
Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- English
Gender
FemaleAbout Lecia Van Dam Sequist
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 Dana-Farber Cancer Institute, where she also received an MPH from the Harvard School of Public Health. She joined the faculty 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 the Landry Family Professor of Medicine at Harvard Medical School and the Program Director of the Cancer Early Detection and Diagnostics Clinic at Mass General Cancer Center. She has held grants from the NIH, the DOD, and many private foundations. Dr. Sequist’s research focuses on studying targeted therapeutics for lung cancer and bringing new non-invasive tests like circulating tumor cells and circulating tumor DNA to treat and detect lung cancer. In her free time, she likes to spend time with her husband, two sons and her dog, and is a hockey and dance mom.
Video
Locations
- Mass General Brigham Cancer Institute Early Detection and Diagnostics Clinic at Waltham
- 52 Second Avenue, Blue Building 2nd Floor Suite 2700, Waltham, MA 02451
- Get Directions
- phone: 781-487-6212
- fax: 781-487-6201
- Mass General Brigham Cancer Institute Center for Thoracic Oncology Medical Oncology at Boston
- 32 Fruit Street, Yawkey Building, 7th Floor, Suite 7b, Boston, MA 02114
- Get Directions
- phone: 617-724-4000
- fax: 617-726-0453
Expertise
Education
- Fellowship: Brigham and Women's and Dana Farber combined program, Hematology & Medical Oncology, 2005
- Residency: Brigham and Women's Hospital, Internal Medicine, 2002
- Medical Education: Harvard Medical School, 1999
Board Certifications
- Internal Medicine: American Board of Internal Medicine, 2005
Insurance
- Aetna
- Beech Street
- Blue Cross Blue Shield
- Blue Cross Blue Shield - Indemnity
- Blue Cross Blue Shield Medicare
- Cigna
- Commonwealth Care Alliance
- Coventry
- Fallon Health
- Harvard Pilgrim Health Care
- Humana
- Maine Community Health Options
- Mass General Brigham Health Plan
- MassHealth
- Medicaid CT
- Medicaid ME
- Medicaid NH
- Medicaid RI
- Medicare
- Multiplan
- Senior Whole Health
- TriCare
- Tufts Health Plan
- Tufts Medicare Preferred
- United Health Care
- Wellpoint
- WellSense
- WellSense NH
Ratings & Reviews
4.9 out of 5
84 ratings, 38 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- Reviewed on 3/23/2026
This care provider is extremely knowledgeable astute and sensitive. This care provider always understands my concerns. She is realistic regarding the topic at hand. There are not enough words in the English language to describe the competency and thoroughness of this care provider. MGH cancer center is fortunate to have such a care provider on their team.
- Reviewed on 3/8/2026
I cannot speak more highly about my experience at Mass General thus far. Dr. [redacted] and Dr. Sequist answered all of my questions, took all the time that I needed and were very responsive for the various follow up items after our appointment. I have very high confidence in the care that they are providing to me.
- Reviewed on 3/4/2026
Excellent
- Reviewed on 2/14/2026
It was just fine, and moved along expeditiously. She was well informed and receptive.
- Reviewed on 2/26/2026
Compassionate and knowledgeable
- Reviewed on 2/4/2026
Dr. Sequist is the best. I feel extremely fortunate that she is my Oncologist. She is kind, a great communicator, and a tremendous doctor.
- Reviewed on 1/21/2026
Dr Sequest is a caring important my life.
- Reviewed on 1/23/2026
Drs Sequist and [redacted], along with their colleagues, are exceptional caregivers. I am most fortunate to have them as my care team!
- Reviewed on 1/15/2026
The care was excellent. All my question were answered and great suggestions were explained and recommended.
- Reviewed on 1/4/2026
It was an amazing visit. I left knowing exactly what the plan is
- Reviewed on 12/22/2025
Dr. Sequist is a compassionate and bright provider. She listens to my concerns and puts me in touch with the right professionals. She is an amazing oncologist and I am blessed to have her on my team.
