NPPES file of Aug 9, 2026

Allergy & Immunology Physician providers in the U.S.

3,924 NPPES records list allergy & immunology physician as their primary taxonomy, about 1.2 per 100,000 residents; District of Columbia and Massachusetts have the most per resident. 2,899 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207K00000X · method

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

What taxonomy code 207K00000X means

207K00000X is the National Uniform Claim Committee code for Allergy & Immunology, in the grouping Allopathic & Osteopathic Physicians. 3,924 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Source: NUCC Health Care Provider Taxonomy code set, definition as NUCC publishes it (nucc.org); counts from CMS NPPES.

Most per resident: the 8 highest

  1. District of Columbia2.9
  2. Massachusetts1.7
  3. Maryland1.7
  4. Colorado1.7
  5. New York1.6
  6. Virginia1.6
  7. Connecticut1.6
  8. Minnesota1.5
  9. 50 states and D.C.1.2

Source: CMS NPPES, primary taxonomy 207K00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

New York has the most, 72

  1. New York, NY72
  2. San Diego, CA48
  3. Boston, MA48
  4. Chicago, IL47
  5. Charlotte, NC41
  6. Houston, TX40
  7. Philadelphia, PA39
  8. Los Angeles, CA34

Source: CMS NPPES, primary taxonomy 207K00000X by practice city, file of Aug 9, 2026.

All 51 by state

StateRecordsPer 100,000
Alabama270.5
Alaska81.1
Arizona881.2
Arkansas240.8
California4441.1
Colorado1021.7
Connecticut571.6
Delaware111.1
District of Columbia202.9
Florida2040.9
Georgia1071.0
Hawaii171.2
Idaho80.4
Illinois1621.3
Indiana500.7
Iowa331.0
Kansas371.3
Kentucky651.4
Louisiana581.3
Maine100.7
Maryland1081.7
Massachusetts1211.7
Michigan1371.4
Minnesota851.5
Mississippi230.8
Missouri360.6
StateRecordsPer 100,000
Montana121.1
Nebraska201.0
Nevada160.5
New Hampshire141.0
New Jersey1321.4
New Mexico180.9
New York3111.6
North Carolina1461.3
North Dakota60.8
Ohio1321.1
Oklahoma190.5
Oregon431.0
Pennsylvania1831.4
Rhode Island121.1
South Carolina500.9
South Dakota30.3
Tennessee851.2
Texas3271.1
Utah290.8
Vermont40.6
Virginia1361.6
Washington901.2
West Virginia120.7
Wisconsin631.1
Wyoming20.3

In federal data

  • NUCC code207K00000X · Allergy & Immunology
  • Size rank149th of 688 specialties by records (0.05% of all)
  • In its family1st of 3 Allergy & Immunology codes, 78.3% of the family
  • Part D prescribers2,899 (73.9% of records)
  • Part D claims741 a year per prescriber, on average (121st of 496)
  • Industry payments2,496 physicians paid $20.8M in 2024, $8K each on average
  • Concentration9 states hold half of all records

Source: CMS NPPES; Medicare Part D Prescriber PUF; CMS Open Payments 2024. Presence in these files is not a quality judgment.

A sample of allergy & immunology physician records

  1. Jeffrey Demain, M.DAnchorage, AK1548201395
  2. Audra Cochran, MDElmendorf Afb, AK1073861720
  3. Melinda Rathkopf, M.D.Anchorage, AK1336130020
  4. David Hemry, MDAnchorage, AK1083725899
  5. April Arseneau, MDPalmer, AK1588845275
  6. Kristina James, MDSoldotna, AK1588711444
  7. James Foote, M.D.Fairbanks, AK1033184023
  8. Anthony Bonitatibus, MDFairbanks, AK1689606477
  9. Thomas Scott, MDBessemer, AL1043247430
  10. Joseph Forester, D.O.Cullman, AL1972520658
  11. John Anderson, M.D.Homewood, AL1154543452
  12. Njeri Maina, MDBirmingham, AL1720213838
  13. Michael Polcari, MDBirmingham, AL1568807378
  14. Jeffrey Roseman, M.D.Birmingham, AL1437421328
  15. Thomas Atkinson, MDBirmingham, AL1508853631
  16. Tracy HwangpoBirmingham, AL1841451101

Registry order, not a ranking. Search by name to find one provider.

Common questions

Where does the large Allergy & Immunology Physician headcount concentrate?

3,924 Allergy & Immunology Physician NPIs span 52 states; California alone holds 444. Top metros include New York, NY; San Diego, CA; Boston, MA; Chicago, IL. Nationally this is 149th of 688 NUCC codes.

How large is Allergy & Immunology Physician's Open Payments footprint?

CMS Open Payments 2024 lists 2,496 Allergy & Immunology Physician physicians totaling $20.8M (119,017 payments; average $8K, 48th of 470). Presence in Open Payments is not a quality judgment.

How heavy is Allergy & Immunology Physician Part D prescribing at scale?

Among Allergy & Immunology Physician NPIs, 2,899 appear in the Medicare Part D Prescriber PUF (average 741 claims and $436K drug cost per prescriber; 121st of 496 specialties by average claims). Non-prescribing clinicians in the same NUCC code are still in NPPES.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy (nucc.org); Medicare Part D Prescriber PUF; CMS Open Payments 2024. Counts are self-designated primary taxonomy, not board certification.

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 Aug 9, 2026.