Table 4.

Total and Out-of-ACO Expenditures across Study Beneficiaries

	N	Mean Expenditures per Beneficiary	SD	Percent Out- of-ACO Expenditures
Total Expenditures (Part A, B, D)	11,922	$ 14,481	$ 30,011	32.9%
Inpatient (Part A & B)	3,278	$ 19,719	$ 35,833	25.9%
Outpatient (Part A & B)	11,916	$ 4,967	$ 9,834	37.0%
Outpatient Office (Part B only)	11,906	$ 2,786	$ 5,872	45.3%
Emergency Department (Part B only)	3,859	$ 777	$ 3,199	87.5%
Outpatient Other (Part B only)	2,387	$ 45	$ 45	100.0%
Long-term Care (Part A & B)	2,317	$ 11,543	$ 17,820	35.1%
Dialysis (Part A & B)	319	$ 10,567	$ 15,352	49.3%
Ambulatory Surgery Center (Part A & B)	1,332	$ 1,120	$ 1,459	92.4%
Other (Part A & B)	3,239	$ 1,252	$ 6,253	27.3%
Prescription Drug (Part D)	8,726	$ 1,507	$ 3,207	35.6%