DR. JOHN A MADDOUX PHD
NPI 1386159705
Psychologist in San Antonio, TX

Active since December 07, 2017PECOS EnrolledAccepts Medicare Assignment
4100 E PIEDRAS DR STE 165, SAN ANTONIO, TX 78228(210) 705-5060 Get Directions Write a Review

NPPES record last updated: March 18, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 18, 2025, Mar 11, 2023, May 13, 2022 and 1 more (4 updates tracked since 2017).

About Dr. John A Maddoux Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN A MADDOUX PHD (NPI 1386159705) is an individual psychologist in San Antonio, Texas, licensed in Texas (37699) and active in the NPI registry since December 2017. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1386159705
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. JOHN A MADDOUXCredential: PHD
Location Address4100 E PIEDRAS DR STE 165San Antonio, TX 78228-2502
Mailing Address7901 Metropolis DrAustin, TX 78744-3111 · (512) 739-7332
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateDecember 7, 2017
Last NPPES UpdateMarch 18, 20254 updates tracked since enumeration
NPPES CertifiedMarch 18, 2025
NPI 1386159705 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
Licenses Licensed in TX · 37699 Licensed in MO · 2017042123
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
4100 E PIEDRAS DR STE 165, San Antonio, TX 78228

Secondary Practice Locations 3

Location 16076 W Poly Webb Rd # 6043Arlington, TX 76016 · Phone (817) 533-0825
Location 27901 Metropolis DrAustin, TX 78744-3111 · Phone (512) 823-4000
Location 32833 Babcock Rd Ste 435San Antonio, TX 78229-4850 · Phone (210) 705-5060

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. John A Maddoux Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4789921099
PECOS Enrollment IDI20190124002133
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
62 services11 patients
Psychiatric diagnostic evaluation 90791
A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.
14 services14 patients

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Anesthesiologist Assistant
4100 E PIEDRAS DR STE 165
SAN ANTONIO, TX 78228
Anesthesiology (Pain Medicine)
4100 E PIEDRAS DR STE 165
SAN ANTONIO, TX 78228
Pain Medicine (Pain Medicine)
4100 E PIEDRAS DR STE 165
SAN ANTONIO, TX 78228
Anesthesiology
4100 E PIEDRAS DR STE 165
SAN ANTONIO, TX 78228
Pain Medicine (Interventional Pain Medicine)
4100 E PIEDRAS DR STE 165
SAN ANTONIO, TX 78228
Pain Medicine (Interventional Pain Medicine)
4100 E PIEDRAS DR STE 165
SAN ANTONIO, TX 78228

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Maddoux's NPI number?

The NPI number for John Maddoux is 1386159705. It was assigned to this individual provider in the NPPES registry on December 7, 2017.

Where is John Maddoux located?

John Maddoux practices at 4100 E Piedras Dr Ste 165, San Antonio, TX 78228. The listed phone number is (210) 705-5060.

What is John Maddoux's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is John Maddoux enrolled in Medicare?

Yes. John Maddoux is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does John Maddoux accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 9 other insurers list John Maddoux as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John Maddoux was last updated on March 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.