Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Thomas P Mcgahan, M.D.

Gastroenterology Physician in Atlanta, GA · enumerated 2006.

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

National Provider Identifier

1861455487

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas P Mcgahan

Credential M.D.

Sex Male

Practice address Atlanta, GA, 30342

Phone (404) 255-4333

Fax (404) 255-0601

Enumeration date Apr 7, 2006

Last updated in NPPES May 7, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 033861 (GA) 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
00606515B	Medicaid	GA	-

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 1861455487 active?

Yes, as of the latest NPPES snapshot, NPI 1861455487 is active (record last updated 2010-05-07).

How do I verify Thomas Mcgahan's NPI record?

Cross-check NPI 1861455487 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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William Jacobs Cardiovascular Disease Physician · Atlanta, GA NPI 1174528384 Stephen Frohwein Cardiovascular Disease Physician · Atlanta, GA NPI 1235138942 Bobb Cucher Internal Medicine Physician · Atlanta,, GA NPI 1003803347 Amanda Goldner Physician Assistant · Atlanta, GA NPI 1467439851 Andrea Mcintosh Physician Assistant · Atlanta, GA NPI 1750369021 Michael Clark Vascular Surgery Physician · Atlanta, GA NPI 1528028925 Metro Atlanta Endoscopy LLC Endoscopy Clinic/Center · Atlanta, GA NPI 1487617916 Kelly Carson Gastroenterology Physician · Atlanta, GA NPI 1801859327

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-07.