Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Margaret Bernadette Ryan, M.D.

Surgery Physician in Cooperstown, NY · enumerated 2006.

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

National Provider Identifier

1912961178

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Registry record

Entity type Individual (Type 1)

Name Dr. Margaret Bernadette Ryan

Credential M.D.

Sex Female

Practice address 1 Atwell Rd, Cooperstown, NY, 13326

Phone (607) 547-3471

Fax (607) 547-6551

Enumeration date Apr 14, 2006

Last updated in NPPES Nov 11, 2010

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 143582 (NY) Primary

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License 143582 (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
020016190	Other	-	RR MEDICARE
01297525	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.

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Frequently asked questions

How do I verify Margaret Ryan's NPI record?

Cross-check NPI 1912961178 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1912961178 active?

Yes, as of the latest NPPES snapshot, NPI 1912961178 is active (record last updated 2010-11-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-11.