Clinical Social Worker vs Internal Medicine Physician

Clinical Social Worker has 2.1 times as many registry records as Internal Medicine Physician: 312,758 against 149,962. Each count is the NPPES records whose primary taxonomy is the specialty, so it measures how providers describe their main practice, not everyone trained in it.

CMS NPPES, file of Aug 9, 2026; 2023 Census population estimates · method

Clinical Social Worker: 312,758 records in 56 states

California36,261
New York29,293
Massachusetts17,815
Michigan17,644
North Carolina15,561

Clinical Social Worker nationwide →

Internal Medicine Physician: 149,962 records in 56 states

California17,696
New York12,067
Florida10,151
Texas9,175
Pennsylvania7,300

Internal Medicine Physician nationwide →

By state, with records per 100,000 residents

State	Clinical Social Worker	Internal Medicine Physician	Per 100,000 (first)	Per 100,000 (second)
California	36,261	17,696	93.1	45.4
New York	29,293	12,067	149.7	61.7
Massachusetts	17,815	6,825	254.4	97.5
Florida	13,458	10,151	59.5	44.9
Michigan	17,644	5,735	175.8	57.1
Illinois	13,637	7,238	108.7	57.7
Texas	11,683	9,175	38.3	30.1
North Carolina	15,561	4,056	143.6	37.4
Pennsylvania	7,830	7,300	60.4	56.3
Ohio	9,815	5,277	83.3	44.8
New Jersey	9,790	4,632	105.4	49.9
Maryland	9,007	3,904	145.7	63.2
Virginia	8,027	3,599	92.9	41.6
Connecticut	7,729	2,623	213.7	72.5
Washington	6,382	3,079	81.7	39.4
Colorado	7,356	2,046	125.2	34.8
Minnesota	6,609	2,632	115.2	45.9
Georgia	4,911	3,911	44.5	35.5
Missouri	5,398	2,604	87.1	42.0
Indiana	5,650	2,109	82.3	30.7
Oregon	5,014	2,116	118.4	50.0
Wisconsin	4,142	2,078	70.1	35.2
Utah	5,485	664	160.5	19.4
Arizona	3,200	2,853	43.1	38.4
Tennessee	3,275	2,596	46.0	36.4
Kentucky	4,071	1,526	89.9	33.7
Louisiana	3,178	1,749	69.5	38.2
Maine	3,673	597	263.2	42.8
South Carolina	2,046	1,881	38.1	35.0
Alabama	1,788	1,705	35.0	33.4
Rhode Island	2,438	1,033	222.5	94.3
Kansas	2,393	1,010	81.4	34.3
Nevada	2,164	1,229	67.7	38.5
New Mexico	2,526	770	119.5	36.4
Oklahoma	1,995	1,115	49.2	27.5
Iowa	2,170	871	67.7	27.2
Arkansas	2,103	768	68.6	25.0
District of Columbia	1,921	901	282.9	132.7
New Hampshire	1,592	673	113.5	48.0
Idaho	1,750	453	89.1	23.1
Mississippi	1,028	972	35.0	33.1
Hawaii	1,079	902	75.2	62.9
Montana	1,589	324	140.3	28.6
West Virginia	835	754	47.2	42.6
Vermont	1,261	326	194.8	50.4
Nebraska	737	813	37.3	41.1
Delaware	935	600	90.6	58.1
Wyoming	821	134	140.6	22.9
Alaska	759	177	103.5	24.1
South Dakota	565	247	61.5	26.9
North Dakota	566	245	72.2	31.3

Source: CMS NPPES (NPPES files on CMS.gov), primary NUCC taxonomy by practice state; 2023 population estimates (census.gov).

Common questions

How many Clinical Social Worker providers are there vs Internal Medicine Physician?

There are 312,758 Clinical Social Worker and 149,962 Internal Medicine Physician records in the CMS NPPES registry, counted by primary taxonomy.

Which specialty is spread across more states?

Both have records in 56 states and territories.

Where is the data from?

Provider counts are from the CMS National Plan and Provider Enumeration System (NPPES). Per-capita rates use 2023 Census population estimates.

Two specialties are not substitutes: scope of practice, training and the conditions treated differ. More comparisons →

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of the NPPES file of Aug 9, 2026.