Allergy & Immunology Providers — NPI Directory

7,287 active Allergy & Immunology providers hold an NPI in the latest NPPES snapshot. Allergy & Immunology falls under the “Allopathic & Osteopathic Physicians” taxonomy grouping and spans 3 NUCC taxonomy codes. Browse by state, or look a provider up by name or NPI number.

Allergy & Immunology by state

Allergy & Immunology in California (845)
Allergy & Immunology in Texas (651)
Allergy & Immunology in New York (600)
Allergy & Immunology in Florida (454)
Allergy & Immunology in Pennsylvania (316)
Allergy & Immunology in Illinois (300)
Allergy & Immunology in New Jersey (271)
Allergy & Immunology in Michigan (262)
Allergy & Immunology in Virginia (240)
Allergy & Immunology in Ohio (239)
Allergy & Immunology in Maryland (236)
Allergy & Immunology in Massachusetts (234)
Allergy & Immunology in North Carolina (208)
Allergy & Immunology in Georgia (198)
Allergy & Immunology in Colorado (161)
Allergy & Immunology in Tennessee (149)
Allergy & Immunology in Arizona (143)
Allergy & Immunology in Washington (130)
Allergy & Immunology in Minnesota (115)
Allergy & Immunology in Kentucky (114)
Allergy & Immunology in Indiana (107)
Allergy & Immunology in Connecticut (105)
Allergy & Immunology in Wisconsin (99)
Allergy & Immunology in Missouri (98)
Allergy & Immunology in Louisiana (92)
Allergy & Immunology in South Carolina (92)
Allergy & Immunology in Oregon (73)
Allergy & Immunology in Alabama (56)
Allergy & Immunology in Utah (53)
Allergy & Immunology in Oklahoma (50)
Allergy & Immunology in Iowa (49)
Allergy & Immunology in Kansas (49)
Allergy & Immunology in Arkansas (44)
Allergy & Immunology in Mississippi (41)
Allergy & Immunology in Nevada (40)
Allergy & Immunology in District of Columbia (35)
Allergy & Immunology in New Mexico (34)
Allergy & Immunology in Puerto Rico (31)
Allergy & Immunology in Nebraska (30)
Allergy & Immunology in West Virginia (30)
Allergy & Immunology in New Hampshire (27)
Allergy & Immunology in Rhode Island (27)
Allergy & Immunology in Hawaii (26)
Allergy & Immunology in Delaware (23)
Allergy & Immunology in Montana (22)
Allergy & Immunology in Idaho (21)
Allergy & Immunology in Alaska (17)
Allergy & Immunology in Maine (17)
Allergy & Immunology in North Dakota (9)
Allergy & Immunology in South Dakota (9)
Allergy & Immunology in Vermont (8)

Taxonomy codes for Allergy & Immunology

207K00000X — Allergy & Immunology Physician (5,503 providers)
207KA0200X — Allergy Physician (1,655 providers)
207KI0005X — Clinical & Laboratory Immunology (Allergy & Immunology) Physician (129 providers)

Frequently asked questions

How do I find a Allergy & Immunology provider's NPI number?

Search by name with the NPI search, or browse by state below. Every profile shows the provider's NPI, taxonomy code, practice address, and NPPES status.

What taxonomy codes does Allergy & Immunology use?

Allergy & Immunology covers 3 NUCC taxonomy codes, including 207K00000X (Allergy & Immunology Physician). Each code page explains when it applies.

How many Allergy & Immunology providers are there in the U.S.?

Our latest NPPES snapshot lists 7,287 active providers with Allergy & Immunology as their primary taxonomy.

Source: CMS NPPES (public data). Snapshot 2026-07-09.