Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald F Switzer, MD

Cardiovascular Disease Physician in Williamsville, NY · enumerated 2006.

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

National Provider Identifier

1326098112

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald F Switzer

Credential MD

Sex Male

Practice address 6333 Main St, Suite 2, Williamsville, NY, 14221

Phone (716) 630-1484

Fax (716) 630-1413

Enumeration date May 11, 2006

Last updated in NPPES Sep 21, 2011

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 147557-1 (NY) Primary

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 147557-1 (NY) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00010176202	Other	NY	UNIVERA
01036502	Medicaid	NY	-
0021748	Other	NY	GHI
000510051002	Other	NY	HEALTH NOW
16-1000580	Other	NY	NORTH AMERICAN PREFERRED
040426001618	Other	NY	FIDELIS
161000580	Other	NY	CIGNA
060055051	Other	NY	RR MEDICARE
147557-3B	Other	NY	WORKERS COMPENSATION
16-1000580	Other	NY	AETNA
161000580	Other	NY	EMPIRE
2102025	Other	NY	IHA
161000580	Other	NY	NOVA

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 do I verify Donald Switzer's NPI record?

Cross-check NPI 1326098112 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1326098112 active?

Yes, as of the latest NPPES snapshot, NPI 1326098112 is active (record last updated 2011-09-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-21.