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Dr. Paul Youn

Radiation Oncology

Paul Youn, MD is a board certified radiation oncologist. He specializes in treatment of cancers in prostate, breast, lung, head and neck, gastrointestinal (GI) system, gynecological (GYN) system, skin, and lymphoma.

He is experienced with multiple radiotherapy techniques, including stereotactic radiosurgery (SRS), stereotactic ablative body radiotherapy (SABR), volumetric modulated arc therapy (VMAT), intensity modulated radiation therapy (IMRT), and prostate and gynecologic brachytherapy.

He completed undergraduate studies at Cornell University, graduating cum laude with B.S. in Biological and Environmental Engineering.

He earned his medical degree with distinction in research at University of Rochester School of Medicine and Dentistry. He then went onto residency training in radiation oncology at University of Rochester Medical Center, where he served as chief resident.

Credentials:  M.D.
Education & Training
   Residency:    University of Rochester Medical Center
    Medical School:    University of Rochester School of Medicine and Dentistry
    College:    Cornell University


John T Mather Memorial Hospital
Long Island Community Hospital
Peconic Bay Medical Center
St. Charles Hospital

Patient Reviews

  • "Always a great experience! ( though wish I didn’t have to be there). Georgia and Karen are just delightful and Dr Youn is so positive!"
      from William 5.0 Stars - (2025-04-24)
  • "Dr. Joun was very professional and answered all my questions and concerns."
      from Faith 5.0 Stars - (2025-04-10)
  • "Staff was friendly, and kind. Dr Youn was assuring that I would be taking care of and answered all my questions also made me feel confident that the treatments would take care of my issue. I look forward to starting my journey with these wonderful professionals."
      from Donna 5.0 Stars - (2025-03-29)
  • "Caring, competent staff"
      from G 5.0 Stars - (2025-03-29)
  • "Dr youn A very nice and professional person, he explains the whole process with great patience and answers all your questions… amazing Doctor"
      from Ana 5.0 Stars - (2025-03-06)
  • "Perfectly clean. Taken immediately. Dr. Youn is very knowledgable explaining every step of the way. Which made me feel very confident about assuring."
      from Anne 5.0 Stars - (2025-02-15)
  • "Dr. Youn was very helpful and understanding of my particular issues. Looking forward to working with him on my road to recovery"
      from Bill 5.0 Stars - (2025-02-15)
  • "Thank you to Dr. Youn & all staff at Riverhead NYCBS- for been caring and friendly, and taking care of the laser therapy, just had my 3 year check up-YEY! FREE of cancer! i wish you be helpfull to as many patients as u can , but (sorry guys) i hope i will not need that help in the rest of my life! : )"
      from eugenia 5.0 Stars - (2025-01-27)
  • "Very quick. Very efficient."
      from Richard 5.0 Stars - (2025-01-19)
  • "The staff was wonderful, answered any questions I had at the time and reassured me re insurance and cost. Walked me slowly through the masking process and efficiently set up my next appointment. I can’t be more pleased, as I am with the entire New York Cancer and Blood Specialist organization."
      from Edmund 5.0 Stars - (2024-11-29)