Seth A Wander, MD, PhD

Seth A Wander, MD, PhD

Not currently accepting new patients

4.877083 average rating from 192 patient reviews

Specialties

Affiliation

Mass General Brigham

Provider Locations

  • Danvers, MA
  • Nantucket, MA
  • Boston, MA

Dr. Seth Wander is a medical oncologist at the Massachusetts General Hospital with a clinical and translational research interest in breast cancer and cancer genomics. Dr. Wander completed his undergraduate degree at Cornell University, where he studied Molecular and Cell Biology and graduated magna cum laude with distinction in research. He pursued his MD and PhD in Cancer Biology at the University of Miami. Dr. Wander completed his internship and residency in internal medicine at the Massachusetts General Hospital and his fellowship training in medical oncology at the Dana-Farber Cancer Institute and the Massachusetts General Hospital Cancer Center.

Dr. Wander serves as the Director of Translational Research for the Breast Oncology Program, where he leads a multidisciplinary team focused upon leveraging genetic and molecular sequencing results to understand how cancers become resistant to standard therapies in order to develop novel, personalized treatment strategies. Dr. Wander has published more than seventy peer-reviewed manuscripts in the field of precision medicine and continues to present educational sessions and original research nationally and internationally related to drug resistance and the development of personalized therapy for breast cancer. Dr. Wander is an Assistant Professor of Medicine at Harvard Medical School and remains engaged in teaching medical students, residents, and fellows. He was a recipient of the 2017 Dana-Farber Cancer Institute Wong Family Translational Research Award and a 2018 recipient of the Conquer Cancer Foundation/American Society of Clinical Oncology Young Investigator Award. As the Director of Precision Medicine in the Termeer Center for Targeted Therapies, he leads efforts across the MGH Cancer Center to promote novel and innovative research leveraging emerging genetic sequencing technologies to both understand resistance to cancer therapies and inform the design of new clinical trials. Dr. Wander's research has helped to shape our understanding of drug resistance in metastatic breast cancer, and he continues to lead a variety of clinical trials, across all phases of drug development, focused upon developing new, personalized treatment options for patients with breast cancer.

Education & Training

  • Fellowship: Dana Farber Cancer Institute*, Medical Oncology, 2019
  • Fellowship: Massachusetts General Hospital, Hematology/Oncology, 2018
  • Residency: Massachusetts General Hospital, Internal Medicine, 2015
  • Internship: Massachusetts General Hospital, Internal Medicine, 2014
  • Medical Education: University of Miami School of Medicine, 2013

Board Certifications

  • Medical Oncology, American Board of Internal Medicine

Languages Spoken

  • English

Age Group Treated

  • Adults

Patient Feedback

4.877083 average rating from 192 reviews

  • Dr. Wander is personable and easy to talk to and I am very comfortable being in his care and with his level of expertise.

    2026-07-05

  • As always Dr. Wander was wonderful and was very thorough and knowledgeable about my situation and history. I would recommend him to anyone in need of an oncologist without hesitation

    2026-07-04

  • Very good

    2026-06-03

  • Very sympathetic And. Caring

    2026-05-31

  • Excellent, they treated me very well, they are very kind and courteous. Very good.

    2026-05-20

  • Very efficient

    2026-05-19

  • The doctor covered all questions, prescriptions & concerns with professional care.

    2026-05-17

  • Dr. Wander is the provider who supports me best. He assists me with any problems I face so that I remain healthy and well. He knows and remembers every detail about my medical condition. I feel he cares for me as a human as well as a patient. Many thanks !

    2026-05-16

  • Dr. Wander listens attentively. I have complete in him. He has taken very good care of me.

    2026-05-11

  • Excellent doctor.

    2026-05-09

  • I am very comfortable & extremely satisfied with this provider.

    2026-05-04

  • Sees the whole person.

    2026-04-26

  • Dr. Wander was amazing, very thorough, provided next steps. He was very friendly, calm and spoke in ways that my husband could understand (I'm in the medical field so I was fine). He is a fantastic doctor and would highly recommend him!

    2026-04-24

  • No matter how busy always feel taken care of here

    2026-04-20

  • Dr Wander is the best.

    2026-04-19

  • Excellent doctor an cares about his pt

    2026-04-14

  • Always so kind explains everything so I understand it.

