Allergy & Immunology in Wilmington, DE

10 active Allergy & Immunology providers practice in Wilmington, Delaware according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.

Allergy & Immunology providers in Wilmington, DE
NPI	Name	Type	Specialty	Location
1265489173	David P Wien, MD LLC	Organization	Allergy Physician	Wilmington, DE
1861470767	Gregory Marcotte	Individual	Allergy & Immunology Physician	Wilmington, DE
1073018693	Isma Shah	Individual	Allergy & Immunology Physician	Wilmington, DE
1568728442	Leonard H Seltzer MD PA	Organization	Allergy Physician	Wilmington, DE
1548353345	Leonard Seltzer	Individual	Allergy & Immunology Physician	Wilmington, DE
1093876716	Michael M Wydila MD PA	Organization	Allergy & Immunology Physician	Wilmington, DE
1760495097	Michael Wydila	Individual	Allergy & Immunology Physician	Wilmington, DE
1518347095	Michelle Squadrito	Individual	Allergy & Immunology Physician	Wilmington, DE
1831134170	Richard Kim	Individual	Allergy & Immunology Physician	Wilmington, DE
1558407981	Trong Le	Individual	Allergy & Immunology Physician	Wilmington, DE

Frequently asked questions

How many Allergy & Immunology providers are in Wilmington, DE?

The latest NPPES snapshot lists 10 active Allergy & Immunology providers with a practice address in Wilmington, Delaware.

How do I check a Allergy & Immunology provider's NPI in Wilmington?

Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.

Source: CMS NPPES (public data). Snapshot 2026-07-11.