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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

  • "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)
  • "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)