Doctor image

John F. D’Avella, MD, FASN

“I am excited to join the talented medical staff at Nantucket Cottage Hospital and to become part of the year-round island community.” Island Staff Member

Clinical Overview



Internal Medicine Physician; Nantucket Cottage Medical Group

Department + Services


My Expertise

Kidney issues, diabetes, hypertension, kidney stones, medical care of kidney transplant patients

Board Certifications

American Board of Internal Medicine; National Board of Medical Examiners; American Society of Nephrology; American Society of Transplant Physicians
image description



Degree & Residencies

College of the Holy Cross, B.A.
Georgetown University School of Medicine, M.D.
Yale New Haven Hospital, Intern and Resident, Dept. of Surgery
Yale New Haven Hospital, Internship and Residency, Dept. of Internal Medicine
Yale New Haven Hospital, Chief Residency in Internal Medicine
Yale University School of Medicine, Renal Fellowship

Honors & Recognition

Lifetime Achievement Award, National Kidney Foundation, 2016
Most Compassionate Physician Award, American Registry, 2014 & 2012
Patient Safety & Quality Award, Hartford Hospital, 2012
Outstanding Service Award, Hartford Hospital, 2010
James P. Colangelo, MD, Achievement Award, National Kidney Foundation, 2008
Laureate Award, American Collage of Physicians, CT Chapter, 2007


Dr. D’Avella has moved to the island year-round and joined NCH’s medical staff following a distinguished career in Connecticut, where he was a physician at Hartford Hospital for more than 30 years, with an extensive background in nephrology and dialysis. He and his wife Denise own a home on Nantucket, and have visited the island for many years.

Dr. D’Avella provides nephrology consults in the hospital’s medical/surgical unit and in the emergency department, and is accepting referrals for patients with kidney issues, difficult to manage hypertension, diabetes, and kidney stones.

Dr. D’Avella has served as the professor of clinical medicine at the University of Connecticut School Medicine, as well as the medical director of Hartford Hospital’s dialysis unit. In 2016, he was awarded a Lifetime Achievement Award from the National Kidney Foundation of Connecticut.

Contact Dr. D'Avella, MD, FASN




Nantucket Cottage Hospital
57 Prospect Street
Nantucket, MA 02554

Get Directions