Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David R Dougherty, DO

Medical Oncology Physician in Williamsville, NY · enumerated 2006.

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

National Provider Identifier

1235196189

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Registry record

Entity type Individual (Type 1)

Name Dr. David R Dougherty

Credential DO

Sex Male

Practice address 295 Essjay Rd, Williamsville, NY, 14221

Phone (716) 630-1045

Fax (716) 630-1451

Enumeration date Apr 26, 2006

Last updated in NPPES Dec 10, 2021

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 190466-1 (NY) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
00010047601	Other	NY	UNIVERA
060030225	Other	NY	RR MEDICARE
161000580	Other	NY	NORTH AMERICAN PREFERRED
01503039	Medicaid	NY	-
2706325	Other	NY	IHA
000523376001	Other	NY	HEALTH NOW
161000580	Other	NY	EMPIRE
2504875	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

Where does David Dougherty practice?

The practice location on file with NPPES is in Williamsville, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for David Dougherty?

The National Provider Identifier (NPI) for David Dougherty is 1235196189, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-10.