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

Diana Villarreal, MD

Individual provider Psychiatry Physician · NPI 1184734626

Diana Villarreal, MD practises Psychiatry in Houston, Texas. Graduated from University of Texas Medical Branch at Galveston in 1981, 45 years ago. Practices with The Harris Center for Mental Health and Idd, a 127-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
45
Trained at
University of Texas Medical Branch at Galveston
Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2627 Caroline St
Houston, TX 77004-1114
Phone: (713) 970-7000
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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 G0239 (TX)

Record details

NPI number1184734626
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESMarch 30, 2020
Certification dateMarch 30, 2020

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduated 1981 (45 years in practice)
Group practice The Harris Center For Mental Health And Idd — 127 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at The Harris Center for Mental Health and Idd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 127 clinicians in the practice; 12 are shown here.

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