Medical Oncology & Hematology
Dr. Staszewski served as Chief of the Oncology Hematology Division at Winthrop-University Hospital from 1996-2015, and is an Associate Professor of Clinical Medicine at SUNY Stony Brook.
After earning an M.D. from Yale University, Dr. Staszewski completed his residency training and fellowships at North Shore University Hospital, Long Island Jewish Medical Center and Memorial Sloan Kettering Cancer Center. Dr. Staszewski maintains active memberships with the American Society of Clinical Oncology, American Society of Hematology, and the American Association for Cancer Research. He has been recognized as an outstanding hematologist by his listing numerous times in the annual “Best Doctors” issue of New York Magazine. Dr. Staszewski was the principal investigator for a number of clinical trials in breast cancer, leukemia, myeloma, and colorectal cancers. He fosters innovation and research, particularly in cutting edge molecular diagnostic technology, helping to bring personalized medicine and bio-marker research from theory to reality.
He has published numerous articles in major peer-reviewed medical journals. During his 30+ year career in Medicine, Dr. Staszewski continues to develop and maintain the ongoing medical education of physicians and clinical staff. Dr. Staszewski has been closely involved in mentoring and teaching medical students, residents and sub-specialty fellows.
Dr. Staszewski’s clinical practice spans the entire spectrum of hematological and oncological disorders but he has a particular interest in hematological malignancies and colorectal cancer. At New York Cancer & Blood Specialists, Dr. Staszewski currently serves as Chief Medical Officer.
| John T Mather Memorial Hospital |
| Peconic Bay Medical Center |
| St. Catherine Of Siena Medical Center |
| St. Charles Hospital |
Patient Reviews
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"Great staff-new clean facility- doctor was great- explained everything very well- all good"
from Peter 5.0 Stars - (2024-07-20) -
"The whole office is very professional and Dr Harry Staszewski is the best doctor you’ll ever have in the field of hematology and oncology"
from Elizabeth 5.0 Stars - (2024-07-19) -
"Very through in explaining all aspects of treatment."
from Marilyn 5.0 Stars - (2024-07-06) -
"Nice place the staff makes you very comfortable, just neefs a different name
NY bood studys would be better that Caner word is Scary.
But otherwise great place"
from peter 5.0 Stars - (2024-06-05) -
"Dr. Harry and team are wonderful and very caring."
from ms1eas 5.0 Stars - (2024-06-05) -
"Dr. Harry and Dr. Hardon And the whole Blood and cancer staff are the best. They are so caring and thoughtful making a difficult time so much more tolerable thank you Blood and cancer Center."
from john 5.0 Stars - (2024-06-02) -
"I was very appreciative of the care and concern shown to me as well as the time spent."
from Seymour 5.0 Stars - (2024-05-22) -
"Nice team and looks like they doing the correct steps to determine what's with me. The Dr. Is a professional with lots of knowledge, also the practice is new and clean."
from Michael 5.0 Stars - (2024-05-01) -
"The doctors and nurses were great. I was very impressed."
from stanley 5.0 Stars - (2024-04-30) -
"Friendly and efficient."
from Virginia 5.0 Stars - (2024-04-30)