Allergy & Immunology Physician vs Allergy Physician

Allergy & Immunology Physician has 3.9 times as many registry records as Allergy Physician: 3,924 against 1,009. 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

Allergy & Immunology Physician: 3,924 records in 52 states

California444
Texas327
New York311
Florida204
Pennsylvania183

Allergy & Immunology Physician nationwide →

Allergy Physician: 1,009 records in 50 states

California157
New York109
Texas76
Florida66
Illinois56

Allergy Physician nationwide →

By state, with records per 100,000 residents

State	Allergy & Immunology Physician	Allergy Physician	Per 100,000 (first)	Per 100,000 (second)
California	444	157	1.1	0.4
New York	311	109	1.6	0.6
Texas	327	76	1.1	0.2
Florida	204	66	0.9	0.3
Pennsylvania	183	36	1.4	0.3
Illinois	162	56	1.3	0.4
New Jersey	132	42	1.4	0.5
Michigan	137	31	1.4	0.3
Virginia	136	31	1.6	0.4
North Carolina	146	13	1.3	0.1
Massachusetts	121	37	1.7	0.5
Ohio	132	23	1.1	0.2
Maryland	108	38	1.7	0.6
Georgia	107	23	1.0	0.2
Colorado	102	12	1.7	0.2
Washington	90	18	1.2	0.2
Tennessee	85	15	1.2	0.2
Arizona	88	11	1.2	0.1
Minnesota	85	7	1.5	0.1
Wisconsin	63	18	1.1	0.3
Kentucky	65	10	1.4	0.2
Connecticut	57	16	1.6	0.4
South Carolina	50	12	0.9	0.2
Indiana	50	11	0.7	0.2
Louisiana	58	2	1.3	0.0
Missouri	36	22	0.6	0.4
Oregon	43	10	1.0	0.2
Kansas	37	2	1.3	0.1
Alabama	27	11	0.5	0.2
Iowa	33	5	1.0	0.2
Utah	29	8	0.8	0.2
Arkansas	24	3	0.8	0.1
Oklahoma	19	8	0.5	0.2
Mississippi	23	2	0.8	0.1
New Hampshire	14	11	1.0	0.8
District of Columbia	20	4	2.9	0.6
Nebraska	20	3	1.0	0.2
Nevada	16	6	0.5	0.2
New Mexico	18	3	0.9	0.1
Hawaii	17	2	1.2	0.1
Rhode Island	12	5	1.1	0.5
Delaware	11	5	1.1	0.5
Idaho	8	8	0.4	0.4
Montana	12	3	1.1	0.3
West Virginia	12	3	0.7	0.2
Alaska	8	6	1.1	0.8
Maine	10	0	0.7	0.0
North Dakota	6	2	0.8	0.3
Vermont	4	1	0.6	0.2
South Dakota	3	1	0.3	0.1
Wyoming	2	0	0.3	0.0

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

Common questions

How many Allergy & Immunology Physician providers are there vs Allergy Physician?

There are 3,924 Allergy & Immunology Physician and 1,009 Allergy Physician records in the CMS NPPES registry, counted by primary taxonomy.

Which specialty is spread across more states?

Allergy & Immunology Physician has records in 52 states and territories, against 50.

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.