Mary O'Neill, MD

Doctor of Medicine, a common medical school degree for physicians. MDs at One Medical typically specialize in family medicine, internal medicine, geriatrics or pediatrics.

About Mary

I believe healthcare is a fundamental human right, and wish the One Medical Seniors model of excellent primary care was available to all Americans.

Albany Medical College

Albany Medical Center, St. Peter’s Hospital

Board certification
Family Medicine

Additional expertise

  • Has also worked as an acute care Hospitalist Physician since 2014
  • Enjoys treating medically complex patients and encouraging optimal health

Other languages spoken
Spanish, basic French

Goes by
Dr. O'Neill


1070 Iyannough Rd

Hyannis , MA 02601

Become a patient

Interested in becoming a patient or learning more about One Medical? Give us a call at
or click the button below