Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Martin Cowan, M.D.

Obstetrics & Gynecology Physician in Monticello, NY · enumerated 2006.

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

National Provider Identifier

1891714358

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Registry record

Entity type Individual (Type 1)

Name Dr. Martin Cowan

Credential M.D.

Sex Male

Practice address Monticello, NY, 12701

Phone (845) 794-5558

Fax (845) 794-0135

Enumeration date Jul 18, 2006

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 090532 (NY) Primary

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
00528010	Medicaid	NY	-
3878	Other	NY	GHIHMO
27334	Other	NY	BLUE CROSS
27436	Other	NY	AETNA
0041203	Other	NY	GHI
167101	Other	NY	MVP
P423820	Other	NY	OXFORD HEALTH PLANS

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 Martin Cowan's NPI record?

Cross-check NPI 1891714358 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1891714358 active?

Yes, as of the latest NPPES snapshot, NPI 1891714358 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.