Diana Villarreal, MD - Medicare Psychiatry in Houston, TX

Diana Villarreal, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Houston, Texas. She went to University Of Texas Medical Branch At Galveston and graduated in 1981 and has 43 years of diverse experience with area of expertise as Psychiatry. She is a member of the group practice The Harris Center For Mental Health And Idd and her current practice location is 2627 Caroline St, Houston, Texas. You can reach out to her office (for appointments etc.) via phone at (713) 970-7000.

Diana Villarreal is licensed to practice in Texas (license number G0239) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1184734626.

Contact Information

Diana Villarreal, MD
2627 Caroline St,
Houston, TX 77004-1114
(713) 970-7000
Not Available

Map and Direction




Physician's Profile

Full NameDiana Villarreal
GenderFemale
SpecialityPsychiatry
Experience43 Years
Location2627 Caroline St, Houston, Texas
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Diana Villarreal attended and graduated from University Of Texas Medical Branch At Galveston in 1981
  NPI Data:
  • NPI Number: 1184734626
  • Provider Enumeration Date: 08/30/2006
  • Last Update Date: 03/30/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 4183762289
  • Enrollment ID: I20091110000615

Medical Identifiers

Medical identifiers for Diana Villarreal such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184734626NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry G0239 (Texas)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Harris Center For Mental Health And Idd9739088790114

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Diana Villarreal allows following entities to bill medicare on her behalf.
Entity NameThe Harris Center For Mental Health And Idd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346293156
PECOS PAC ID: 9739088790
Enrollment ID: O20040108000251

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Diana Villarreal is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Diana Villarreal, MD
2627 Caroline St,
Houston, TX 77004-1114

Ph: (713) 970-7000
Diana Villarreal, MD
2627 Caroline St,
Houston, TX 77004-1114

Ph: (713) 970-7000

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.