aggressive negotiating stance with providers and possibly a willingness to exclude higher-cost facilities from their networks,25 even if this means more limited geographic coverage. United Healthcare's unique pattern of average professional fees but markedly lower facility fees, particularly in mammography, may reflect a vertical integration strategy through its subsidiary, Optum, where it can better control facility costs through direct ownership while maintaining competitive physician compensation to ensure network adequacy.26

The pricing patterns observed in part reflect different negotiation strategies and market positioning. While our analysis examines variation across major insurers, significant heterogeneity exists within individual insurers’ networks. For example, different plans (including employer-specific plans) from the same insurer can have substantially different prices even within the same hospital or for the same physician.27,28 This within-insurer variation likely contributes to the overall price dispersion observed in our study.

Our findings of greater variation in facility fees for X-rays compared to advanced imaging like MRI and CT may reflect, in part, differences in site-of-service utilization. X-rays can be performed across multiple settings (hospitals, ambulatory surgical centers, and physician offices), while advanced imaging is more commonly performed in hospital settings. Recent studies using Transparency-in-Coverage data have documented substantial site-of-service price differentials for other services. Wang et al.29 found facility fees for colonoscopies were approximately 55% higher in hospitals compared to ambulatory surgical centers. Similar patterns exist for imaging services, with BCBS data showing hospital outpatient department prices for imaging 2–3 times higher than physician office prices, with these differentials increasing over time.30 While our current analysis focuses on payer-specific variation rather than site-of-service differences, the observed price patterns—particularly the wider variation in X-ray facility fees—may reflect these site-of-service dynamics. Future research should examine how imaging prices vary across different care settings and how site-neutral payment policies might affect commercial market prices.

The cost burden on patients and insurers can differ widely depending on the location and the service provided, potentially exacerbating healthcare inequities. The state-level variation in prices further underscores the potential influence of local market dynamics, such as provider market concentration, insurer market power, cost of living adjustments, state-specific regulatory environments, and local practice patterns—with facility fees showing particularly pronounced geographic disparities compared to the more uniform professional component pricing. Outlier states (such as Wisconsin and Alaska) with higher than average professional prices may be explained by strong physician practices with increased negotiating leverage1 or Medicare payment policy allowing for geographic payment adjustment.31

This study reveals how novel TiC data may inform policies that improve the efficiency of the US health care system. Future work should extend this study and examine the underlying causes of price variation in imaging studies. Existing studies show minimal relationship between prices and care quality or efficiency.32 The disconnect between pricing and quality metrics is particularly noteworthy in imaging studies, where standardization of equipment and protocols should theoretically lead to more uniform pricing structures.11,33 Even among these relatively standardized procedures, we observe inconsistent patterns of commercial insurance price variation. If price variation reflects clinical or perceived quality variation, purchasers and policymakers must find the balance between receiving higher-quality care and spending financial resources elsewhere. However, if price variation is driven by consolidation or anticompetitive contracting, then regulators should design policies that ensure competitive healthcare markets. The factors determining price variation are likely somewhere in the middle of these two possibilities, but likely skewed towards the latter in the case of imaging studies where quality should be relatively constant.

Supplementary Material

qxaf092_Supplementary_Data

Contributor Information

Alexander P Philips, Center for Advancing Health Policy Through Research (CAHPR), Brown School of Public Health, Providence, RI 02903, USA; Warren Alpert Medical School of Brown University, Providence, RI 02903, USA.

Christopher Whaley, Center for Advancing Health Policy Through Research (CAHPR), Brown School of Public Health, Providence, RI 02903, USA; Department of Health Services, Policy, and Practice, Brown School of Public Health, Providence, RI 02903, USA.

Supplementary material

Supplementary material is available at Health Affairs Scholar online.

Notes

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