Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John F Nielsen M D Family Medicine PA

Family Medicine Physician in Carthage, TX · enumerated 2007 · authorized official John Nielsen, President.

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

National Provider Identifier

1003006065

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Registry record

Entity type Organization (Type 2)

Legal business name John F Nielsen M D Family Medicine PA

Practice address 702 Davis St Ste 4, Carthage, TX, 75633

Phone (903) 694-4991

Fax (903) 694-4995

Enumeration date Jul 26, 2007

Last updated in NPPES Oct 19, 2010

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License J8333 (TX) Primary

Authorized official

Name John Nielsen

Title President

Phone (903) 694-4991

Other identifiers

Identifier	Type	State	Issuer
160376301	Medicaid	TX	-
0052JK	Other	TX	BLUE CROSS

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 2010-10-19. Verify at npiregistry.cms.hhs.gov.

Where is John F Nielsen M D Family Medicine PA located?

The practice location on file with NPPES is in Carthage, TX.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-19.