NPPES file of Aug 9, 2026

Donald Wayne Aga, MD

Internal Medicine Physician · Houston, TX

Donald Wayne Aga, MD is an internal medicine physician with a practice address in Houston, Texas, and NPI 1093749103, issued on Jul 11, 2006. Check the license (Texas J9460, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093749103
Name
Donald Wayne Aga
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
J9460 TX
Self-reported in NPPES; status is on the state search
Practice location
2727 W Holcombe Blvd, Houston, TX 77025
Phone
(713) 442-0000
Enumerated
Jul 11, 2006
Record last updated
Mar 29, 2023
Medicaid IDs
106349702 TX
106349707 TX
106349704 TX
Medicare enrollment
Enrolled (PECOS I20040504001421); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 1994
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 2727 W Holcombe Blvd

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

  1. Kanza Abbas, M.D.Hematology & Oncology Physician1396065934
  2. Lena Abraham, CRNACertified Registered Nurse Anesthetist1780003053
  3. Amy AcostaPharmacist1154786838
  4. George Adesina, M.D.Cardiovascular Disease Physician1457642647
  5. Fayyaz Ahmed, MDRheumatology Physician1669435996
  6. Ali Al-Himyary, MDPulmonary Disease Physician1033149810

Verify Donald Wayne Aga in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license J9460
    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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Most of these Medicare Part D claims are vaccines, 74% of the cost of the top drugs

5,749 Medicare Part D claims for 890 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 46 claims were for opioids.

  1. Donald Aga5,749
  2. Specialty average3,176

Most prescribed

Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.

  1. Atorvastatin Calcium573 claims
  2. Abrysvo311 claims
  3. Amlodipine Besylate265 claims
  4. Losartan Potassium210 claims
  5. Shingrix210 claims
  6. Levothyroxine Sodium203 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.

Bills Medicare through one group practice

  1. Kelsey-Seybold Medical Group, PLLCHouston, TX

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

1,488 internal medicine physician records list a practice address in Houston

They are 1,488 of the 61,221 NPPES records with a practice address in Houston, and 9,175 internal medicine physician records in Texas.

Other internal medicine physician records in Texas

  1. Muhammad A. Sattar, MDDallas, TX1760465553
  2. Gayatri Aaluri, MDGalveston, TX1821928508
  3. Anunaya AashishDenton, TX1134246374
  4. Queenie Ann Abad, M.D.San Antonio, TX1174979785
  5. Fuad Abaleka, M.DLubbock, TX1861925596
  6. Carol Abalihi, M.D.El Paso, TX1326136243
  7. Oliverio Abarca Guzman, MDHarlingen, TX1346972940
  8. Obinna Abaribe, M.DMansfield, TX1457704355
  9. Enyinnaya Abarikwu, MDTyler, TX1174788178
  10. Sulaiman Abawi, D.O.Frisco, TX1780845255

Common questions

What is Donald Wayne Aga, MD's NPI number?

Donald Wayne Aga, MD's National Provider Identifier (NPI) is 1093749103, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Donald Wayne Aga, MD located?

The NPPES record lists a practice address at 2727 W Holcombe Blvd, Houston, TX, 77025. Phone: (713) 442-0000. Providers update this record themselves, so call before visiting.

How can I verify Donald Wayne Aga, MD's license?

NPPES lists Texas license number J9460, 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 Donald Wayne Aga, MD prescribe under Medicare Part D?

In 2024, Donald Wayne Aga, MD had 5,749 Medicare Part D claims for 890 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.