Dr. John A Maddoux , PhD
Psychologist • San Antonio, TX
Professional Overview & Biography Verified Profile Summary
Dr. John Maddoux, PhD is a certified Psychologist practicing in San Antonio, TX. With approximately 10 years of clinical experience since completing medical education in 2016, Dr. Maddoux delivers high-quality medical care to the local community at 4100 E PIEDRAS DR STE 165.
Dr. Maddoux maintains professional affiliations with Center For Psychological Services, Pllc, R A Alvarado Medical Pllc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.
Frequently performed procedures and clinical services include psychotherapy, psychiatric diagnostic evaluation. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
4100 E Piedras Dr Ste 165
San Antonio, TX 782282502
Medicare Profile & Education
Other
2016
✓ Accepts Assignment
Telehealth Services Available
Specialty Benchmarks & Practice Insights
Comparative analytics for Psychologist in San Antonio, TX
Practicing in San Antonio, TX (2266 Statewide)
✓ Offers Virtual Consultations
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
90837
Psychotherapy, 60 minutes
|
62 | 11 | $427.01 | $133.31 |
|
90791
Psychiatric diagnostic evaluation
|
14 | 14 | $544.09 | $138.73 |
Medical Specialties & State Licenses
CMS Verified: 2025-03-18NUCC Taxonomy Code: 103T00000X
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.
NUCC Taxonomy Code: 103T00000X
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.
Hospital & Practice Group Affiliations
Center For Psychological Services, Pllc
6043 W Interstate 20, Arlington, TX 760171042
Phone: 8175330825
R A Alvarado Medical Pllc
4100 E Piedras Dr, San Antonio, TX 782282502
Phone: 2109106653
Secondary Practice Locations
6076 W Poly Webb Rd # 6043
Arlington, TX 76016
Phone: 8175330825
7901 Metropolis Dr
Austin, TX 787443111
Phone: 5128234000
2833 Babcock Rd Ste 435
San Antonio, TX 782294850
Phone: 2107055060
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
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Physician Assistant
Physician Assistant (Certified)
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Podiatrist
Doctor of Podiatric Medicine
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 4100 E PIEDRAS DR STE 165, SAN ANTONIO, TX 782282502 (Tel: 2107055060)
Registered at 7901 METROPOLIS DR, AUSTIN, TX 787443111 (Tel: 5127397332)
Registered at 7901 METROPOLIS DR, AUSTIN, TX 787443111 (Tel: 5128234000)
Registered at 4904 BONNEVILLE BND, AUSTIN, TX 787445430 (Tel: 4695566586)
NPI status registered as active in NPPES database
Registered at 800 HOSPITAL DR, COLUMBIA, MO 652015275 (Tel: 5738146000)
Registered at 800 HOSPITAL DR, COLUMBIA, MO 652015275
Recorded as JOHN MADDOUX, PHD
Psychologist (License #2017042123 in MO)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
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NPI Administrative Meta
Mailing Address
7901 Metropolis Dr
Austin, TX 787443111
Phone: 5127397332
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.