Medical Oncology & Hematology

Dr. Evan Diamond is a hematologist-oncologist at New York Cancer & Blood Specialists. After receiving his undergraduate degree from the University of Michigan, Dr. Diamond obtained his medical degree from Ross University School of Medicine. He returned to NY, completed his Internal Medicine Residency at New York-Presbyterian Queens Hospital, and was named chief resident. To conclude his post-graduate training, he completed his fellowship in Hematology and Oncology at Newark Beth Israel Medical Center, where he was the recipient of the Lester Z. Lieberman Award for his commitment to humanism in medicine and was named chief fellow.

Dr. Diamond has experience in research and scholarly activities with publications and poster presentations. In addition, he has a particular interest in survivorship, promoting wellness, and collaborating with others to provide the best possible treatment care and outcome for his patients

Credentials:  MD
Education & Training
   Residency:    New York-Presbyterian Queens Hospital
   Medical School:    Ross University School of Medicine
   College:    University of Michigan
   Fellowships:    Newark Beth Israel Medical Center


Huntington Hospital
Long Island Jewish Forest Hills
Mount Sinai Manhattan
North Shore University Hospital - Manhasset
St. Catherine Of Siena Medical Center

Patient Reviews

  • "Everybody was really nice and made me feel comfortable."
      from Christin 5.0 Stars - (2025-07-08)
  • "Very happy with Dr Diamond and his team"
      from Joe 5.0 Stars - (2025-07-02)
  • "Dr. Evan Diamond is wonderful. Thoughtful, caring, clear communicator, good listener, pragmatic, etc. The effort required to schedule the appointment with radiology based on his prescriptions has been terrible. He is great but getting appt has been terrible."
      from Brian 5.0 Stars - (2025-07-01)
  • "Pleasant experience"
      from Syed 5.0 Stars - (2025-06-10)
  • "Nothing but excellence and true care from Dr. Diamond and the staff at New York Cancer and blood specialists located in the Smithtown office.Though my issue was a small problem, I was treated with respect and care every time I walked through the door. The Doctor was able to work through my mind boggling medical issues being addressed outside of his realm and focus on the issue he was requested to deal with, which they handled with zero problems. I highly recommend these folks."
      from Michael 5.0 Stars - (2025-06-05)
  • "Dr. Diamond and Staff are always very professional and caring."
      from Patrica 5.0 Stars - (2025-06-04)
  • "Everybody is very nice and I feell comfortable there"
      from Sharon 5.0 Stars - (2025-06-03)
  • "Dr. Diamond is one of a kind! I wish I had more doctors like him"
      from paul 5.0 Stars - (2025-05-28)
  • "Dr. Diamond, is wonderful. He cares about his patients and makes you feel at ease as he discusses your health issues."
      from Jo-Ann 5.0 Stars - (2025-05-28)
  • "I have been a patient of Dr Evan Diamond's for a number of years now and I highly recommend him. He is knowledgable, thorough, pleasant and knows his science well. He does not rush you out and entertains your questions as needed. Do not be afraid to ask him questions. Overall I would describe him as competent and compassionate."
      from Mitchell 5.0 Stars - (2025-05-23)