HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / NY

BENJAMIN ERNST ONDERDONK, MD

RADIATION ONCOLOGY

Medical school: STATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY

Graduated: 2016

Offers telehealth

NPI: 1013370295

Practice Locations (4)

CLIFTON SPRINGS SANITARIUM CO

2 COULTER RD

CLIFTON SPRINGS, NY 144321122

3154625711

ROCHESTER GENERAL HOSPITAL

1425 PORTLAND AVE

ROCHESTER, NY 146213001

5859224000

ROCHESTER GENERAL HOSPITAL

1425 PORTLAND AVE

ROCHESTER, NY 146213011

5859224000

ROCHESTER GENERAL HOSPITAL

20 HAGEN DR

ROCHESTER, NY 146252666

5859229770

Source: CMS National Downloadable File, September 2026.

BENJAMIN ONDERDONK, MD | HealthCareAtlasUSA