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Marshall Robert Chamberlin, MD

Where I Provide Care

Primary Office
110 Free ST
Portland, ME  04101
Phone: 207-771-2004
Map & Directions
22 Bramhall ST
Portland, ME  04102
Phone: 207-662-2911
Fax: 207-662-6006
Map & Directions
Maine Medical Center - Portland
Marshall Robert Chamberlin, MD

Marshall R Chamberlin, MD

Internal Medicine

As a primary care physician I have the great privilege of building relationships with patients and accompanying them through health and illness. As I get to know a patient, together we can make decisions about their health that are aligned with their overall life priorities. In my spare time I enjoy visiting family throughout Maine, traveling to visit friends, going back to Haiti where I spent a couple formative years as a Peace Corps Volunteer, and spending time at home with my own family.

Language(s) Spoken

Education & Credentials

Education & Credentials

Board Certification

  • Internal Medicine, 2012


  • Brigham And Women's Hospital, Internal Medicine, 2012

Medical School

  • Boston University School Of Medicine, 2009
Hospital Affiliation
  • Maine Medical Center since 2015
  • Maine Medical Partners since 2015
  • MaineHealth Accountable Care Organization since 2015