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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

  • "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)
  • "Every single staff member are so kind and caring"
      from Maria 5.0 Stars - (2025-01-31)
  • "Dr. Montana is very professional as well as his staff he always has time for any of my questions Dr Montana put me on a regimen of medications for melanoma my latest pet scan has come back normal I can’t thank him enough for helping me achieve this result I would highly recommend him and the New York cancer and blood specialists team Dennis Alebrande"
      from dennis 5.0 Stars - (2025-01-29)
  • "This was my first time seeing Dr Montana at this location (Terry Rd Smithtown) . The staff were very friendly, professional and informative. Had a great visit and will continue to use this facility which is very convenient to my home."
      from Steve 5.0 Stars - (2025-01-28)
  • "The entire staff is friendly and professional. They are always helpful and really nice to work with. Dr. Montana continues to be my rock as he provides intelligent insights, advice and professional care to thwart this dreadful illness, and monitor my full recovery."
      from Ray 5.0 Stars - (2025-01-23)
  • "Everyone was wonderful"
      from Sheila 5.0 Stars - (2025-01-16)