- Reviewed on 12/21/2025
Dr. Sequist is more knowledgeable than my outgoing oncology. She also recommended a over the counter cream,in dealing my dry skin associated with the current drug I am taking curretly.
- Reviewed on 12/19/2025
Very sad to leave this specific cancer center. I am following my oncologist to MGH Boston. I will miss everyone there tremendously.
- Reviewed on 12/4/2025
Dr. Segis is very friendly and professional and the information she gives is great. And I really appreciate the work she goes through and the efforts she goes to in treating me. Thanks.
- Reviewed on 11/23/2025
Dr Sequist and Dr [redacted] are the 2 best Drs that I know.
- Reviewed on 11/19/2025
If it were not for Dr. Sequist, I probably wouldn't be where I am today, which is doing great after I had cancer.
- Reviewed on 11/10/2025
The team helping me through this is very patient oriented and listens to everything. The patient has to say and it doesn't just go in one ear and out the other like my primary care doctor that I just started with.
- Reviewed on 11/10/2025
I am most fortunate that Dr. Sequist is handling my care. She is the best!
- Reviewed on 11/9/2025
Very knowledgeable, knew my medical record, explained things thoroughly and understandably. Excellent attitude and empathy. Dr. Sequist gave me confidence that I am in good hands and that my treatment will go well. Thank you Dr. Sequidt!
- Reviewed on 10/30/2025
I find Dr. Sequist a very compassionate doctor and very warm, friendly, loving. I feel like I'm in very good hands and I have recommended her to other people just in passing and comment.
- Reviewed on 10/29/2025
Truly grateful to have access to Dr Sequist.
- Reviewed on 10/24/2025
She is a lovely attentive supportive doctor.
- Reviewed on 10/22/2025
She was very informative, caring, and knowledgeable of my situation, and I highly recommend her.
- Reviewed on 10/15/2025
Rave reviews for talented caring Dr. Sequist. She has been saving my life for six years. She is a gem.She always gives me confidence and the right guidance.I could fill this box with accolades.
- Reviewed on 10/15/2025
She knew what the appointment was for and gave me good advice and will look into my file for more information. She is an excellent Dr.
- Reviewed on 9/7/2025
Dr. Sequist is the best!
- Reviewed on 9/7/2025
Very professional and courteous
- Reviewed on 9/5/2025
The best ever, could not ask for better care
- Reviewed on 9/5/2025
Great provider, very empathetic, very warm, and thorough.
- Reviewed on 8/27/2025
I feel very safe in this Drs care.she listened to my concerns and fears and worked on creating a plan that made me feel safe about and explained and answered all my concerns and questions patiently and thoroughly. She treats the whole patient. I'm very blessed I found her
- Reviewed on 8/24/2025
The care provider was very professional and explained everything well. I was pleased with visit
- Reviewed on 8/6/2025
The doctor that I saw for my lung cancer was wonderful. I would go back to her in a minute. You're very, very lucky to have her. Tell her thank you so much for everything she did for me.
- Reviewed on 7/13/2025
Dr Sequist is a caring , intelligent physician . I travel cross country to see her because of my trust in her care .
- Reviewed on 6/23/2025
Dr. Sequist is professional, caring and has a wealth of knowledge regarding her specialty in cancer. She is an outstanding doctor and researcher.
- Reviewed on 6/18/2025
I was very happy with my experience with the doctor. She explained everything, so I understood it in layman's language. And I was very happy that she was my doctor to explain the situation to me.
- Reviewed on 6/18/2025
I am very pleased to have Dr. Lecia Sequist head my team. She's subtle, she's compassionate, she's wonderful. I couldn't ask for a better doctor. I couldn't ask for a better oncologist. That's it. It's the same week after week, month after month, visit after visit.
- Reviewed on 6/15/2025
Thorough, professional, thoughtful and experienced. I felt confident that the advice given was based on expertise gained by years of research and attention to the latest developments in the field of oncology treatments.
- Reviewed on 6/11/2025
Exceptionally professional. Expert in her field. Share info in a way we can understand.