Allergy and immunology clinicians by listed sex

Individual clinicians with a primary allergy and immunology taxonomy, grouped by the sex field in the NPI Registry. Based on 5,778 individual clinician (NPI-1) records with a primary allergy and immunology taxonomy in the federal NPI Registry.

Source: NPPES NPI Registry (CMS). National counts by the listed sex field.

Item	Count
Male	3,245
Female	2,532
Not listed	1

Use this chart with credit to Immunologists.com. See the full chart library or the directory.

Sources

NPPES NPI Registry (Centers for Medicare and Medicaid Services)
Counts come from a November 2026 pull of the NPPES NPI Registry API, filtered to records whose primary taxonomy is allergy and immunology. Individual clinicians are NPI-1 records and organizations are NPI-2 records. National counts by the listed sex field.

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