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Ob-Gyn Associates of Waco, P.A.

Obstetrics & Gynecology Physician in Waco, TX · enumerated 2009 · authorized official Joel Rister, Doctor Coowner.

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

National Provider Identifier

1538308507

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Registry record

Entity type Organization (Type 2)
Legal business name Ob-Gyn Associates of Waco, P.A.
Practice address 2501 Ambassador Dr, Waco, TX, 76712
Phone (254) 752-4395
Fax (254) 752-7343
Enumeration date Feb 13, 2009
Last updated in NPPES Feb 13, 2009

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License G3732 (TX) Primary

Authorized official

Name Joel Rister
Title Doctor Coowner
Phone (254) 752-4395

Other identifiers

Identifier Type State Issuer
097556702 Medicaid TX -
099097002 Medicaid TX -

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.

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Frequently asked questions

Who is the authorized official for Ob-Gyn Associates of Waco, P.A.?
NPPES lists Joel Rister (Doctor Coowner) as the authorized official for this organization.
What is the NPI number for Ob-Gyn Associates of Waco, P.A.?
The NPI for Ob-Gyn Associates of Waco, P.A. is 1538308507, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-13.