    2026-04-12

  • Excellent

    2026-04-11

  • Dr. Wander amazes me. He is very thorough and professional - and knowledgeable! - yet also is kind, listens to me, gives me time for questions and genuinely knows my case and cares about the outcome.

    2026-04-08

  • Caring. Kind. Explaining and answering my concerns and questions. Excellent Helpful. Supportive. Helped eased my anxiety and stress. Has a sweet gentle spirit. Thankful. Grateful. Blessed!!!

    2026-04-05

  • Dr. Wander is brilliant and nice.

    2026-04-04

  • Professional staff

    2026-04-04

  • Dr. Wander is extremely knowledgeable and able to explain things at a level that we share and I am very fortunate to have him.

    2026-03-25

  • Dr Wander was very patient, empathetic and hopeful with my mother who is [redacted] and hard of hearing. The virtual visit worked better than in person because she lip reads and everyone wears a mask in the hospital. This should be considered with elderly hard of hearing patients. Dr Wander gave her clear options and really raised her spirits which have been very low. We consider ourselves fortunately to have him as our physician.( written by daughter)

    2026-03-22

  • I have seen Dr. Wander since [redacted]. He is a true professional, very informed and patient and explains things in a way that you understand. I'm very lucky to have him as my oncologist.

    2026-03-23

  • Dr. Wander is professional, capable, speaks with compassion and experience. I am very grateful for his excellent care.

    2026-03-11

  • I was very happy with him.

    2026-03-10

  • This provider is extraordinarily aware of my situation and ready to help and meet my needs. I COULD NOT FOR A BETTER PHYSICIAN !

    2026-03-01

  • Dr. Wander is a caring professional. He always asks questions about how I'm doing and takes into account my other health conditions as to my overall health.

    2026-03-01

  • I have worked with Dr. Wander since 2021 and he is dedicated to enabling me to live as fully a life as possible with metastatic breast cancer. On his recommendation, I was involved in 2 clinical trials at MA General and I appreciated the team's surveillance. He makes himself reachable and with certainty, he answers my Portal questions or phone calls in a timely manner. He knows me, my medical history and my health intentions for the future. He is organized in my appointments; he gathers information (side effects, new medicines, listens to my living experiences between appointments), he sets up any tests, scans or referrals and when asked, will share the new treatment strategies and medicines from his research or other clinical trials. He actively engages my husband and HCP, answering questions from both of us. One of Dr. Wander's strengths is that he treats me and my disease as individual and unique, with no assumptions and communicates with other providers to ensure I have consistent care and follow-up. I really appreciate his "smarts" and dedication to confronting my cancer disease's twists and turns.

    2026-03-01

  • It's a pleasure having Dr Wander as my doctor. I wouldn't change him for any other doctor.

    2026-02-28

  • Excellent, Very Knowledgeable

    2026-02-18

  • Personable, knowledgeable, and attentive to my needs

    2026-02-02

  • It was a very pleasant appointment. The Doctor asked me very important questions. I was very satisfied!

    2026-02-01

  • Dr. Wander is an amazing physician. He is the best ever.

    2026-02-02

  • Dr. Wander is the best! He listens to my concerns and discusses options. Dr. Wander makes you his priority for the visit. Thank you Dr. Wander.

    2026-02-01

  • My provider is consummately professional, extremely knowledgeable, kind and caring. I know I am in the best hands and receiving the highest level of care!

    2026-01-31

  • Professional and easy to discuss my situation with. Made me feel extremely comfortable.

    2026-01-05

  • Good job keep it up

    2025-11-24

  • Dr Wander has been wonderful. He is caring, smart, and includes me in on decisions. I am happy he is my provider. [redacted] everyone is great and helpful. Thank you.

    2025-11-23

  • Excellent care!

    2025-11-15

  • Very good

    2025-11-08

  • Always great

    2025-11-08

  • I think Seth is unbelievably knowledgeable, caring, expedient. He's great at what he does and I'm very satisfied.

    2025-11-07

  • I know I am in excellent hands with my Doctor.

    2025-11-04

  • Dr Wander is attentive and follows-up on all questions and concerns. He has made excellent referrals for other specialists and continues to communicate with them around mutual issues.

    2025-11-04

  • I visit Dr Wander once a year. He has always been a fantastic doctor to be my provider.

    2025-11-03

  • He's the best!

