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J. MICHAEL BRENNAN, M.D., P.A.
NPI 1669661799
Psychiatry & Neurology - Psychiatry in Dallas, TX

Active since October 15, 2007
7557 RAMBLER RD STE 565, DALLAS, TX 75231(214) 824-2273(214) 826-9340 Get Directions Write a Review

NPPES record last updated: December 15, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 15, 2025, Dec 8, 2025 (2 updates tracked since 2025).

About J. Michael Brennan, M.d., P.a. NPPES

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

J. MICHAEL BRENNAN, M.D., P.A. (NPI 1669661799) is a healthcare organization registered as a psychiatry in Dallas, Texas and active in the NPI registry since October 2007. The organization lists Sanjuanita Hatter, Administrative Assistant, as its authorized official.

NPPES Registry Identity

NPI1669661799
Entity TypeOrganization
Primary Taxonomy2084P0800X
Legal Business NameJ. MICHAEL BRENNAN, M.D., P.A.
Location Address7557 RAMBLER RD STE 565Dallas, TX 75231-2373
Mailing Address7557 Rambler Rd Ste 565Dallas, TX 75231-2373 · (214) 824-2273 · Fax (214) 826-9340
Phone(214) 824-2273
Fax(214) 826-9340
Organization SubpartNo
Authorized OfficialSanjuanita HatterAdministrative Assistant · (214) 824-2273
Enumeration DateOctober 15, 2007
Last NPPES UpdateDecember 15, 20252 updates tracked since enumeration
NPPES CertifiedDecember 15, 2025
✔ NPI 1669661799 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in TX · J3750
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
7557 RAMBLER RD STE 565, Dallas, TX 75231
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Other Identifiers 3

Other00T03BTX · Bcbs-tx
Medicaid0359267-01TX
Other4480010TX · Aetna

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES

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

JOHN MICHAEL BRENNAN M.D, P.A.
Psychiatry & Neurology (Psychiatry)
7557 RAMBLER RD STE 565
DALLAS, TX 75231
Dallas County (214) 824-2273

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 J. Michael Brennan, M.D., P.A.'s NPI number?

The NPI number for J. Michael Brennan, M.D., P.A. is 1669661799. It was assigned to this organization in the NPPES registry on October 15, 2007.

Where is J. Michael Brennan, M.D., P.A. located?

J. Michael Brennan, M.D., P.A. is located at 7557 Rambler Rd Ste 565, Dallas, TX 75231. The listed phone number is (214) 824-2273.

What is J. Michael Brennan, M.D., P.A.'s specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for J. Michael Brennan, M.D., P.A. was last updated on December 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.