
Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- English
Gender
MaleLocations
- Mass General Brigham Cancer Institute at Nantucket
- 57 Prospect Street, Nantucket, MA 02554
- Get Directions
- phone: 508-825-1000
- fax: 508-825-8272
- Mass General Brigham Cancer Institute Hematology Evening Clinic at Boston
- 32 Fruit Street, Yawkey Building, 7th Floor, Suite 7b, Boston, MA 02114
- Get Directions
- phone: 617-724-4000
- fax: 617-724-6801
- Mass General Brigham Cancer Institute Center for Breast Cancer Medical Oncology at Boston
- 32 Fruit Street, Yawkey Building, 9th Floor, Suite 9a, Boston, MA 02114
- Get Directions
- phone: 617-726-6500
- fax: 617-724-1079
- Mass General Brigham Cancer Institute Medical Oncology Clinic at Danvers
- 102 Endicott Street, Cancer Center Lower Level, Danvers, MA 01923
- Get Directions
- phone: 978-882-6060
- fax: 978-882-6070
Expertise
Education
- 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
- Internal Medicine: American Board of Internal Medicine, 2018
Insurance
- Aetna
- Beech Street
- Blue Cross Blue Shield
- 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
- Mass Health
- MassHealth
- Medicaid CT
- Medicaid ME
- Medicaid NH
- Medicaid NY
- Medicaid RI
- Medicaid VT
- Medicare
- Medicare ACO
- 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
183 ratings, 74 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 3/1/2026
This provider is extraordinarily aware of my situation and ready to help and meet my needs. I COULD NOT FOR A BETTER PHYSICIAN !
- Reviewed on 3/1/2026
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.
- Reviewed on 3/1/2026
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.
- Reviewed on 2/28/2026
It's a pleasure having Dr Wander as my doctor. I wouldn't change him for any other doctor.
- Reviewed on 2/18/2026
Excellent, Very Knowledgeable
- Reviewed on 2/2/2026
Personable, knowledgeable, and attentive to my needs
- Reviewed on 2/1/2026
It was a very pleasant appointment. The Doctor asked me very important questions. I was very satisfied!
- Reviewed on 2/2/2026
Dr. Wander is an amazing physician. He is the best ever.
- Reviewed on 2/1/2026
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.
- Reviewed on 1/31/2026
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!
- Reviewed on 1/5/2026
Professional and easy to discuss my situation with. Made me feel extremely comfortable.
- Reviewed on 11/24/2025
Good job keep it up
- Reviewed on 11/23/2025
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.
- Reviewed on 11/15/2025
Excellent care!
- Reviewed on 11/8/2025
Very good
- Reviewed on 11/8/2025
Always great
- Reviewed on 11/7/2025
I think Seth is unbelievably knowledgeable, caring, expedient. He's great at what he does and I'm very satisfied.
- Reviewed on 11/4/2025
I know I am in excellent hands with my Doctor.
- Reviewed on 11/4/2025
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.
- Reviewed on 11/3/2025
I visit Dr Wander once a year. He has always been a fantastic doctor to be my provider.
- Reviewed on 11/4/2025
He's the best!
- Reviewed on 10/19/2025
Dr Wander is wonderful and has really listened to me and answered all of my questions. I value his guidance a great deal.
- Reviewed on 10/13/2025
Excellent doctor and staff
- Reviewed on 10/12/2025
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.
- Reviewed on 10/12/2025
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.
- Reviewed on 10/6/2025
Get nervous about appointments. Ht rgat hs just me. !!
- Reviewed on 10/8/2025
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.
- Reviewed on 9/28/2025
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.
- Reviewed on 9/22/2025
Great doctor
- Reviewed on 9/21/2025
Everyone was friendly and knowledgeable about my care.
- Reviewed on 9/26/2025
Dr Wander is the best. Support your docs and hospital staff!
- Reviewed on 9/17/2025
I trust him.
- Reviewed on 9/15/2025
I was very satisfied with the care I received
- Reviewed on 9/15/2025
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.
- Reviewed on 9/14/2025
I am always well attended to, I have nothing to add.
- Reviewed on 9/13/2025
Dr. Wander is brilliant.
- Reviewed on 9/11/2025
I have complete confidence in Dr. Wander. He is knowledgeable, respectful, & caring. Glad to be in his care.
