MARK DAVID BONNEN M.D.
NPI 1215962287
Radiology - Radiation Oncology in San Antonio, TX
About Mark David Bonnen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK DAVID BONNEN M.D. (NPI 1215962287) is an individual radiation oncology provider in San Antonio, Texas, licensed in Texas (L7985) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Tufts Medical Center, and is a graduate of Other (1999).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mark David Bonnen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Mark Bonnen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 2,397 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,296 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,554 clinicians in this Medicare group
Boston, MA 02111
- Reassigned Medicare billing, Massachusetts enrollment
- 11 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 13
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Tufts Medical Center
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78229 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN ANTONIO, TX 78229
SAN ANTONIO, TX 78229
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mark Bonnen's NPI number?
The NPI number for Mark Bonnen is 1215962287. It was assigned to this individual provider in the NPPES registry on July 11, 2006.
Where is Mark Bonnen located?
Mark Bonnen practices at 7979 Wurzbach Rd, San Antonio, TX 78229. The listed phone number is (210) 450-1016.
What is Mark Bonnen's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Mark Bonnen enrolled in Medicare?
Yes. Mark Bonnen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mark Bonnen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Bonnen reassigns Medicare benefits to 4 organizations: University Of Texas Health Science Center At San Antonio (San Antonio, TX), Baylor College Of Medicine (Houston, TX), Baylor College Of Medicine (Houston, TX) and Pratt Radiation Oncology Associates Inc (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Bonnen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Bonnen accept?
Health plans from Antidote Health of TX and Blue Cross and Blue Shield of Texas list Mark Bonnen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Mark Bonnen affiliated with any hospitals?
According to CMS data, Mark Bonnen is affiliated with Tufts Medical Center.
When was this NPI record last updated?
The NPPES record for Mark Bonnen was last updated on February 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.