Individual provider · Type 1 NPI

William Grant Day, MD

Allergy & Immunology Physician · Portsmouth, VA

NPI number 1740745041 Active

Practice location

620 John Paul Jones Cir Ste 275
Portsmouth, VA 23708-2197

Call (757) 953-2000 Map

Mailing address

620 John Paul Jones Cir
Portsmouth, VA 23708-2111

Specialties and licenses

Taxonomy	Code	License
Allergy & Immunology Physician Primary	207K00000X	0101271195 (VA)
Internal Medicine Physician	207R00000X	0101271195 (VA)

Allergy & Immunology Physician: 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 dise…

28 other providers at this address

About NPI 1740745041

William Grant Day, MD's National Provider Identifier is 1740745041, issued on Jan 31, 2019. The primary taxonomy on file is Allergy & Immunology Physician (207K00000X), and the practice location is in Portsmouth, VA. The record was last updated on Jun 30, 2026.