Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John W Mcgrath, M.D.

Pediatrics Physician in Annapolis, MD · enumerated 2006.

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

National Provider Identifier

1023172160

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Registry record

Entity type Individual (Type 1)

Name John W Mcgrath

Credential M.D.

Sex Male

Practice address 200 Forbes St, Annapolis, MD, 21401

Phone (410) 263-6363

Fax (410) 263-4086

Enumeration date Dec 21, 2006

Last updated in NPPES Apr 13, 2011

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License D0066455 (MD) 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
D0066455	Other	MD	LICENSE STATE OF MD

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 John Mcgrath's NPI record?

Cross-check NPI 1023172160 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1023172160 active?

Yes, as of the latest NPPES snapshot, NPI 1023172160 is active (record last updated 2011-04-13).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-13.