• A.B. – Dartmouth College, Hanover, NH
• MD – University of Cincinnati College of Medicine, Cincinatti, OH
• Residency – Internal Medicine - St. Luke’s-Roosevelt Hospital Center –New York, NY
• Residency - Critical Care Medicine - University of Pittsburgh, Pittsburgh, PA
• Board-Certified: Internal Medicine, Emergency Medicine, Critical Care Medicine

Dr. Semmes’ special interests are helping care for cancer patients, the role of nutrients in cancer biology, preventing dementia and depression, evidence-based medicine and mind-body medicine.

Dr. Semmes practiced Emergency Medicine in Northern Virginia for fifteen years, and is currently on staff at Mercy Hospital and the Maine Medical Center. He edits the True North Tune-Up an up-to-date monthly e-newsletter of four “bullets” linked to the clinical studies published in “peer-reviewed” medical journals. He is True North’s Director of Research and gives talks through the Education Program.

Dr. Semmes serves on the Advisory Board of the Cancer Community Center, the Medical Staff Credentials Committee and Institutional Review Board of Mercy Hospital and is a corporator of the Hospice of Southern Maine. He is also a member of Maine Medical Center’s preventive medicine taskforce and an advisory editor of Evidence-Based Integrative Medicine.