NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Alliance Physicians Group of Texas, Pllc

Internal Medicine Physician in Nederland, TX · enumerated 2007 · authorized official Michael Mcmahon, Managing Board Member/Physician.

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

National Provider Identifier

1063609261

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Alliance Physicians Group of Texas, Pllc
Practice address 2210 Highway 365, Nederland, TX, 77627
Fax (409) 729-1500
Enumeration date Oct 2, 2007
Last updated in NPPES Oct 2, 2007

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License K0347 (TX) Primary

Authorized official

Name Michael Mcmahon
Title Managing Board Member/Physician

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 Alliance Physicians Group of Texas, Pllc?
NPPES lists Michael Mcmahon (Managing Board Member/Physician) as the authorized official for this organization.
What is the NPI number for Alliance Physicians Group of Texas, Pllc?
The NPI for Alliance Physicians Group of Texas, Pllc is 1063609261, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-02.