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  • Hematology, Hospice & Palliative Medicine, Oncology
  • Accepting new patients
  • 44 years of experience
  • Southampton Medical Oncology 640 County Road 39, Southampton, NY 11968
  • (631) 204-9700

Brief Intro

Dr. Louis J. Avvento graduated from the University of Rome with a degree in medicine in 1981. During his residency, he chose to submerse 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 currently serves as the Medical Director of East End Hospice in Westhampton, NY, is the Director of Palliative Care at Peconic Bay Medical Center in Riverhead, NY and a board member of Fighting Chance. 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; “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."

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Education Background

MEDICAL SCHOOL

Univ Degli Studi G Dannunzio Chieti-Pescara Scu Di Med E Sci Della Salute - 1981

Languages Spoken

  • English
  • Spanish

Location & Hours

  • Southampton Medical Oncology
  • 640 County Road 39, Southampton, NY 11968
  • Mon:9:00 am - 5:00 pm
    Tue:9:00 am - 5:00 pm
    Wed:9:00 am - 5:00 pm
    Thu:9:00 am - 5:00 pm
    Fri:9:00 am - 5:00 pm
    Sat:Closed
    Sun:Closed

Specialties Treated

  • Oncology
  • Hematology
  • Hospice & Palliative Medicine

Conditions Addressed

  • Hodgkin's Lymphoma
  • Rectal, Abdomen, Small Intestines, or Colon Cancer
  • Gastric Cancer
  • Non-Hodgkin's Lymphoma
  • Malignant Neoplasm of Colon
  • Prostate Cancer
  • Melanoma
  • Cervical Cancer
  • Laryngeal Cancer
  • Liver Cancer
  • Malignant Neoplasm of Female Breast
  • Pancreatic Cancer
  • Lung Cancer
  • Skin Cancer
  • Bladder Cancer
  • Breast Neoplasm, Malignant
  • Hemolytic Anemia
  • Kidney Cancer
  • Leukemia
  • Malignant Neoplasm of Esophagus
  • Ovarian Cancer
  • Malignant Neoplasm of Female Genitourinary Organs
  • Testicular Cancer
  • Thyroid Cancer
  • Uterine Cancer
  • Vitamin B12 Deficiency Anemia
  • Iron Deficiency Anemia
  • Anemia
  • Multiple Myeloma
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Procedures Performed

  • Chemotherapy
  • Blood transfusion

Insurance Accepted

* Insurance information may change frequently. Please verify directly with the provider (doctor/clinic).

  • HealthFirst (NY)
  • UnitedHealthcare
  • Cigna-HealthSpring
  • Cigna
  • Medicare
  • AARP
  • CHAMPVA
  • Empire Plan
  • Meritain Health
  • Aetna
  • HealthSmart
  • Medicaid
  • UnitedHealthcare Oxford
  • Molina Healthcare
  • 1199SEIU
  • Blue Cross Blue Shield
  • Wellcare
  • Contra Costa Health Plan
  • Piedmont Community Health Plan
  • Fidelis Care (NY)
  • EmblemHealth
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  • Cancer 43
  • Cardiology, Heart & Vascular Surgery 31
  • Orthopedics 75
  • Neurology & Neurosurgery 60
  • Gastroenterology & GI Surgery 75
  • Pulmonology & Lung Surgery 91
  • Diabetes & Endocrinology 44
  • Children's Hospital 22
  • Urology 87
  • Psychiatry 103
  • Geriatrics 82
  • Rehabilitation 38
  • Obsterics & Gynecology 17
  • Ophthalmology 4
  • Ear, Nose & Throat 11
  • Rheumatology 2
  • Long Term Care 3
  • Maternity Care (Uncomplicated Pregnancy) 60