Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

John Michael Brennan, MD, PA

Individual provider Psychiatry Physician · NPI 1336123173

John Michael Brennan, MD, PA is a Psychiatry in Dallas, Texas. Graduated from University of Texas Southwestern Medical School at Dallas in 1989, 37 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
37
Trained at
University of Texas Southwestern Medical School at Dallas
Licensed in
TX
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

7557 Rambler Rd Ste 565
Dallas, TX 75231-2373
Phone: (214) 824-2273
Fax: (214) 826-9340
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence J3750 (TX)

Record details

NPI number1336123173
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PA
Sole proprietorYes
NPI enumeratedDecember 5, 2005
Last updated in NPPESDecember 2, 2025
Certification dateDecember 2, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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