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

Dr. Peter Fields II, MD

Individual provider Gastroenterology Physician · NPI 1790246452

Dr. Peter Fields II, MD is a Gastroenterology in Williamsville, New York. Graduated from State University of New York at Buffalo School of Medicine in 2019, 7 years ago. Practices with Gastroenterology Associates LLP, a 28-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
7
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
NY
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

60 Maple Rd Ste 1
Williamsville, NY 14221-2917
Phone: (716) 626-5250
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • Elm And Carlton St, Buffalo, NY 14263-0001 — (716) 845-2300

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 318131 (NY)

Record details

NPI number1790246452
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 26, 2019
Last updated in NPPESMay 11, 2026
Certification dateMay 11, 2026
Mailing addressElm And Carlton St, Buffalo, NY 14263-0001

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Gastroenterology Associates Llp — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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