Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Katherine Anne Lavigne Mager, MD

Gynecologic Oncology Physician in Buffalo, NY · enumerated 2011.

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

National Provider Identifier

1376825646

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Registry record

Entity type Individual (Type 1)

Name Dr. Katherine Anne Lavigne Mager

Credential MD

Sex Female

Practice address Elm and Carlton Streets, Buffalo, NY, 14263

Phone (716) 845-2300

Enumeration date Sep 13, 2011

Last updated in NPPES May 15, 2026

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207VX0201X Gynecologic Oncology Physician Allopathic & Osteopathic Physicians · License 279874 (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
279874	Other	NY	NYS LICENSE

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 Katherine Mager's NPI record?

Cross-check NPI 1376825646 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1376825646 active?

Yes, as of the latest NPPES snapshot, NPI 1376825646 is active (record last updated 2026-05-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-15.