Photo of Lecia V. Sequist, MD

Lecia V. Sequist, MD


Accepting New Patients





Centers & Specialties

Cancer Center

Clinical Interests
  • Lung cancer
  • Genetic testing
  • Epidermal growth factor receptor mutation
  • Targeted therapies
  • Clinical trials
Medical Education
  • MD, Harvard Medical School
  • Residency, Brigham and Women's Hospital
  • Fellowship, Dana Farber Cancer Institute
Board Certifications
  • Medical Oncology
  • Boston: Massachusetts General Hospital
  • Waltham: Mass General West
Insurances Accepted
  • Aetna Health Inc.
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • Centene/Celticare
  • Cigna (PAL #'s)
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - ACD
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • Medicaid
  • Medicare
  • Medicare - ACD
  • Neighborhood Health Plan - ACD
  • Neighborhood Health Plan - PBO
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • Private Health Care Systems (PHCS)
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO
Patient Age Group

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Dr. Sequist is originally from Michigan and studied chemistry at Cornell University. She received her MD from Harvard Medical School and trained in internal medicine at the Brigham and Women's Hospital and in hematology/oncology at the DFCI/MGH joint program, where she also received an MPH from the Harvard School of Public Health. She joined the faculty of the Center for Thoracic Cancers at the Massachusetts General Hospital Cancer Center in 2005 and has an active clinical and translational research career, as well as a busy practice caring for patients with lung cancer. She is currently an Associate Professor of Medicine at Harvard Medical School and the Mary B. Saltonstall Endowed Chair in Oncology at MGH. Dr. Sequist's research focuses on studying novel targets and targeted agents for lung cancer treatment, particularly those that target the epidermal growth factor receptor (EGFR) and in detecting and studying the significance of tumor cells circulating in the bloodstream (circulating tumor cells, or CTCs). She aims to develop treatment algorithms for lung cancer that are more personalized than current strategies, utilizing targeted therapies specific to the patients' cancer genotypes, and understanding how this may change over the courses of the disease.

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Research & Publications


View my most recent publications at PubMed

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News & Events


55 Fruit Street
Boston MA, 02114-2696
Phone: 617-724-4000
Fax: 617-726-0453
Mass General West
52 Second Avenue
Waltham MA, 02451
Phone: 781-487-6100
Fax: 617-487-6201

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