Table.

Characteristics of Primary Care Physician Survey Respondents

Characteristic	Survey Respondents (n = 336), %	National Primary Care Physician Population, %*
Specialty
Family practice	52.4	51.5
General practice	4.5	3.6
Internal medicine	43.2	44.9
Age
<35 y	7.6	5.7
35-44 y	19.1	22.6
45-54 y	29.4	30.7
55-64 y	28.5	27.3
≥65 y	15.5	13.7
Sex
Female	41.2	39.1
Male	58.8	60.9
Region
Northeast	22.1	19.0
South	29.8	35.6
Midwest	22.1	20.9
West	26.1	24.6
Practice type†
Solo or 2-physician	17.5	Not available
Group	50.9	Not available
Nongovernmental hospital	4.6	Not available
Government-based	11.4	Not available
Other‡	15.6	Not available
Buprenorphine waivers§
Physicians with X waiver	10.6	Not available
Mean estimated percentage of patients in panel with OUD	7.1	Not available

OUD = opioid use disorder.

^*From reference 2.

^†National data on practice type among primary care physicians defined as family, internal, or general medicine physicians are not available.

^‡Includes other patient care, locum tenens, and no classification.

^§In 2019, an estimated 8.3% of all U.S. physicians had a buprenorphine waiver. Data on the proportion of primary care physicians with a waiver nationally are not available (www.samhsa.gov/medication-assisted-treatment/practitioner-program-data/certified-practitioners).