Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gastroenterology Associates, LLP

Gastroenterology Physician in Williamsville, NY · enumerated 2006 · authorized official Barbara Fleissner, Credentialing Specialist.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1740259647

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Registry record

Entity type Organization (Type 2)

Legal business name Gastroenterology Associates, LLP

Practice address 60 Maple Rd, Ste 1, Williamsville, NY, 14221

Phone (716) 626-5283

Fax (716) 332-2218

Enumeration date Mar 14, 2006

Last updated in NPPES Dec 27, 2017

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Barbara Fleissner

Title Credentialing Specialist

Phone (716) 626-5250

Other identifiers

Identifier	Type	State	Issuer
02052606	Medicaid	NY	-
2400834	Other	NY	GHI

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2017-12-27. Verify at npiregistry.cms.hhs.gov.

Where is Gastroenterology Associates, LLP located?

The practice location on file with NPPES is in Williamsville, NY.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-27.