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.
| John T Mather Memorial Hospital |
| Peconic Bay Medical Center |
| Southside Hospital |
| St. Catherine Of Siena Medical Center |
| St. Charles Hospital |
Patient Reviews
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"Dr Montana, the Nurse practitioner and nurse were all very professional and explained everything and answered all my questions.
thanks for a nice experience to a stressful examination of my blood work up. The young lady who drew my blood did a great job no "black and blue marks" like my previous blood work from other medical practices."
from Tom 5.0 Stars - (2026-01-03) -
"Dr Montana is great calm and explains everything đź‘Ť"
from steven 5.0 Stars - (2026-01-03) -
"Very efficient and friendly staff! Dr. Montana was wonderful and explained everything very well!! I was very comfortable and well informed!!"
from Linda 5.0 Stars - (2025-12-25) -
"Dr. Montana and his staff are wonderful and explain everything to you. Would definitely recommend."
from Laureen 5.0 Stars - (2025-12-24) -
"I have multiple family members / friends that are patients of Dr. Montana. His knowledge and commitment to their health journey is why I will always refer him to anyone in need of a hematologist/oncologist."
from Tricia 5.0 Stars - (2025-12-21) -
"Very professional starting when you check in till you check out.. caring, kind, the best ...."
from Jorge 5.0 Stars - (2025-12-17) -
"First of all, as I walked in the lady at the check in desk (Asley) welcomed me by name. She was busy with someone else.she told me to take a seat and will start to get me checked in. She has a great personality.
The nurses that do my phlebotomy are very accommodating and professional.
Dr Montana, He is very informative and take time with you. I would highly recommend Dr Montana and all the staff."
from Kevin 5.0 Stars - (2025-12-06) -
"There's not much of a wait time. đź‘Ť Everyone who works there, is extremely pleasant and knowledgeable."
from Catherine 5.0 Stars - (2025-12-04) -
"Everyone in the office was pleasant and caring Dr Montana was caring also his assistant"
from Barbara 5.0 Stars - (2025-12-01) -
"Everyone is very helpful. Dr. Montana is patient, thorough and knowledgeable, as is his staff. They make an uncomfortable situation tolerable."
from Carol 5.0 Stars - (2025-11-29)