Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gary B Brennan, M.D.

Diagnostic Radiology Physician in Beachwood, OH · enumerated 2006.

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

National Provider Identifier

1194818484

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Registry record

Entity type Individual (Type 1)

Name Gary B Brennan

Credential M.D.

Sex Male

Practice address 23625 Commerce Park Dr Suite 204, Beachwood, OH, 44122

Phone (216) 255-5700

Enumeration date Oct 2, 2006

Last updated in NPPES Dec 4, 2013

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 35086925 (OH) Primary

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License 35-86925 (OH) Secondary

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

How do I verify Gary Brennan's NPI record?

Cross-check NPI 1194818484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1194818484 active?

Yes, as of the latest NPPES snapshot, NPI 1194818484 is active (record last updated 2013-12-04).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-04.