NPPES file of Aug 9, 2026

Souleymane Yaya Diallo, D.O.

Gastroenterology Physician · San Antonio, TX

Souleymane Yaya Diallo, D.O. is a gastroenterology physician with a practice address in San Antonio, Texas, and NPI 1831534072, issued on May 1, 2013. Check the license (Texas Q8463, 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
1831534072
Name
Souleymane Yaya Diallo
Credential
D.O.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
Q8463 TX
Self-reported in NPPES; status is on the state search
Practice location
4502 Medical Dr, San Antonio, TX 78229
Phone
(210) 358-4000
Enumerated
May 1, 2013
Record last updated
Feb 15, 2022
Fax
(210) 567-1976
Medicaid ID
386653501 TX
Medicare enrollment
Enrolled (PECOS I20180620002654); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 4502 Medical Dr

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

  1. Aaron Abarbanell, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1245497809
  2. Ayham AbdelAnesthesiology Physician1467147496
  3. Ali Abedi, M.D.Pulmonary Disease Physician1346566312
  4. Jordan Abel, M.D.Infectious Disease Physician1417273301
  5. Aesha Aboueisha, MDHospitalist Physician1225527815
  6. Seena Abraham, MDFamily Medicine Physician1306338561

Verify Souleymane Yaya Diallo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license Q8463
    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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58% more Medicare Part D claims than the average gastroenterology physician in 2024

1,284 Medicare Part D claims for 301 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Souleymane Diallo1,284
  2. Specialty average811

Most prescribed

  1. Omeprazole227 claims
  2. Linzess111 claims
  3. Pantoprazole Sodium109 claims
  4. Famotidine107 claims
  5. Dicyclomine Hcl73 claims
  6. Colestipol Hcl64 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: $176.63

3 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Souleymane Diallo$176.63
  2. Specialty average$5,015.95

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

  1. 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).

Souleymane Yaya Diallo among 1,478 gastroenterology physician records in Texas

Souleymane Yaya Diallo, D.O. is one of 1,478 gastroenterology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 77% of them.

  • NPI issued2013 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2013 · median 2003 among the 1,175 with a school on file
  • Record last updated2022 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Texas

There are 1,478 gastroenterology physician records in Texas.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Prabhleen Chahal, M.D.San Antonio, TX 782291841265527
  2. Delbert Chumley, M.D.San Antonio, TX 782291740272962
  3. Sunil Dwivedi, M.D.San Antonio, TX 782291003854076
  4. Homero Garza, M.D.San Antonio, TX 782291609831353
  5. Fred Goldner, MDSan Antonio, TX 782291932193695
  6. Gary Gossen, M.D.San Antonio, TX 782291124091079
  7. Leon Kundrotas, MDSan Antonio, TX 782291447287743
  8. Gabriel Magraner, MDSan Antonio, TX 782291346279452

Common questions

What is Souleymane Yaya Diallo, D.O.'s NPI number?

Souleymane Yaya Diallo, D.O.'s National Provider Identifier (NPI) is 1831534072, issued on May 1, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Souleymane Yaya Diallo, D.O. located?

The NPPES record lists a practice address at 4502 Medical Dr, San Antonio, TX, 78229. Phone: (210) 358-4000. Providers update this record themselves, so call before visiting.

How can I verify Souleymane Yaya Diallo, D.O.'s license?

NPPES lists Texas license number Q8463, 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 Souleymane Yaya Diallo, D.O. prescribe under Medicare Part D?

In 2024, Souleymane Yaya Diallo, D.O. had 1,284 Medicare Part D claims for 301 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.