Headshot of Dr. Louis Avvento M.D.
MAKE AN APPOINTMENT


Languages: English, Italian

Dr. Louis Avvento

Medical Oncology & Hematology

Louis J. Avvento, MD graduated from the University of Rome with a degree in medicine in 1981. He continued with his residency at Jamaica Hospital in Queens, where he chose to submerge himself into the oncology world because, at the time, treatments were limited and patient care was extremely challenging. He wanted to be a part of a healthcare revolution to change the lives of oncology patients for the better and has found it to be the most rewarding career he could have chosen

After completing his fellowship in Hematology and Oncology at Stony Brook University, Dr. Avvento began a private practice in Riverhead as a solo practitioner with a nurse and receptionist – a staff of three. The practice eventually grew to a staff of forty-five oncology professionals. Dr. Avvento chose the East End of Long Island because in 1988, there were no other practices around. He created a more convenient and comfortable situation for patients.

Dr. Avvento is board-certified in four specialties including Internal Medicine, Hematology and Hospice, Medical Oncology, and Palliative Care. He has been the Medical Director of East End Hospice in Westhampton, NY since 1990. He is the former Director of Palliative Care at both Peconic Bay Medical Center and Southampton Hospital in Riverhead, NY. He was involved in establishing the Palliative Care Fellowship at Southampton Hospital for training doctors in palliative care. Dr Avvento was also responsible for the palliative care board certification of 4 physicians at the Southampton Hospital and 3 Nurse practitioners at Peconic Bay Medical Center under the newly established palliative care programs. Dr. Avvento is a former board member of Fighting Chance and currently holds an appointment as Adjunct Assistant Clinical Professorship at Mount Sinai.

Through the years, Dr. Avvento has received multiple awards in recognition of his outstanding performance and achievements in the field. Accolades include: “Best Doctors on Long Island’ –Newsday, 2008-2019; “Physician of the Year” –Peconic Bay Medical Center, 2005; “Best Doctors” –New York Magazine, 2004/2008; Castle Connolly Top Doctors: New York Metro Area – 2002 to 2008, 2010 to 2014; Patient’ Choice 5th Anniversary Award – 2012; Patients’ Choice Award – 2008 to 2012, 2014; and Compassionate Doctor Recognition – 2010 to 2012."

Credentials:  M.D.
Education & Training
   FACP:    State University of New York at Stony Brook, North Port VA Medical Center
    Residency:    The Jamaica Hospital
    Medical School:    University of Rome
    College:    New York University


Eastern Long Island Hospital
Peconic Bay Medical Center
Southampton Hospital
Stony Brook University Hospital

Patient Reviews

  • "Dr Avvento and his entire team are professional, compassionate and knowledgeable. They allow you as much time as you need to have your concerns and questions addressed. You never feel rushed."
      from Frank 5.0 Stars - (2024-04-19)
  • "As always the best patient care"
      from Michael 5.0 Stars - (2024-04-18)
  • "I have been seeing Dr. Avvento for quite a while. Dr. Avvento and his entire staff have always exhibited the caring, professionalism, and friendliness that exemplifies the gold standard of medicine."
      from Terri 5.0 Stars - (2024-04-12)
  • "I don’t know what I would do without Dr Avvento and his wonderful team . They are so caring and no matter what you need they are on top of it!"
      from Kelly 5.0 Stars - (2024-04-10)
  • "Literally impossible for me to express with words what Dr. Avvento has done for me when I was first diagnosed with stage IV Non- Hodgkin's lymphoma in September 1999 when he was in Southampton, East End Hematology & Oncology. After being in remission for a quarter of a century I was blessed once again to be cured by Dr. Avvento. I was so very impressed with everyone, Drs, nurses, receptionists and any clinic that I was sent to on Long Island that is affiliated with New York Cancer & Blood. Not only because of how they treated me..... but the healing affect it had on my soul to see the interaction and kindness towards each other. My thoughts are that love and healing go hand in hand and that it's contagious! God bless you all! Frank Smith....9/30/54 (Lol.... Last name & DOB)"
      from Frank 5.0 Stars - (2024-04-09)
  • "Dr Avvento and his staff always provide excellent and professional care."
      from Jimmy 5.0 Stars - (2024-04-03)
  • "The office visit went very well and Dr. Auvento is a great doctor"
      from Charles 5.0 Stars - (2024-04-02)
  • "Excellent!"
      from Fran 5.0 Stars - (2024-04-01)
  • "Excellent care by a well informed NP Jenna. This NP is very knowledgeable in internal medicine and pharmacology. I have been in the medical field since 1968."
      from Monroe 5.0 Stars - (2024-03-07)
  • "Treated wonderfully by all. Loved my experience."
      from Theresa 5.0 Stars - (2024-02-21)