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Where I Provide Care

Primary Office
6 Glen Cove DR
Rockport, ME  04856
Phone: 207-301-8969
Fax: 207-301-5270
Map & Directions
265 Western AVE STE 2
South Portland, ME  04106
Phone: 207-661-0200
Fax: 207-661-0299
Map & Directions
Maine Medical Center - Portland
Mid Coast Hospital - Brunswick
Southern Maine Health Care - Biddeford

Roger C Inhorn, MD, PhD

Internal Medicine | Internal Medicine, Medical Oncology
Dr. Inhorn has recently joined Maine Medical Partners – Medical Oncology. He was the Medical Director of the Oncology/Hematology Center at Mercy Hospital from 2004 to 2018. He earned his MD and Ph.D. degrees at Washington University Medical School in St. Louis. He did an internal medicine residency at Brigham and Women’s Hospital, then completed a fellowship in medical oncology at the Dana-Farber Cancer Institute. Dr. Inhorn has a particular interest in the treatment of patients with breast cancer and gastrointestinal malignancies. He is Board certified in medical oncology and internal medicine.
Language(s) Spoken

Education & Credentials

Education & Credentials

Board Certification

  • Internal Medicine, 1993
  • Internal Medicine, Medical Oncology, 1995


  • Dana-Farber Cancer Institute, Internal Medicine, Medical Oncology, 1996


  • Brigham and Women's Hospital, Internal Medicine, 1993

Medical School

  • Washington University School of Medicine, 1990
Hospital Affiliation
  • Maine Medical Center since 2019
  • MaineHealth Accountable Care Organization since 2018
  • MaineHealth Cancer Care Network
  • Pen Bay Medical Center since 2022
  • Southern Maine Health Care since 2019
  • Waldo County General Hospital since 2021