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Dr. David Chu

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.

Credentials:  MD
Education & Training
   FACP:    State University of New York at Stony Brook
    Residency:    State University of New York at Stony Brook
    Medical School:    St. George's University School of Medicine
    College:    Cornell University


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

  • "I can't believe what a great experience! I showed up a little early for my appointment. My total wait during the whole appointment was so short, I barely read two pages of my book. Dr. Chu took all the time needed to explain things to me and answered all my questions. I never felt rushed at all."
      from Liz 5.0 Stars - (2025-06-12)
  • "Answered all my questions and concerns in a way I could understand"
      from Micheal 5.0 Stars - (2025-06-11)
  • "Dr. Chu was as pleasant, informative & caring, as usual."
      from Barbara 5.0 Stars - (2025-06-07)
  • "Polite and fast service. Dr. Chu is great."
      from J 5.0 Stars - (2025-06-06)
  • "This place is amazing. My husband & I go there. Very professional and very friendly place. Doctors & nurses take their time with you and address all your concerns. You actually walk out understanding everything that was talked about."
      from June 5.0 Stars - (2025-06-04)
  • "I have nothing but good things to say about Dr. Chu and everyone at New York Cancer and Blood."
      from Joanne 5.0 Stars - (2025-06-03)
  • "5 stars every single time ⭐️⭐️⭐️⭐️⭐️"
      from Michelle 5.0 Stars - (2025-04-24)
  • "Office is run very well. Both the front end , as well as the medical staff were kind, very knowledgeable ."
      from paula 5.0 Stars - (2025-04-23)
  • "Dr Chu has been great in treating Laurie Staron."
      from Rob 5.0 Stars - (2025-04-15)
  • "I always have a lot of questions that get addressed clearly."
      from Mary 5.0 Stars - (2025-04-14)