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Dr. Steven Montana

Medical Oncology & Hematology

Steven Montana, DO is board certified in hematology and medical oncology. He has been a practicing medical hematologist and oncologist on Long Island, NY since 1998.

Dr. Montana received his Bachelor’s degree in Biology from Hofstra University in Hempstead, before attending The New York College of Osteopathic Medicine in Old Westbury, NY where he received his D.O. During this time, he also completed a rotating internship at Saint Clare’s Hospital and Medical Center. Following his internship, Dr. Montana completed his Internal Medical Residency at Saint Vincent’s Hospital and Medical Center and then continued to Stony Brook University for his fellowship where he participated in basic science cancer research studies.

Since then, Dr. Montana has been the co-author of several medical publications. Dr. Montana treats patients at our Port Jefferson and Smithtown offices. Many of his special areas of interest include gastrointestinal cancers, lung cancer, lymphoma, and malignant/nonmalignant hematology.

Credentials:  DO
Education & Training
   FACP:    State University of New York at Stony Brook
    Residency:    St. Vincent's Hospital and Medical Center
    Medical School:    New York College of Osteopathic Medicine
    College:    Hofstra University


John T Mather Memorial Hospital
Peconic Bay Medical Center
Southside Hospital
St. Catherine Of Siena Medical Center
St. Charles Hospital

Patient Reviews

  • "Dr Montana is excellent. Very thorough and caring for my first visit with him. Highly recommend"
      from ADC 5.0 Stars - (2025-08-29)
  • "Great personal attention. Prompt and professional. Highly recommended"
      from Robert 5.0 Stars - (2025-08-27)
  • "Caring professionals. Thank You."
      from Anthony 5.0 Stars - (2025-08-22)
  • "I have been a patient of Dr. Montana for many years. He has a calm demeanor and you're always comfortable with him."
      from Barbara 5.0 Stars - (2025-08-20)
  • "Saw a PA who was very nice and answered all my questions. Help who draw blood are extremely pleasant which is nice to see. For one reason or another The Doctor does not review my metrics, the PA was nice and did an outstanding job but it would be nice to see the head doctor. When I do see Dr Montana he is the best extremely knowledgeable and never cuts corners. He has a great personality as well which makes you feel comfortable speaking to him."
      from B 5.0 Stars - (2025-08-15)
  • "I have been going to New York cancer and blood for 4 years and Dr Montana and the staff at New York cancer and blood are all very helpful and kind"
      from Louise 5.0 Stars - (2025-08-15)
  • "I don't know who this Dr is. I saw a NP yesterday so why is this Dr face on my appt. DR HENDLER is my Dr."
      from dakota 4.0 Stars - (2025-08-07)
  • "Gives you plenty of his time. Do not feel rushed as he answers questions. We feel we are in very good hands"
      from Nancy 5.0 Stars - (2025-08-05)
  • "Love Dr Montana but the wait time is not reliable. 30 minutes after my appointment time I was taken"
      from Jackie 4.0 Stars - (2025-07-27)
  • "He was professional thorough and reassuring. I would definitely recommend him as a doctor."
      from Robin 5.0 Stars - (2025-07-25)