NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Thomas J. Demarco

Gastroenterology Physician in Smyrna, GA · enumerated 2007 · authorized official Thomas Demarco, M.D., Owner.

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

National Provider Identifier

1922295617

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Thomas J. Demarco
Practice address 3969 S Cobb Dr Se Ste 202, Smyrna, GA, 30080
Phone (770) 432-5326
Fax (770) 432-5740
Enumeration date Sep 27, 2007
Last updated in NPPES Jun 15, 2019

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 32718 (GA) Primary

Authorized official

Name Thomas Demarco, M.D.
Title Owner
Phone (770) 432-5326

Other identifiers

Identifier Type State Issuer
10BDBCW Other GA MEDICARE PROVIDER NUMBER
GRP4756 Other GA GROUP NUMBER

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 current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2019-06-15. Verify at npiregistry.cms.hhs.gov.
Where is Thomas J. Demarco located?
The practice location on file with NPPES is in Smyrna, GA.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-15.