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Where I Provide Care

Primary Office
265 Western AVE STE 2
South Portland, ME  04106
Phone: 207-661-0200
Fax: 207-661-0299
Map & Directions
Maine Medical Center - Portland
Southern Maine Health Care - Biddeford

Sarah L Ketchum, MD

Internal Medicine | Hematology | Medical Oncology
I started at Maine Medical Partners – Medical Oncology after working at Mercy Hospital in Portland and Dartmouth-Hitchcock Medical Center in Lebanon, New Hampshire, where I was a fellow and an instructor in medicine in the Department of Hematology/Oncology. I earned a medical degree from Stritch School of Medicine at Loyola University Chicago, and I was a resident in the Department of Internal Medicine at Loyola from 2001 to 2004. I also was a Merit Award Recipient from the American Society of Clinical Oncology in 2006.
Language(s) Spoken

Education & Credentials

Education & Credentials

Board Certification

  • Hematology, 2007
  • Internal Medicine, 2004
  • Internal Medicine, Medical Oncology, 2007


  • Dartmouth Hitchcock Medical Center, Hematology & Oncology, 2007


  • Loyola University Medical Center, Internal Medicine, 2004

Medical School

  • Loyola University Chicago Stritch School of Medicine, 2001
Hospital Affiliation
  • Maine Medical Center since 2018
  • MaineHealth Accountable Care Organization since 2018
  • MaineHealth Cancer Care Network
  • Southern Maine Health Care since 2019