Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Landrum-Chester Ob/Gyn Associates

Q: What is the NPI number for Landrum-Chester Ob/Gyn Associates?

The NPI for Landrum-Chester Ob/Gyn Associates is 1003899576, a Type 2 (organization) record in the CMS NPPES registry.

Gynecology Physician in Mcallen, TX · enumerated 2005 · authorized official James Biddle, President.

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

National Provider Identifier

1003899576

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Registry record

Entity type Organization (Type 2)

Legal business name Landrum-Chester Ob/Gyn Associates

Practice address 222 East Ridge Rd, Ste 216, Mcallen, TX, 78503

Phone (956) 686-6588

Fax (956) 682-0759

Enumeration date Nov 29, 2005

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License E6236 (TX) Primary

Authorized official

Name James Biddle

Title President

Phone (956) 686-6588

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

What is the NPI number for Landrum-Chester Ob/Gyn Associates?

The NPI for Landrum-Chester Ob/Gyn Associates is 1003899576, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Landrum-Chester Ob/Gyn Associates?

NPPES lists James Biddle (President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.