Highlights
Age Groups Seen
- Pediatrics
Languages
- Greek
- English
Gender
MaleAbout Peter T Masiakos
Peter T. Masiakos, MS, MD, FACS, FAAP, is a pediatric general and thoracic surgeon at Mass General and Associate Professor at Harvard Medical School. He was trained at the Boston City Hospital and Hospital for Sick Children (Toronto), where he developed a clinical interest in pediatric trauma care and injury prevention. He is the director of the pediatric trauma surgery service at Mass General and has become a vocal injury-prevention advocate. He has broad interest in clinical surgery with a focus on general pediatric surgery (pediatric hernia repair, hydrocele repair, repair of undescended testicles, and umbilical hernia repair), esophageal anomalies, pectus excavatum and pectus carinatum repair, thyroid surgery and pilonidal disease.
Dr. Masiakos has been involved in successfully educating the Massachusetts legislature and the US Congress on the inherent risks that certain products pose to children and has testified both at the Massachusetts State House and at the Consumer Product Safety Commission on the need for new legislation that would prohibit the use of ATVs within specific age groups. He has aided in the development and passage of several forward-thinking injury prevention laws and continues to work alongside Massachusetts legislators and the Congress on several other comprehensive injury prevention laws including junior-operator laws, safe-driving laws and child-restraint laws.
Locations
- Mass General Brigham for Children Surgery Clinic at Newton-Wellesley
- 2014 Washington Street, 6 South, Newton, MA 02462
- Get Directions
- phone: 617-726-0270
- fax: 617-726-2167
- Mass General Brigham for Children Surgery Clinic
- 55 Fruit Street, Building 11, Boston, MA 02114
- Get Directions
- phone: 617-726-0270
- fax: 617-726-2167
Expertise
Education
- Fellowship: Hospital for Sick Children, Pediatric Surgery, 2004
- Residency: Boston Medical Center (BMC), Surgery, 2002
- Fellowship: Massachusetts General Hospital, Research Fellow, 2000
- Medical Education: Boston University Medical Ctr., 1994
Board Certifications
- Pediatric Surgery: American Board of Surgery, 2006
- Surgery (General Surgery): American Board of Surgery, 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
- 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
30 ratings, 4 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 11/21/2025
We had a great experience with Dr. Masiakos. He was very patient listening to us and answered all of our questions and made us feel really safe.
- Reviewed on 9/8/2025
Our care team at NWH provided us best in class care. Dr. Masiakos, Dr. [redacted], nurses [redacted] and [redacted], [redacted] and the entire staff right down to the surgery liaison, performed their roles so well, individually and as a team. Each touchpoint was timely, well executed, and provided expertise in their subject matter. Once we had our initial meeting with Dr. Masiaskos, we were able to quickly get a surgery date to address a sore spot on our daughter's foot that was preventing her from walking on her heel. The timeliness was very helpful, especially with a playful [redacted] year old. He also invested time building a relationship with her in his relaxed office environment, connecting over horseback riding, and getting to know her as a person. This was helpful both in treating the issue, and in being able to feel like a trusted provider when a stressful situation came up in pre-op. My daughter and I were impressed by how well both her physical and emotional needs throughout the process were considered. [redacted] During the entire visit, we could not believe how well we were treated, especially given a need that seemed small in comparison to what other families might be going through. I can only imagine the level of attentiveness for patients in great need! We were so thankful for the amazing care we received at NWH and for the pediatric services available near where we live! [redacted] While we hope not to be in again any time soon, it is such a great feeling knowing resources available at NWH, including top medical talent, pediatric care, and great emotional intelligence, are available in our area.
- Reviewed on 6/6/2025
Dr. Masiakos was lovely and very informative during our appointment. He listened to all of my concerns and was a great provider to have an appointment with.
- Reviewed on 5/2/2025
A great experience with a skilled, caring physician. Best side manner with both child and parent were phenomenal.