- Reviewed on 9/10/2025
Dr. Wander treats me as a partner in my health decisions. [redacted]
- Reviewed on 9/10/2025
Excellent Md. Professional, extremely knowledgeable and kind.
- Reviewed on 9/8/2025
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.
- Reviewed on 9/7/2025
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.
- Reviewed on 9/5/2025
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
- Reviewed on 9/3/2025
Questions were answered. And I did not feel rushed.
- Reviewed on 8/31/2025
I always ask for this provider. Continue to expand your intelligence to care for me and other patients who need care as well.
- Reviewed on 8/24/2025
Very responsive to all my questions, suggested that if anything changes to use portal to ask questions.
- Reviewed on 8/22/2025
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.
- Reviewed on 8/19/2025
Great, caring doctor who listens and explains things so I understand.
- Reviewed on 8/17/2025
Extremely professional. Very polite.
- Reviewed on 8/19/2025
I had 3 visits that day and all went off seamlessly. Everyone I met was amazing and put me at ease.
- Reviewed on 8/9/2025
He was very thorough
- Reviewed on 8/6/2025
The tech was very thoughtful of the fact that it was my first mammogram since surgery, and was very gentle.
- Reviewed on 8/3/2025
He's very attentive and thorough Easy to talk to and caring
- Reviewed on 8/2/2025
Very kind and caring. Great conversations.
- Reviewed on 7/27/2025
He was not just clearly competent sand well versed in my chart, but he was personable and friendly. He answered my questions and was thorough and coordinated with my primary and my gynecologist to change medication for my hot flashes so that I'm not on estrogen.
- Reviewed on 7/22/2025
A kind and caring physician with patience and experience who focuses on my problems and acts promptly to assess them.
- Reviewed on 7/19/2025
I always feel heard when I meet with Dr. Wander
- Reviewed on 7/19/2025
Dr. Wander is excellent. I've been with him for 5 years now and wouldn't want to see anyone else
- Reviewed on 7/19/2025
I feel I am receiving the very best of care with Dr. Wander. He is kind, knowledgeable, thoughtful and professional.
- Reviewed on 7/16/2025
I did see my oncologist, Dr. Wander fabulous, wonderful man. I went in for five years now. It is a wonderful each and every single time. I am so, so happy. I'm a veteran. I was referred to from the VA office to get surgery around my chest. And I've had my surgeon who ended up going down to South Carolina I've had Dr. Wander as my oncologist and unbelievable person, unbelievable professional. He's just great to me. I thank him.
- Reviewed on 6/23/2025
Always kind and considerate and deeply cares for his patients
- Reviewed on 6/21/2025
He was friendly and explained thoroughly I appreciate his communication skills
- Reviewed on 6/19/2025
Professional, knowledgeable, compassionate. I have complete trust in Dr. Wander
- Reviewed on 6/22/2025
Great doctor but hope I never need his knowledge Pray that I never have cancer
- Reviewed on 6/16/2025
All along the service and attention to detail and care has been exceptional !
- Reviewed on 6/15/2025
Care is superior
- Reviewed on 6/14/2025
Dr Wander always takes the time to listen to my concerns and discuss my medications.
- Reviewed on 6/4/2025
He listens and he is very knowledgeable in his area.
- Reviewed on 5/25/2025
Dr. Seth Wander is one of the most compassionate and experienced provider I have had. His team is absolutely amazing!
- Reviewed on 5/15/2025
Dr. Wander is an exceptional care provider. He is extremely knowledgeable, approachable, attentive, responsive and an excellent communicator. For the past 2 1/2 years he has overseen my breast cancer treatment, alongside a team of amazing practitioners. I was enrolled in a clinical trial, and will be forever grateful for the care and kindness shown me.
- Reviewed on 5/12/2025
I really like this doctor. He pays attention to what I say and discusses my different options
- Reviewed on 5/11/2025
Office is always busy but moves along efficiently and quickly
- Reviewed on 5/7/2025
Very knowledgeable and seemed proactive. Excellent follow up
- Reviewed on 5/7/2025
Dr. Wander is a knowledgeable, engaged professional. Very personable and responsive.
- Reviewed on 5/7/2025
It went as expected