NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Buffalo Emergency Associates LLP

Emergency Medicine Physician in Williamsville, NY · enumerated 2006 · authorized official David Istvan, Owner.

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

National Provider Identifier

1508816521

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Buffalo Emergency Associates LLP
Practice address 6653 Main St, Williamsville, NY, 14221
Phone (719) 204-4500
Fax (716) 204-4501
Enumeration date May 11, 2006
Last updated in NPPES Jun 13, 2023

Taxonomy & classification

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians Primary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name David Istvan
Title Owner
Phone (856) 686-4394

Other identifiers

Identifier Type State Issuer
02066131 Medicaid NY -

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.

Read the full guide → Validate an NPI →

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 2023-06-13. Verify at npiregistry.cms.hhs.gov.
Where is Buffalo Emergency Associates LLP located?
The practice location on file with NPPES is in Williamsville, NY.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-13.