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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:  M.D.
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

  • "excellent staff and care"
      from Kara 5.0 Stars - (2024-05-08)
  • "Always a good experience with NYCB"
      from Louis 5.0 Stars - (2024-05-05)
  • "It's always my pleasure to see Dr Chu, he's great."
      from Don 5.0 Stars - (2024-05-04)
  • "Good visit staff was nice talking blood Dr.Chu was very nice and knowledgeable"
      from Philip 5.0 Stars - (2024-05-02)
  • "Dr Chu is the best! He is compassionate, caring and very thorough. Everyone in the Ronkonkoma office is extremely kind, supportive and helpful."
      from Leigh 5.0 Stars - (2024-05-02)
  • "Entire office staff,lab staff,nurses & Dr Chu top notch"
      from Robert 5.0 Stars - (2024-04-30)
  • "Dr Chu is the Best"
      from David 5.0 Stars - (2024-04-25)
  • "Best care I've ever received. Dr Chu and staff were perfect. Def recommending to friends"
      from Joe 5.0 Stars - (2024-04-25)
  • "Everyone was so kind and professional. From the moment I walked in I was treated with compassion and respect. Dr Chu was very personable and explained everything to me and made me feel very comfortable. I have nothing but praise for New York Cancer and Blood Specialists! Thank you so much."
      from Bruce 5.0 Stars - (2024-04-17)
  • "I love the staff and doctors here. Wonderful facility doing amazing work"
      from Barbara 5.0 Stars - (2024-04-16)