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Radiation Oncology

Michael F. Gensheimer, MD

Works at hospitals in Stanford, CA · Pleasanton, CA · California

Summary

Dr. Michael F. Gensheimer, MD is a radiation oncologist at 300 Pasteur Dr, Stanford, CA 94305. Phone: (650) 723-4000. Accepts Medicare assignment. In 2024, Michael F. Gensheimer had 189 Original Medicare patients and 1,295 services. NPI 1407172687. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Radiation oncologist (Medicare lists Radiation Oncology)
  • Address: 300 Pasteur Dr, Stanford, CA 94305 · Directions (1 more location)
  • Phone: (650) 723‑4000
  • Medicare: Accepts Medicare assignment
  • Hospitals: Stanford Health Care, Stanford Health Care Tri-Valley
  • Group practice: Stanford Health Care
  • Medical school: Vanderbilt University School Of Medicine · graduated 2010 (16 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Michael F. Gensheimer, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Michael F. Gensheimer accept Medicare assignment?
Yes. Medicare's clinician data says Michael F. Gensheimer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Michael F. Gensheimer see?
In 2024, CMS data shows 189 Original Medicare patients and 1,295 services for Michael F. Gensheimer. This counts Original Medicare only and measures volume, not quality.
What is Michael F. Gensheimer's NPI number?
1407172687. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Michael F. Gensheimer, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients189
Services billed to Medicare1,295
Different services or procedures34
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Ct guidance for insertion of radiation therapy fields (77014)221 services
  2. Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)160 services
  3. Calculation of radiation therapy dose (77300)152 services
  4. Design and construction of complex radiation treatment device (77334)131 services
  5. Radiation treatment management, 5 treatment sessions (77427)105 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol72%
  • High blood pressure65%
  • Arthritis30%
  • Ischemic heart disease28%
  • Diabetes26%
  • Chronic kidney disease23%

Hospitals where Michael F. Gensheimer works

Medicare's Facility Affiliation Data lists Michael F. Gensheimer at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441
  • Stanford Health Care Tri-ValleyPleasanton, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050283

Practice locations

Addresses where Michael F. Gensheimer is enrolled with Medicare (CMS data updated October 2, 2026).

  • 300 Pasteur DrStanford, CA 94305 (650) 723‑4000
  • 5725 W Las Positas BlvdPleasanton, CA 94588

Group practices

Medicare enrollment lists Michael F. Gensheimer as a member of this group (CMS data updated October 2, 2026).

  • Stanford Health Care3,122 clinicians in the group

Specialties

Find other Radiation Oncology doctors in California →

Other radiation oncologists in Stanford

Clinicians with the same Medicare primary specialty in Stanford, CA — not a recommendation.

All radiation oncologists in Stanford →

Other clinicians in Stanford Health Care

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolVanderbilt University School Of Medicine
Graduation year2010 (16 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1407172687
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians