Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John A Maddoux, PHD

Q: What is the NPI number for John Maddoux?

The National Provider Identifier (NPI) for John Maddoux is 1386159705, a Type 1 (individual) record in the CMS NPPES registry.

Psychologist in San Antonio, TX · enumerated 2017.

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

National Provider Identifier

1386159705

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. John A Maddoux

Credential PHD

Sex Male

Practice address 4100 E Piedras Dr Ste 165, San Antonio, TX, 78228

Phone (210) 705-5060

Enumeration date Dec 7, 2017

Last updated in NPPES Mar 18, 2025

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 2017042123 (MO) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 37699 (TX) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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

Where does John Maddoux practice?

The practice location on file with NPPES is in San Antonio, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Maddoux?

The National Provider Identifier (NPI) for John Maddoux is 1386159705, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Ricardo Alvarado Pain Medicine Physician · San Antonio, TX NPI 1497935456 R A Alvarado Medical Pllc Interventional Pain Medicine Physician · San Antonio, TX NPI 1992117717 Msk Billing Solutions LLC Interventional Pain Medicine Physician · San Antonio, TX NPI 1912466384 Advanced Perioperative Services Anesthesiologist Assistant · San Antonio, TX NPI 1295350569 Advanced Anesthesia Consultants Anesthesiology Physician · San Antonio, TX NPI 1669097929 Advanced Anesthesia Services Pain Medicine (Anesthesiology) Physician · San Antonio, TX NPI 1376168641

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-18.