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

Nancy L Sullivan, NP

Individual provider Adult Health Nurse Practitioner · NPI 1992713598

Nancy L Sullivan, NP is a Nurse Practitioner in Williamsville, New York. Graduated from State University of New York at Buffalo School of Medicine in 2002, 24 years ago. Practices with Buffalo Medical Group, PC, a 236-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
24
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
NY
In the registry since
2006
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

295 Essjay Rd
Williamsville, NY 14221-8216
Phone: (716) 630-1045
Fax: (716) 630-1451
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence F303529-1 (NY)

Record details

NPI number1992713598
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedAugust 3, 2006
Last updated in NPPESDecember 14, 2021
Certification dateDecember 14, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Buffalo Medical Group, P.C. — 236 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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