Diep Bui, M.D.
Epilepsy Physician · San Antonio, TX
Diep Bui, M.D. is an epilepsy physician with a practice address in San Antonio, Texas, and NPI 1649400359, issued on Jul 16, 2009. Check the license (Texas S6141, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Diep Bui
- Credential
- M.D.
- Primary taxonomy
- Epilepsy Physician 2084E0001X
- License number
- S6141 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4502 Medical Dr FL 10, San Antonio, TX 78229
- Phone
- (210) 743-0670
- Enumerated
- Jul 16, 2009
- Record last updated
- Oct 15, 2025
- Fax
- (210) 567-4659
- Medicaid ID
- 411686501 TX
- Medicare enrollment
- Enrolled (PECOS I20200611001563); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest epilepsy physician records → All 52 in Texas → Look up another NPI →
Also registered at 4502 Medical Dr FL 10
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lizza Hernandez, PNPPediatric Nurse Practitioner1174998983
- Michael Palm, M.D.Neurology Physician1891756672
- Andres Saenz, MDNeurology Physician1205327699
Verify Diep Bui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license S6141Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average epilepsy physician in 2024
759 Medicare Part D claims for 158 beneficiaries, against an average of 934 among the 476 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Levetiracetam142 claims
- Lamotrigine78 claims
- Lacosamide62 claims
- Xcopri58 claims
- Levetiracetam Er41 claims
- Vimpat28 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: $569.48
20 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 345 providers of this specialty with any payment received $6,278.39 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
- University OF Texas Health Science Center AT San AntonioSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diep Bui among 52 epilepsy physician records in Texas
Diep Bui, M.D. is one of 52 epilepsy physician records with a practice address in Texas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 27% of them.
- NPI issued2009 · 27% of these records are older, 63% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2004 · median 2011 among the 37 with a school on file
- Record last updated2025 · 0% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084E0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Epilepsy Physician providers in Texas
There are 52 epilepsy physician records in Texas.
All 52 in Texas → Every provider in San Antonio → Epilepsy Physician nationwide →
The 8 epilepsy physician records with the nearest ZIP codes
- Sreekanth Koneru, M.DSan Antonio, TX 782291790940229
- Linda Leary, M.D.San Antonio, TX 782291669564118
- Octavian Lie, MDSan Antonio, TX 782291053569301
- Lola Morgan, M.D.San Antonio, TX 782291487682100
- Lauren Skalomenos, MDSan Antonio, TX 782291417445800
- Charles Szabo, MDSan Antonio, TX 782291548277866
- Gustavo Charria-Ortiz, MDSan Antonio, TX 782071326003237
- Leonel Estofan, MDEdinburg, TX 785391417339409
Common questions
What is Diep Bui, M.D.'s NPI number?
Diep Bui, M.D.'s National Provider Identifier (NPI) is 1649400359, issued on Jul 16, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Diep Bui, M.D. located?
The NPPES record lists a practice address at 4502 Medical Dr FL 10, San Antonio, TX, 78229. Phone: (210) 743-0670. Providers update this record themselves, so call before visiting.
How can I verify Diep Bui, M.D.'s license?
NPPES lists Texas license number S6141, 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 Diep Bui, M.D. prescribe under Medicare Part D?
In 2024, Diep Bui, M.D. had 759 Medicare Part D claims for 158 beneficiaries; the average among epilepsy physician prescribers was 934. 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.