
Highlights
Age Groups Seen
- Pediatrics
Languages
- English
Gender
MaleLocations
- Massachusetts General West Medical Group Pediatrics Clinic
- 52 Second Avenue, Green Building, Suite 400, Waltham, MA 02451
- Get Directions
- phone: 781-487-4340
- fax: 781-487-4341
Expertise
Education
- Residency: Rainbow Babies And Children's Hosp, 1995
- Internship: Rainbow, 1992
- Medical Education: University of Vermont College Of Medicine, 1991
Board Certifications
- Pediatrics: American Board of Pediatrics, 1995
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
- MassHealth
- MassHealth ACO
- Medicaid ME
- Medicaid NH
- Medicaid RI
- Medicaid VT
- Medicare
- Multiplan
- Railroad Medicare
- TriCare
- Tufts Health Plan
- United Health Care
- Wellpoint
- WellSense
- WellSense NH
Ratings & Reviews
4.8 out of 5
73 ratings, 16 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 1/29/2026
I did feel he was a little rushed, but we also had no big concerns, just a physical. Friendly as always, tries to make my nervous kids comfortable.
- Reviewed on 1/3/2026
Dr Nishiyama is outstanding and takes great care with my child.
- Reviewed on 12/31/2025
It was very efficient
- Reviewed on 12/14/2025
We love Dr. Stephen. He is great with my son and always checks in with me as well. We always feel so cared for when we see him.
- Reviewed on 12/11/2025
They are great team of care givers in that office.
- Reviewed on 12/11/2025
we've seen Dr Nishiyama for years at this point, but i must say this visit for our physical I felt quite rushed and not given enough time/opportunity to ask about my concerns. There was nothing too serious, but I feel he usually allows time for me (mom) to discuss any concerns, this time he just jumped into physical exam and i was forced to ask questions quickly while he did that. [redacted] I left feeling like I may need to email some of my concerns since we didn't really discuss. Hoping it was a one off experience.
- Reviewed on 12/11/2025
Awesome doctor.
- Reviewed on 11/28/2025
Dr. Nishiyama is excellent with patients that have special needs. Both my children have autism and he's always been very good with them. [redacted]
- Reviewed on 10/29/2025
Very professional and knowledgeable known him for 30plus years.
- Reviewed on 10/11/2025
Dr. Nishiyama is so Kind and compassionate, my kids feel at ease with him. He engages them and makes them laugh so hard. They look forward to seeing him cause he speaks to them at their level and lightens the moment. I trust him with my kids as well as his nurses. My kids have been coming to MGH west since birth.
- Reviewed on 10/8/2025
Dr Nishiyama saw my daughter for a shoulder injury. She is a swimmer. He was AMAZING at talking to my daughter on why she needs to take care of this injury and not start back swimming too soon. He asked her if she considered herself an athlete and she said yes. He said true athletes take care of their body and listen to their body. They feel their bodies healthy foods and rest when they need to. He asked if she wanted to continue to swim and someday compete at a higher level like high school and college. She said yes. Well then you need to not swim and rest your shoulder otherwise you won't be able to continue swimming at the level you dream about. I just thought this was a fantastic approach to a [redacted] year old and have been sharing this story all weekend with other parents! I am so grateful!
- Reviewed on 9/29/2025
Dr. Nishiyama is a fantastic pediatrician. He was my pediatrician and I was able to get him for my first son. I'm thrilled with the care. He puts our mind at ease and gives us helpful information.
- Reviewed on 9/24/2025
Dr. Nishiyama and his staff are wonderful!
- Reviewed on 9/18/2025
Dr. Nishiyama is an incredibly thoughtful, kind, caring physician who knows us well and takes very good care of our children. Thank you.
- Reviewed on 7/24/2025
I have been seeing Dr. Nishiyama for almost two decades now and have had nothing but positive experiences in his office. From the first time when I saw him as a second-grader to now being in medical school myself, he has always addressed all of my concerns thoroughly and explained things in ways that were very easy to understand. I am so lucky to have such an amazing provider!
- Reviewed on 6/11/2025
He is very good with children and we always feel like we are in good hands.