    2025-11-04

  • Dr Wander is wonderful and has really listened to me and answered all of my questions. I value his guidance a great deal.

    2025-10-19

  • Excellent doctor and staff

    2025-10-13

  • I appreciate your attention and insight into my case, as well as your concern in referring me to various specialists. Thank you very much. God bless you.

    2025-10-12

  • I feel lucky to have D. Wander as my oncologist. Despite his crowded schedule he is always attentive and keeps updated with all my health issues.

    2025-10-12

  • Get nervous about appointments. Ht rgat hs just me. !!

    2025-10-06

  • Dr. Wander is very, very respectful and listens to the needs of the patient. Always very responsive, very professional. Nothing but the best to say about him.

    2025-10-08

  • My call with Dr.Wander really helped me decide to participate in the trial vs go with standard options. He answered my questions thoroughly and took the time to make sure I was comfortable with moving forward.

    2025-09-28

  • Great doctor

    2025-09-22

  • Everyone was friendly and knowledgeable about my care.

    2025-09-21

  • Dr Wander is the best. Support your docs and hospital staff!

    2025-09-26

  • I trust him.

    2025-09-17

  • I was very satisfied with the care I received

    2025-09-15

  • Dr. Seth Wander is a terrific doctor. He listens, answers all questions and I've enjoyed working with him the last 6 months plus. Dr. Wander exemplifies the background, experience and ability to talk comfortably and easily on all information related to breast cancer. I am greatful to have him as part of my team.

    2025-09-15

  • I am always well attended to, I have nothing to add.

    2025-09-14

  • Dr. Wander is brilliant.

    2025-09-13

  • I have complete confidence in Dr. Wander. He is knowledgeable, respectful, & caring. Glad to be in his care.

    2025-09-11

  • Dr. Wander treats me as a partner in my health decisions. [redacted]

    2025-09-10

  • Excellent Md. Professional, extremely knowledgeable and kind.

    2025-09-10

  • Very thorough, kind, attentive. This was the first visit, and i feel very confident that i am in the best hands with him and the team.

    2025-09-08

  • Dr. Wander is a wonderful oncologist who is professional, knowledgeable and patient. He is sincere and honest. I am very happy he is my oncologist.

    2025-09-07

  • I have been under Dr. Wanders' care for the past seven years; as I was diagnosed and treated for breast cancer. Dr. Wander is absolutely tops in his field; his caring demeanor and positive attitude instill confidence in a complete recovery

    2025-09-05

  • Questions were answered. And I did not feel rushed.

    2025-09-03

  • I always ask for this provider. Continue to expand your intelligence to care for me and other patients who need care as well.

    2025-08-31

  • Very responsive to all my questions, suggested that if anything changes to use portal to ask questions.

    2025-08-24

  • I just wanted to say they were excellent. I was so, they were, I can't say enough about them. I'm sorry, I have COPD, can't really talk. They were excellent, wonderful. I felt, I was in a panic going there, and when I went there, they were all ready for me. I can't say enough about them, they were excellent. I was so pleased. I wasn't in a panic. I didn't have anxiety. It made me so comfortable. They got everything done. There was more than one team of nurses. I felt 100% they were awesome. I can't say enough about them.

    2025-08-22

  • Great, caring doctor who listens and explains things so I understand.

    2025-08-19

  • Extremely professional. Very polite.

    2025-08-17

  • I had 3 visits that day and all went off seamlessly. Everyone I met was amazing and put me at ease.

    2025-08-19

Accepted Insurance

  • Mass Health
  • Tufts Medicare Preferred
  • Wellpoint
  • United Health Care
  • Coventry
  • Tufts Health Plan
  • Fallon Health
  • Mass General Brigham Health Plan
  • Medicaid NY
  • Commonwealth Care Alliance
  • WellSense
  • Medicaid ME
  • Medicaid CT
  • Cigna
  • TriCare
  • Harvard Pilgrim Health Care
  • Blue Cross Blue Shield
  • Maine Community Health Options
  • Medicaid RI
  • Senior Whole Health
  • Medicare
  • Multiplan
  • Medicaid VT
  • MassHealth
  • Humana
  • Medicaid NH
  • Beech Street
  • Blue Cross Blue Shield Medicare
  • WellSense NH
  • Aetna
  • Medicare ACO