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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:  D.O.
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

  • "As always, the Nursing staff is phenomenal, and depth of care provided by Dr Montana and his staff is life saving & life changing. Thank-you."
      from Christopher 5.0 Stars - (2025-03-15)
  • "New York Blood and Cancer has been an incredible place for my care, especially with getting fluids and seeing my hematologist, Dr. Montana. He made a life-saving decision to put me on Eliquis before my test results even came back, trusting his expertise and the previous CAT scan. That decision may have saved my life, giving me time to have surgery to remove a tumor that was invading my heart. The care here is outstanding, and I’m beyond grateful for their dedication and expertise."
      from Michelle 5.0 Stars - (2025-03-14)
  • "As usual staff: reception, phlebotomist, and P.A. were exceptional. Wait time was minimal. P.A.’s manner and professionalism was above reproach. Very knowledgeable answered all my questions and explained test results. It’s only 4 stars because I still haven’t seen the doctor other than my initial visit. Granted there are more needy patients, but once in a while reassurance from the doctor would be supportive."
      from Peter 4.0 Stars - (2025-03-13)
  • "The best"
      from Steve 5.0 Stars - (2025-03-13)
  • "Always listen and handles with care"
      from Cheryll 5.0 Stars - (2025-03-08)
  • "Yesterday was my first Visit. I was scared until I started speaking with the staff & Dr Montana. To make a long story short I left the office with a much better understanding. I Thank you all from the bottom of my heart."
      from Anthony 5.0 Stars - (2025-02-15)
  • "Friendly staff. Excellent medical care."
      from Deanna 5.0 Stars - (2025-02-12)
  • "Very Friendly staff and medical professionals. I’m very satisfied with my experience"
      from Vincent 5.0 Stars - (2025-02-11)
  • "Extremely positive experience. Doctor Montana accurately predicted what was the root cause of my poor blood test results, wasn’t trying to talk me into more expensive tests or procedures, instead simply prescribed OTC diet supplement. 6 months later my results are back to perfect!! Dr Montana is an extremely sharp and professional physician and I would highly recommend him to anyone seeking help"
      from Chris 5.0 Stars - (2025-02-11)
  • "Short time from start to finish. Each member of the care team I dealt with were courteous and professional."
      from Kurt 5.0 Stars - (2025-02-05)