Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

A-1 Internal Medicine LLC

Q: What is the NPI number for A-1 Internal Medicine LLC?

The NPI for A-1 Internal Medicine LLC is 1265845069, a Type 2 (organization) record in the CMS NPPES registry.

Internal Medicine Physician in Mandeville, LA · enumerated 2014 · authorized official Andrew Baier, Manager.

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

National Provider Identifier

1265845069

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name A-1 Internal Medicine LLC

Practice address 533 Carroll St, Mandeville, LA, 70448

Phone (985) 373-0058

Enumeration date Jun 9, 2014

Last updated in NPPES Oct 16, 2014

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD204287 (LA) Primary

Authorized official

Name Andrew Baier

Title Manager

Phone (985) 373-0058

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 A-1 Internal Medicine LLC?

NPPES lists Andrew Baier (Manager) as the authorized official for this organization.

What is the NPI number for A-1 Internal Medicine LLC?

The NPI for A-1 Internal Medicine LLC is 1265845069, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-16.