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Dr. Noshir DaCosta

Medical Oncology & Hematology

Dr. Noshir DaCosta is a Board Certified Physician in Internal Medicine, Medical Oncology and Hematology.

Dr. DaCosta received his Medical Degree from Seth G.S. Medical School, University of Bombay, India. He completed his Internship and Residency in Internal Medicine at LaGuardia Hospital, New York. In 1992, Dr. DaCosta achieved his Fellowship in Medical Oncology and Hematology at SUNY Stony Brook, University Hospital.

Dr. DaCosta has published numerous studies in Hematology and Oncology in peer reviewed medical journals. Dr. DaCosta has been a lecturer in Clinical Pharmacology and Cancer Biology in the University at Stony Brook School of Medicine. He is currently clinical assistant Professor of Medicine at University Hospital Stony Brook. In addition, Dr. DaCosta has been an Institutional Principal Investigator for NSABP breast cancer protocols. As well as receiving Castle Connolly and Newsday Top Doctors every year since 2012.

Credentials:  MD
Education & Training
   FACP:    State University of New York at Stony Brook
    Residency:    LaGuardia Hospital
    Medical School:    King Edward Memorial Hospital
    College:    University of Bombay
    Fellowships:    SUNY Stony Brook, University Hospital


Eastern Long Island Hospital
John T Mather Memorial Hospital
Peconic Bay Medical Center
St. Catherine Of Siena Medical Center
St. Charles Hospital
University Hospital at Stony Brook

Patient Reviews

  • "Caring, compassionate and knowledgeable. Answers all of your questions and responds to telephone calls"
      from Douglas 5.0 Stars - (2025-09-11)
  • "Dr. Decosta has taken care of me for the last 10 years, he is the most caring and wonderful doctor I have ever had. This was our 10 year anniversary of me being cancer free thank you Dr. DaCosta!"
      from Doreen 5.0 Stars - (2025-09-10)
  • "Dr. Dacosta was great. The Smithtown staff were friendly and helpful"
      from Rowena 5.0 Stars - (2025-08-24)
  • "I have been led to Dr DaCosta 3 separate times in the past 15 years. Each time he was informative, compassionate and reassuring. He describes what is medically happening, and presents possible treatment plans. He is the best physician I have ever seen, and I trust him with my healthcare. Also, all of the staff are equally kind, timely and courteous. Sincere thanks 🙏🏻 😊"
      from Gabrielle 5.0 Stars - (2025-08-23)
  • "I want to express my sincere appreciation for Dr. DaCosta . He cared for my late wife with compassion and dignity, and now he continues to care for me with the same dedication. His presence during some of the most difficult times in our lives gave us both comfort and confidence. What I value most about Dr. Dr DaCosta is the way he combines medical expertise with genuine kindness. He listens with patience, explains with clarity, and treats his patients with respect and empathy. His bedside manner has always made me feel seen and cared for, not just treated as a patient. I feel truly fortunate to be under his care and grateful for the support he has provided my family and me. Physicians like Dr. DaCosta make a profound difference, and I wanted to take this opportunity to recognise his outstanding work and the compassion with which he practices medicine."
      from Sharwan 5.0 Stars - (2025-08-23)
  • "Dr. Dicosts is the best. So kind so knowledgeable"
      from Laurie 5.0 Stars - (2025-08-23)
  • "Great experience, Dr. explained everything and called back for a follow up"
      from thomas 5.0 Stars - (2025-08-22)
  • "GREAT VISIT AS USUAL."
      from HAROLD 5.0 Stars - (2025-08-16)
  • "Comfortable environment excellent phlebotomist nurse practitioner, instant laboratory results ,Dr. DaCosta highly recommended."
      from Chris 5.0 Stars - (2025-08-16)
  • "Dr. DaCosta treated me professionally and personally very well He addressed all my concerns"
      from Anthony 5.0 Stars - (2025-08-14)