Killian MacCarthy, DMD, MD FACS


Dr. MacCarthy was born in Dublin, Ireland, and grew up in Australia, Ohio, and Connecticut.  He graduated from College of the Holy Cross in 1995 with a BA in Biology and the John Paul Reardon Medal for excellence in studio art.  His training continued at The University of Connecticut School of Dental Medicine where he obtained his DMD in 2001.  He continued on at Harvard Medical School, graduating with his MD in 2004.  He then joined Oral & Maxillofacial Surgery Associates in 2007 after he completed his oral and maxillofacial surgery training at Massachusetts General Hospital, Brigham & Women’s Hospital and Children’s Hospital in Boston.  He became board certified by the American Board of Oral and Maxillofacial Surgery in 2009.

Dr. MacCarthy is a member of the American Dental Association and American Association of Oral and Maxillofacial Surgeons.  In 2013, he was inducted to the American College of Surgeons as a fellow.  He is active in the community serving on the active medical staff at both Maine Medical Center and Mercy Hospital, and the Greater Portland Cleft Lip and Palate Team.  He is Director of the Anesthesia Committee for the Maine Board of Dentistry.

Dr. MacCarthy’s clinical interests include dentoalveolar surgery, dental implants, orthognathic surgery, facial trauma, and pathology.