NPPES file of Aug 9, 2026

Diana Villarreal, MD

Psychiatry Physician · Houston, TX

Diana Villarreal, MD is a psychiatry physician with a practice address in Houston, Texas, and NPI 1184734626, issued on Aug 30, 2006. Check the license (Texas G0239, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184734626
Name
Diana Villarreal
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G0239 TX
Self-reported in NPPES; status is on the state search
Practice location
2627 Caroline St, Houston, TX 77004
Phone
(713) 970-7000
Enumerated
Aug 30, 2006
Record last updated
Mar 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20091110000615); accepts Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 1981
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2627 Caroline St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Geoffrey Ball, LCDCAddiction (Substance Use Disorder) Counselor1316703440
  2. Kelly Boothe, LCSWClinical Social Worker1851904841
  3. Angela Cain, PMHNP-BCPsychiatric/Mental Health Clinical Nurse Specialist1457935314
  4. Kenya Foster, LPCProfessional Counselor1104485101
  5. Amie Idicula, LPC, M.A.Mental Health Counselor1649729641
  6. Joseph PenneseClinical Social Worker1477663334

Verify Diana Villarreal in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license G0239
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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94% fewer Medicare Part D claims than the average psychiatry physician in 2024

55 Medicare Part D claims for 17 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Diana Villarreal55
  2. Specialty average1,000

Most prescribed

  1. Duloxetine Hcl13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 85.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score71.7
  2. Costout of 100 · 30%87.6
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. The Harris Center For Mental Health And IddHouston, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Diana Villarreal among 3,318 psychiatry physician records in Texas

Diana Villarreal, MD is one of 3,318 psychiatry physician records with a practice address in Texas. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 65% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated1981 · median 2006 among the 1,481 with a school on file
  • Record last updated2020 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Texas

There are 3,318 psychiatry physician records in Texas.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Linesse Vega, M.D.Houston, TX 770041114105897
  2. Jia Wang, M.D.Houston, TX 770041841511359
  3. Nicke Blackburn, M.D.Houston, TX 770051932367455
  4. Kathleen Gallentine, MDHouston, TX 770051184623498
  5. Arjun Karkhanis, M.D.Houston, TX 770051336465806
  6. Don Lagrone, M.D.Houston, TX 770051255402087
  7. Jacqueline McGregor, M.D.Houston, TX 770051831308865
  8. Susan Meixner, M.D.Houston, TX 770051912122177

Common questions

What is Diana Villarreal, MD's NPI number?

Diana Villarreal, MD's National Provider Identifier (NPI) is 1184734626, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Diana Villarreal, MD located?

The NPPES record lists a practice address at 2627 Caroline St, Houston, TX, 77004. Phone: (713) 970-7000. Providers update this record themselves, so call before visiting.

How can I verify Diana Villarreal, MD's license?

NPPES lists Texas license number G0239, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Diana Villarreal, MD prescribe under Medicare Part D?

In 2024, Diana Villarreal, MD had 55 Medicare Part D claims for 17 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Diana Villarreal, MD's MIPS final score?

The 2023 MIPS final score is 85.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.