Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gerald Roland Winnan, M.D.

Legal Medicine in Frederick, MD · enumerated 2005 · practices at Cardiology Center LLP.

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

National Provider Identifier

1629071139

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Registry record

Entity type Individual (Type 1)

Name Dr. Gerald Roland Winnan

Credential M.D.

Sex Male

Practice address 310 W Ninth St, Frederick, MD, 21701

Phone (301) 695-6800

Fax (301) 695-6891

Enumeration date May 30, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

173000000X Legal Medicine Other Service Providers · License D0025151 (MD) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1629071139 active?

Yes, as of the latest NPPES snapshot, NPI 1629071139 is active (record last updated 2007-07-08).

How do I verify Gerald Winnan's NPI record?

Cross-check NPI 1629071139 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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