John F. Villacis, MD
Allergy Physician · Austin, TX
John F. Villacis, MD is an allergy physician with a practice address in Austin, Texas, and NPI 1437115888, issued on Apr 25, 2006. Check the license (Texas L8548, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John F. Villacis
- Credential
- MD
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- L8548 TX
Self-reported in NPPES; status is on the state search - Practice location
- 12221 N Mopac Expy, Austin, TX 78758
- Phone
- (512) 901-4002
- Enumerated
- Apr 25, 2006
- Record last updated
- Feb 9, 2022
- Fax
- (512) 901-3902
- Medicaid ID
- 165659701 TX
- Medicare enrollment
- Enrolled (PECOS I20040611001181); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 12221 N Mopac Expy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Juine Abraham, RN., NP-CFamily Nurse Practitioner1194095133
- Farrah Alahmady, AAAnesthesiologist Assistant1083198014
- Fernanda AlmeidaRegistered Dietitian1487009775
- Mirjana Antelj-RojasFamily Nurse Practitioner1548712946
- Pamela Ashley, MDEmergency Medicine Physician1780630889
- Antoinette Austin-Glass, MDAnesthesiology Physician1790723138
Verify John F. Villacis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L8548Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average allergy physician in 2024
518 Medicare Part D claims for 122 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Albuterol Sulfate Hfa54 claims
- Azelastine Hcl52 claims
- Ipratropium Bromide47 claims
- Prednisone46 claims
- Montelukast Sodium43 claims
- Breo Ellipta29 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: $2,947.80
68 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 502 providers of this specialty with any payment received $9,080.33 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.
Bills Medicare through one group practice
- The Austin Diagnostic Clinic PLLCAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allergy Physician providers in Texas
There are 76 allergy physician records in Texas.
Other allergy physician records in Texas
- Stuart Abramson, M.D.San Angelo, TX1710984893
- Sasha Alvarado, D.O.Murphy, TX1417377839
- Sheila Amar, M.D.Georgetown, TX1003962689
- Aneesh Angirekula, MDHouston, TX1770046146
- Susan Bailey, M.D.Fort Worth, TX1396722583
- Shahid Bangash, M.D.Brownsville, TX1235204082
- Suzanne Beck, M.D.Lubbock, TX1861597973
- Vasudeva Bommanna, MDNacogdoches, TX1477594836
- Erin Clarke, MDDallas, TX1285843599
- Renee Clary, PA-CBellaire, TX1841474459
Common questions
What is John F. Villacis, MD's NPI number?
John F. Villacis, MD's National Provider Identifier (NPI) is 1437115888, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John F. Villacis, MD located?
The NPPES record lists a practice address at 12221 N Mopac Expy, Austin, TX, 78758. Phone: (512) 901-4002. Providers update this record themselves, so call before visiting.
How can I verify John F. Villacis, MD's license?
NPPES lists Texas license number L8548, 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 John F. Villacis, MD prescribe under Medicare Part D?
In 2024, John F. Villacis, MD had 518 Medicare Part D claims for 122 beneficiaries; the average among allergy physician prescribers was 750. 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.