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Frank O’Connor, MD

“My wife and I are looking forward to living on the island and getting to know the Nantucket community. I’m going to be doing the basic gamut of general surgery and be able to offer some laparoscopic surgery, so hopefully we’ll be able to keep more patients on the island for their needs.” Island Staff Member

Clinical Overview



General Surgeon; Nantucket Cottage Medical Group Physician

Department + Services


My Expertise

General and laparoscopic surgery

Board Certifications

American Board of Surgery
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Degree & Residencies

B.A. - College of the Holy Cross, Worchester, Massachusetts
M.D. - Tufts University School of Medicine, Boston, Massachusetts
Residency - Baystate Medical Center, Springfield, Massachusetts


Dr. O’Connor, who moved to Nantucket in 2017 with his wife Maribeth and purchased a home in the mid-island area, is a Massachusetts native who grew up in Woburn. The couple has four grown children: Kelley, Francis, Alyssa, and Ryan. Dr. O’Connor has served as a staff surgeon at Naval hospitals in North Carolina, Spain, Rhode Island, and most recently at Camp Lejeune where he was also the director of a multispecialty clinic. Over his 26 years in the military, Dr. O’Connor was deployed to Iraq during Operation Iraqi Freedom, aboard the USNS Comfort in support of Hurricane Katrina relief in 2005, as well as in Kuwait, and Djibouti in Africa.

Contact Dr. O'Connor


(508) 825-1000


Nantucket Cottage Hospital
57 Prospect Street
Nantucket, MA 02554

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