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Dr. Louis Avvento, MD

Dr. Louis Avvento, MD

Age 67 Hematology M
(22) 22 reviews

Telehealth available


Dr. Louis Avvento, MD is a hematology specialist in Southampton, NY. Dr. Avvento completed a residency at Jamaica Hosp. He currently practices at North Shore Hematology Oncology Associates PC and is affiliated with Peconic Bay Medical Center. He accepts multiple insurance plans. Dr. Avvento is board certified in Hematology.


  • Stony Brook University Hospital S U N Y Health Sciences Center, Fellowship Hospital
  • Jamaica Hosp, Residency Hospital
  • University of Rome / Tor Vergata / Faculty of Medicine And Surgery, Medical School
  • Jamaica Hosp, Internship Hospital — 1982

Insurance Accepted

  • Aetna
  • Anthem
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Louisiana
  • Blue Cross Blue Shield of Massachusetts
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • EmblemHealth
  • Empire Blue Cross Blue Shield
  • Humana
  • MultiPlan

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  1. Practice

    1. 1
      North Shore Hematology Oncology Associates PC
      640 County Road 39, Southampton, NY 11968 Existing Patients: (631) 751-3000
  1. North Shore Hematology Oncology Associates, P. C.

    1. 2
      Eastern Long Island Hematology Oncology PC
      1333 E Main St, Riverhead, NY 11901 Existing Patients: (631) 727-8500

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Have been with Dr. Avvento for over 20 yrs. Literally, trust him with my life! Always ask yourself: "Would I put my Mother in his/her care?" & you'll have your answer as to the kind of Dr/Person he/she is!
— May 08, 2019
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Dr. Louis Avvento, MD
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Frequently Asked Questions

Dr. Avvento frequently treats Anemia, Vitamin B Deficiency, and Coagulation Disorders (incl. Hemophilia).  

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Hospital Affiliations

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