Lillianne Michelle Villarreal, MD
Internal Medicine Physician · Austin, TX
Lillianne Michelle Villarreal, MD is an internal medicine physician with a practice address in Austin, Texas, and NPI 1144915505, issued on Apr 10, 2023. Check the license (Texas W3891, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Lillianne Michelle Villarreal
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- W3891 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Red River St, Austin, TX 78701
- Phone
- (512) 324-7000
- Enumerated
- Apr 10, 2023
- Record last updated
- May 5, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1500 Red River St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lillianne Michelle Villarreal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license W3891Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
201 Medicare Part D claims for 57 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium16 claims
- Gabapentin13 claims
- Amlodipine Besylate12 claims
- Lisinopril12 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.
Industry payments in 2024: $141.77
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Lillianne Michelle Villarreal among 9,175 internal medicine physician records in Texas
Lillianne Michelle Villarreal, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 95% of them.
- NPI issued2023 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2026 · 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 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
606 internal medicine physician records list a practice address in Austin
They are 606 of the 26,585 NPPES records with a practice address in Austin, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Austin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Swati Avashia, M.D.Austin, TX 787011740291319
- Teresa Coats, M.D.Austin, TX 787011992889844
- Jadranko Corak, M.D.Austin, TX 787011801960364
- Arshad Ghauri, M.D.Austin, TX 787011699849125
- Mark Hernandez, M.D.Austin, TX 787011093783490
- Celina Mankey, MDAustin, TX 787011427048149
- Tahir Mian, M.D.Austin, TX 787011679517015
- Lysbeth Miller, M.D.Austin, TX 787011285708305
Common questions
What is Lillianne Michelle Villarreal, MD's NPI number?
Lillianne Michelle Villarreal, MD's National Provider Identifier (NPI) is 1144915505, issued on Apr 10, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Lillianne Michelle Villarreal, MD located?
The NPPES record lists a practice address at 1500 Red River St, Austin, TX, 78701. Phone: (512) 324-7000. Providers update this record themselves, so call before visiting.
How can I verify Lillianne Michelle Villarreal, MD's license?
NPPES lists Texas license number W3891, 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 Lillianne Michelle Villarreal, MD prescribe under Medicare Part D?
In 2024, Lillianne Michelle Villarreal, MD had 201 Medicare Part D claims for 57 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.