Alyssa R Letourneau, MD, MPH
Not currently accepting new patients
4.926531 average rating from 49 patient reviews
Specialties
Affiliation
Mass General Brigham
Provider Locations
- Boston, MA
Dr. Alyssa R. Letourneau earned a Bachelor of Science in neuroscience from Brown University and her M.D. from Yale University School of Medicine. She completed a combined residency in internal medicine and pediatrics at Massachusetts General Hospital, followed by a fellowship in infectious diseases at Massachusetts General Hospital and Brigham & Women's Hospital. During her training, she received the Edward Kass Award for Clinical Excellence from the Massachusetts Infectious Disease Society and earned a Master of Public Health from the Harvard School of Public Health. She then completed an additional year of advanced clinical training focused on the care of immunocompromised patients at Brigham & Women's Hospital and the Dana-Farber Cancer Institute.
Dr. Letourneau previously served for 10 years as Medical Director of the MGH Antimicrobial Stewardship Program and as co-chair of the Mass General Brigham Antimicrobial Stewardship and Infectious Diseases Quality Collaborative. She is currently a physician in the Division of Infectious Diseases at Massachusetts General Hospital and an Assistant Professor of Medicine at Harvard Medical School. She provides care to patients in both the inpatient and outpatient settings.
Her clinical interests include the care of immunocompromised patients, particularly those with leukemia or lymphoma, individuals who have undergone stem cell transplant or CAR-T therapy, and patients receiving immune-modulating therapies. She also has expertise in the management of multidrug-resistant organisms and mycobacterial infections.
In recognition of her commitment to education, Dr. Letourneau received the Mass General Brigham Infectious Disease Fellows Faculty Teaching Award in both 2021 and 2022. In 2023, she was elected a Fellow of the Infectious Diseases Society of America and was named a Top Doctor in Boston by Boston Magazine, an honor she has since received annually.
Education & Training
- Fellowship: Brigham and Women's Hospital, Infectious Disease, 2014
- Fellowship: Massachusetts General Hospital, Infectious Disease, 2012
- Residency: Massachusetts General Hospital, Internal Medicine/Pediatrics, 2010
- Medical Education: Yale University School of Medicine, 2006
Board Certifications
- Internal Medicine, American Board of Internal Medicine
- Infectious Disease, American Board of Internal Medicine
Languages Spoken
- French
- English
Age Group Treated
- Adults
Patient Feedback
4.926531 average rating from 49 reviews
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My experience with Dr. Letourn is always wonderful and she is always attentive and it shows that she really cares about me and I appreciate her very much. Thank you.
2026-08-26
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satisfied
2026-08-24
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Dr. LeTourneau is always prepared for our appointments. Our last couple visits have been via Zoom as I live 90" away. I am very appreciative of her clinical judgement and her overall preparedness and kindness.
2026-08-11
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Dr Letourneau is a kind caring physician!
2026-07-24
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Excellent
2026-07-05
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Very good experience!
2026-06-14
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Excellent
2026-05-26
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She is the most competent physician and tops in a knowledge of her specialty. She is very caring and interested in my health and well-being. She listens to what I say and is able to answer my questions without hesitation.
2026-05-25
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My Dr always spends time hearing my needs. She is very thorough
2026-05-23
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Dr Letourneau is wonderful!!!
2026-05-20
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She's very, very compassionate and easy to talk to. That's all.
2026-05-13
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She is professional, amiable, extremely understanding. She gets highest marks from me.
2026-04-13
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She listens carefully, asks questions, and advises.
2026-04-13
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Thoughtful and engaging discussion Cared about me
2026-03-23
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Fantastic doctor
2026-03-22
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Easy to talk too. Knows my medical history.
2026-03-01
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This is my 3rd visit with Dr Letourneau. She is always well prepared, I feel heard, and feel like a partner in my health care, which is extremely important to me.
2026-02-08
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Alyssa Letourneau is a fabulous doctor. I couldn't say enough about her.
2026-02-06
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Always helpful
2026-01-25
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Perfect
2025-12-16
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The best of the best. Excellent Dr.!
2025-12-15
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I see her as a consultant in addition to my regular pulmonologist, who is at Mt. Auburn Hospital. I greatly appreciate her insight and additional suggestions for my care. I put high value on her opinion.
2025-12-14
Accepted Insurance
- Tufts Medicare Preferred
- Wellpoint
- Coventry
- Tufts Health Plan
- Harvard Pilgrim Health Care
- Railroad Medicare
- Blue Cross Blue Shield
- Medicaid NH
- Humana
- Medicare
- Medicaid ME
- Fallon Health
- United Health Care
- Mass General Brigham Health Plan
- Maine Community Health Options
- Beech Street
- Multiplan
- Commonwealth Care Alliance
- Senior Whole Health
- Medicaid RI
- MassHealth
- Cigna
- Blue Cross Blue Shield Medicare
- TriCare
- WellSense
- WellSense NH
- Medicaid VT
- Aetna