Medical Oncology & Hematology
Dr. Chu is board-certified in Internal Medicine, Hematology, and Oncology.
After receiving his BS in Biology from Cornell University, Dr. Chu went on to receive his MD at St. George’s University. He did his internship and residency training at Stony Brook University Hospital. He completed his fellowship training at Stony Brook University Hospital and was named Chief Fellow during his last year.
Dr. Chu has faculty appointment of Clinical Instructor and was elected to the Stony Brook Hospital medical board.
He is Chief of the Department of Hematology and Oncology at Mather Hospital and St. Charles Hospital. At Mather Hospital, he serves as Chairman of the Cancer Committee and Chairman of the Breast Program Leadership Committee.
He is the Associate Chief of the Clinical Research Department at New York Cancer Specialists.
Additionally, Dr. Chu is the Program Director of Mather Memorial Hospital's Internal Medicine Residency Division of Hematology-Oncology. He is also the Assistant Program Director of the Mather Memorial Hospital Fellowship Program.
Dr. Chu is a member of the Anticoagulation Committee for Catholic Health Services.
He has co-authored dozens of publications relating to oncology and hematology and has presented his findings at numerous national conferences.
D. Chu has most recently been re-appointed as Assistant
Professor in the Department of Medicine, for the School of Medicine at Hofstra/Northwell.
His interests include lung cancer, lymphomas, and targeted biologic therapeutic agents. Dr. Chu has been proudly recognized as a Top Doctor by Castle Connolly.
| Eastern Long Island Hospital |
| John T Mather Memorial Hospital |
| Long Island Community Hospital |
| Peconic Bay Medical Center |
| St. Catherine Of Siena Medical Center |
| St. Charles Hospital |
| University Hospital at Stony Brook |
Patient Reviews
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"I love this office and all that work here. Professional kind and quick. That describes this staff. Dr. Chu and his staff are exceptional."
from Maria 5.0 Stars - (2025-09-19) -
"I love this clinic as they are so friendly and welcoming to me. I look forward to my visits with them."
from Joshua 5.0 Stars - (2025-09-04) -
"Very efficient"
from Sherry 5.0 Stars - (2025-09-03) -
"Excellent experience. Dr chu is so wonderful. Took the time to answer any question. Very polite. The staff is wonderful, caring and kind"
from Debbie 5.0 Stars - (2025-08-30) -
"I like dr chu because he is a great person and very friendly and he cares about me and everyone else and my mom went to him and he took good care of my mom. I wil continue to go to him"
from Barbara 5.0 Stars - (2025-08-28) -
"Dr. Chu is the best"
from Jeep 5.0 Stars - (2025-08-26) -
"Excellent staff!"
from Theresa 5.0 Stars - (2025-08-23) -
"He's an awsome doctor"
from Mary 5.0 Stars - (2025-08-23) -
"No complaints everyone staff, and doctors all respectable and courteous."
from Loretta 5.0 Stars - (2025-08-08) -
"Staff is very pleasant. I am very satisfied with Dr Chu. He is informative and thorough"
from Paula 5.0 Stars - (2025-07-31)