NPPES file of Aug 9, 2026

Mark David Bonnen, M.D.

Radiation Oncology Physician · San Antonio, TX

Mark David Bonnen, M.D. is a radiation oncology physician with a practice address in San Antonio, Texas, and NPI 1215962287, issued on Jul 11, 2006. Check the license (Texas L7985, 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
1215962287
Name
Mark David Bonnen
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
L7985 TX
Self-reported in NPPES; status is on the state search
Practice location
7979 Wurzbach RD, San Antonio, TX 78229
Phone
(210) 450-1016
Enumerated
Jul 11, 2006
Record last updated
Feb 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
174483109 TX
Medicare enrollment
Enrolled (PECOS I20250625001002); accepts Medicare assignment
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 7979 Wurzbach RD

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

  1. Christina Agyin, APRN-BC FNPFamily Nurse Practitioner1386831386
  2. Brittany Altermatt, ANPAdult Health Nurse Practitioner1902939358
  3. Elise Alvarez, MS, GCGenetic Counselor (M.S.)1609691005
  4. Shammi Anholt, PTPhysical Therapist1821745712
  5. Athanassios Argiris, MDHematology & Oncology Physician1174608509
  6. Sukeshi Arora, MDMedical Oncology Physician1386805604

Verify Mark David Bonnen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L7985
    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

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90% fewer Medicare Part D claims than the average radiation oncology physician in 2024

14 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.

  1. Mark Bonnen14
  2. Specialty average134

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. Pratt Radiation Oncology Associates IncBoston, MA

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

Mark David Bonnen among 449 radiation oncology physician records in Texas

Mark David Bonnen, M.D. is one of 449 radiation oncology physician records with a practice address in Texas. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 52% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated1999 · median 2004 among the 348 with a school on file
  • Record last updated2020 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Texas

There are 449 radiation oncology physician records in Texas.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Ardow Ameduri, M.D.San Antonio, TX 782291861412348
  2. Keith Eyre, M.D.San Antonio, TX 782291841223351
  3. Mohamad Fakhreddine, M.D.San Antonio, TX 782291790128783
  4. Eva Galvan, M.D.San Antonio, TX 782291275910390
  5. Chul Ha, M.D.San Antonio, TX 782291891894705
  6. William Jones, MDSan Antonio, TX 782291952583148
  7. Gary Lewis, MDSan Antonio, TX 782291831509330
  8. Ying Li, MDSan Antonio, TX 782291235398371

Common questions

What is Mark David Bonnen, M.D.'s NPI number?

Mark David Bonnen, M.D.'s National Provider Identifier (NPI) is 1215962287, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark David Bonnen, M.D. located?

The NPPES record lists a practice address at 7979 Wurzbach RD, San Antonio, TX, 78229. Phone: (210) 450-1016. Providers update this record themselves, so call before visiting.

How can I verify Mark David Bonnen, M.D.'s license?

NPPES lists Texas license number L7985, 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 Mark David Bonnen, M.D. prescribe under Medicare Part D?

In 2024, Mark David Bonnen, M.D. had 14 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. 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.