Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Benjamin Ernst Onderdonk, MD

Individual provider Radiation Oncology Physician · NPI 1013370295

Dr. Benjamin Ernst Onderdonk, MD is a Radiation Oncology in Rochester, New York. Graduated from State University of Ny Upstate Medical University in 2016, 10 years ago. Practices with Rochester General Hospital, a 1,197-clinician group, works from 5 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois and New York.

Years since qualifying
10
Trained at
State University of Ny Upstate Medical University
Licensed in
IL, NY
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1425 Portland Ave
Rochester, NY 14621-3011
Phone: (585) 922-4031
Fax: (585) 922-2971
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 127 North St, Batavia, NY 14020-1631 — (585) 344-5225
  • 2 Coulter Rd Ste 2615, Clifton Springs, NY 14432-1122 — (315) 462-5711
  • 20 Hagen Dr Ste 100, Rochester, NY 14625-2665 — (585) 922-4031
  • 1561 Long Pond Rd, Rochester, NY 14626-4117 — (585) 922-4031

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 309314 (NY)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 125.069772 (IL)

Record details

NPI number1013370295
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 4, 2016
Last updated in NPPESJuly 2, 2021
Certification dateJuly 2, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRADIATION ONCOLOGY
Medical schoolSTATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY
Graduated 2016 (10 years in practice)
Group practice Rochester General Hospital — 1197 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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