NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Fairfield County Internal Medicine and Gastroenterology Associates PC

Specialist in Bridgeport, CT · enumerated 2006 · authorized official Alan Nelson, President.

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

National Provider Identifier

1003849423

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Fairfield County Internal Medicine and Gastroenterology Associates PC
Practice address 4641 Main St Ste 1, Bridgeport, CT, 06606
Fax (203) 371-7024
Enumeration date Jul 9, 2006
Last updated in NPPES Mar 27, 2018

Taxonomy & classification

174400000X Specialist Other Service Providers · License 015081 (CT) Secondary
174400000X Specialist Other Service Providers · License 014919 (CT) Primary
174400000X Specialist Other Service Providers · License 043139 (CT) Secondary
174400000X Specialist Other Service Providers · License 019537 (CT) Secondary

Authorized official

Name Alan Nelson
Title President

Other identifiers

Identifier Type State Issuer
001149194 Medicaid CT -
001431395 Medicaid CT -
001195379 Medicaid CT -
001150812 Medicaid CT -

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

Who is the authorized official for Fairfield County Internal Medicine and Gastroenterology Associates PC?
NPPES lists Alan Nelson (President) as the authorized official for this organization.
What is the NPI number for Fairfield County Internal Medicine and Gastroenterology Associates PC?
The NPI for Fairfield County Internal Medicine and Gastroenterology Associates PC is 1003849423, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-27.