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Allergy and immunology in Connecticut

The federal NPI Registry lists 85 individual clinicians in Connecticut with allergy and immunology as their primary specialty, plus 34 organizations. That ranks Connecticut 22nd among the 50 states and DC by listed clinicians.

Cities with the most listed clinicians

CityClinicians listed
West Hartford13
Norwalk9
Danbury8
New Haven7
Fairfield5
North Haven5
Waterford4
Waterbury4
Hamden3
Stamford3

Specialty mix

Primary taxonomyClinicians
Allergy & Immunology57
Allergy & Immunology, Allergy16
Internal Medicine, Allergy & Immunology7
Pediatrics, Pediatric Allergy/Immunology3
Allergy & Immunology, Clinical & Laboratory Immunology2

This pull searched the registry's Allergy & Immunology taxonomy. Pediatric subspecialists are registered under separate pediatric taxonomies, so the pediatric rows here undercount them.

Organizations listed on Immunologists.com

4 of the 34 allergy and immunology organizations in the Connecticut registry count have a profile on Immunologists.com so far. The rest don't have a listing here yet, and a profile is not an endorsement.

For practice owners

Planning a sale, a partner buy-in or a new hire in Connecticut? Run the numbers with the practice calculators, or text Richard at (808) 600-9260 about growth capital.

Sources
  • NPPES NPI Registry (Centers for Medicare and Medicaid Services), primary taxonomy counts by practice location state
  • Counts come from a November 2026 pull of the NPPES NPI Registry API, filtered to records whose primary taxonomy is allergy and immunology and grouped by practice location address. Individual clinicians are NPI-1 records and organizations are NPI-2 records.

Immunologists.com is a business directory and education site. It does not give medical advice, rank or rate care, or refer patients. Listings come from public registry data and are not endorsements.

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