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 always have a lot of questions that get addressed clearly."
from Mary 5.0 Stars - (2025-04-14) -
"Everyone is courteous from start to finish"
from Tracee 5.0 Stars - (2025-04-13) -
"The staff and Dr Chu are always friendly, caring and very professional. NY Cancer and Blood along with NY Health are a great healthcare organization to take care of all your health care needs.
Respectfully,
Tammy Matta"
from Tammy 5.0 Stars - (2025-04-11) -
"I always look forward to my office visits with Dr. David Chu. He truly cares about each and every one of his patients and their families. I have celiac disease and Dr. Chu has been monitoring my care for years. I am feeling fantastic and grateful for Ny Cancer and Blood Specialists"
from Susan 5.0 Stars - (2025-04-11) -
"Dr Chu really is a great friendly guy and makes you feel at ease. The waiting and examination room Wait were both very short.
P. S. Everybody who works there was very friendly."
from Wayne 5.0 Stars - (2025-04-10) -
"Superb care by staff.
Exemplary courtesy, couple with excellent communication of test results."
from Richard 5.0 Stars - (2025-04-05) -
"Courtney was great and professional 👏"
from Judith 5.0 Stars - (2025-04-02) -
"Office is clean. All the people working are patient and nice. Doctors and Nurse Practitioner are very knowledgeable."
from Risa 5.0 Stars - (2025-03-29) -
"It was run like a well oiled machine. I went in to the front desk very crystal. Clear instructions went to have my blood drawn. Everybody was polite and friendly. Then when I spent 20 minutes with Dr.Chu He was very thorough explaining to me all the All the parameters and what next steps we had to do."
from eugene 5.0 Stars - (2025-03-26) -
"I had an outstanding experience with Dr. David Chu and his incredible staff! From the moment I walked in, the receptionist was warm and welcoming, making the check-in process a breeze. The phlebotomist was gentle and efficient, putting me at ease during my blood draw. The medical assistant was attentive and thorough, ensuring all my questions were answered. Dr. Chu himself was knowledgeable, caring, and took the time to listen to my concerns. The professionalism and kindness of the entire team made my visit truly exceptional. Highly recommend! ⭐⭐⭐⭐⭐"
from Who's 5.0 Stars - (2025-03-20)