Meet the Radiation Oncology Team
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Meet the Radiation Oncology Team

Jonathan H. Klein, MD

Radiation Oncology
Practice Specialty
Radiation Oncology (Cancer)
Medical Education
University of Western Ontario
University of Toronto
University of Toronto
Main Location
Montefiore Medical Center
111 East 210th Street
Bronx, NY 10467-2401
Phone: (718) 920-2750
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More Locations Show More Locations
St. Barnabas Hospital
4422 Third Avenue
Bronx, NY 10457-2594
Phone: (718) 960-9000
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Montefiore at St. Barnabas
4487 Third Avenue
Bronx, NY 10457-1526
Phone: (718) 920-7758
Fax: (718) 231-5064
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Montefiore Medical Park at 1625 Poplar
1625 Poplar Street
Bronx, NY 10461-2653
Phone: (718) 405-8550
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Riverhill Radiation Center
970 North Broadway
Yonkers, NY 10701-1309
Phone: (914) 969-1600
Fax: (914) 969-2264
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Montefiore at 951 Brook Ave
951 Brook Ave
Bronx, NY 10451
Phone: (929) 323-3737
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St. Luke's Cornwall JV LLC
15 Laurel Avenue
Cornwall, NY 12518
Phone: (845) 458-9000
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Academic Title
Assistant Professor, Radiation Oncology
Administrative Title
Attending Physician, Radiation Oncology
Clinical Focus

General radiation oncology with a focus on breast cancer, lymphoma, stereotactic and palliative radiotherapy.

Research Focus

Dr. Klein’s main research focus is primary and translational imaging research as it relates to cancer diagnosis and monitoring response to treatment. Additional interests include patient and interprofessional outreach to educate about the role of radiation therapy in cancer treatment and clinical trials to develop new therapeutic approaches to cancer.


See the physicians publications on PubMed


Jonathan Klein, MD, FRCPC, DABR, is Attending Physician, Radiation Oncology, and Assistant Professor, Radiation Oncology, Albert Einstein College of Medicine. He joined Montefiore in 2017.

Dr. Klein earned his bachelor of science degree with great distinction in physics from McGill University in Montreal, Quebec, Canada. He subsequently earned his medical degree from the University of Western Ontario and completed residency training in radiation oncology at the University of Toronto.

He also completed a joint clinical and research fellowship at the Odette Cancer Centre at the University of Toronto with clinical emphasis on breast and skin radiation oncology and concurrent work toward an MSc degree in medical biophysics at the University of Toronto. Dr. Klein achieved board certification in radiation oncology by both the American Board of Radiology and Royal College of Physicians and Surgeons of Canada during this time.

Dr. Klein has strong academic interests and has published articles in numerous peer-reviewed journals. He has earned several competitive awards to support his research work, and is continuing to work on his clinical and research interests at Montefiore and Einstein.

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Jonathan H. Klein, MD, Attending Physician, Radiation Oncology, Radiation Oncology (Cancer)