Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Andrew David Muff, PA-C

Medical Physician Assistant in Orchard Park, NY · enumerated 2009.

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

National Provider Identifier

1225362551

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Registry record

Entity type Individual (Type 1)

Name Mr. Andrew David Muff

Credential PA-C

Sex Male

Practice address 3346 Southwestern Blvd., Orchard Park, NY, 14127

Phone (716) 675-3700

Fax (716) 674-0395

Enumeration date Sep 18, 2009

Last updated in NPPES Aug 15, 2024

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 4480 (AZ) Secondary

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA00563 (RI) Secondary

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 15-01799 (KS) Primary

Other identifiers

Identifier	Type	State	Issuer
939025129	Other	RI	RI MEDICARE GROUP

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Andrew Muff?

Andrew Muff is registered in NPPES with the primary taxonomy of Medical Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-15.