Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. William Nicholas, MD

Individual provider Allergy & Immunology Physician · NPI 1326116427

Dr. William Nicholas, MD is an Allergy & Immunology Physician in East Hampton, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

44 Oyster Shores Rd
East Hampton, NY 11937-1179 Not confirmed with CMS for 19 years — call before visiting
Phone: (631) 324-8946
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence 078001 (NY)

Record details

NPI number1326116427
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 30, 2006
Last updated in NPPESJuly 8, 2007