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Headshot of Dr. David Chu MD
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4.9
581 Patient Reviews


Languages: English

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


  • Locations
  • Hospitals
Port Jefferson Medical Oncology 1500 Route 112, Building 1, Port Jefferson Station, NY 11776 631-751-3000
Port Jefferson Station Medical Oncology 49 Route 347, Port Jefferson Station, NY 11776 631-751-3000
Ronkonkoma Medical Oncology 501 Hawkins Avenue, Lake Ronkonkoma, NY 11779 631-751-3000
Smithtown Medical Oncology (Terry Rd) 119 Terry Road, Smithtown, NY 11787 631-751-3000
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

  • "Dr Chu is very personable and he and his staff are very caring. Thank you."
      from Dolores 5.0 Stars - (2025-07-24)
  • "Great first experience. Doctor and NP. Was wonderful and explained everything.."
      from Wendy 5.0 Stars - (2025-07-23)
  • "Always a pleasure to see Dr Chu. He is by far the best doctor that I see and his bedside manner is impeccable. Thank you for taking such good care of me for the past idk how many years and I will see u for my follow up in 6 months."
      from BEANZTV 5.0 Stars - (2025-07-18)
  • "Dr. Chu and his staff are fabulous. They care about their patients and work together to provide the best care to their patients. Highly recommend them!!"
      from Lena 5.0 Stars - (2025-07-17)
  • "Excellent service: facility very clean and organized. Staff professional. Physicians, especially Dr. Chu, knowledgeable and you feel confident in his advice."
      from Henry 5.0 Stars - (2025-07-16)
  • "Everyone is very polite and efficient allowing you to pump through endless bodies like a smooth running engine but have deleted the ability to develope any kind of comfort in a relationship to develope between Dr. and patient . This doesn’t allow for a complete diagnosis ! Without a full grasp of the patients lifestyle , occupation and environment a complete picture isn’t shared . With a different PA every visit that lasts just 10 minutes the patient also doesn’t feel comfortable to sometimes share and typically isn’t asked . They simply want to know if you have any medication changes and give you your blood results ."
      from Alice 4.0 Stars - (2025-07-13)
  • "My experience at this facility is nothing short of excellence. The staff is amazing and hospitable. The explanations of diagnosisis are comprehensive and when applicable, they bring in the family to understand the best course of trreament"
      from Sherwin 5.0 Stars - (2025-07-12)
  • "This is a very organized office. Check in was easy, blood draw went well, Dr was not in office because of being called in to the hospital but the PA was great."
      from Bill 5.0 Stars - (2025-07-12)
  • "Staff ,and nurses are verry courteoous , frieendly and cosiderate"
      from Anthony 5.0 Stars - (2025-07-09)
  • "Very professional and courteous staff. The wait time was minimal. Dr. Chu takes the time to explain your situation and answers all your questions. You're never rushed at NYCB."
      from Jack 5.0 Stars - (2025-07-08)

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