Zachary S Peacock, MD, DMD
Not currently accepting new patients
4.918644 average rating from 59 patient reviews
Specialties
Affiliation
Mass General Brigham
Provider Locations
- Boston, MA
Dr. Zachary Peacock is a fellowship trained pediatric oral and maxillofacial surgeon. His clinical interests are in orthognathic surgery, pediatric obstructive sleep apnea, cleft lip and palate, and dentoalveolar surgery including dental implants. His research interests include orthognathic surgery and benign pathology of the maxillofacial region. He is a diplomate of the American Board of Oral and Maxillofacial Surgery.
Originally from rural Michigan, Dr. Peacock completed his undergraduate work at Michigan State University before receiving his DMD from the Harvard School of Dental Medicine. He graduated summa cum laude, ranking first in his class. He then received his MD and completed residency training in oral and maxillofacial surgery at the University of California, San Francisco. Dr. Peacock then completed the Mass General Pediatric Oral and Maxillofacial Surgery Fellowship.
He is the chief of Department of Oral and Maxillofacial Surgery at Mass General and the chair of the Department of Oral and Maxillofacial Surgery at Harvard School of Dental Medicine. He is also co-director of the Cleft and Craniofacial Center at Mass General for Children and Shriner's Hospital for Children - Boston.
Education & Training
- Fellowship: Massachusetts General Hospital, Craniofacial Surgery, 2011
- Residency: UCSF Medical Center, General Surgery, 2010
- Internship: UCSF Medical Center, General Surgery, 2008
- Medical Education: UC San Francisco School of Medicine, 2007
- Internship: University of California San Francisco, Oral and Maxillofacial SurgerY, 2005
- Medical Education: Harvard School of Dental Medicine, 2004
Board Certifications
- Oral and Maxillofacial Surgery, American Board of Oral and Maxillofacial Surgery
Languages Spoken
- English
Age Group Treated
- Pediatrics
- Adults
- Geriatrics
Patient Feedback
4.918644 average rating from 59 reviews
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The absolute best
2026-05-28
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Great experience
2026-05-26
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Everybody there is really great, does a great job.
2026-05-22
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Dr Peacock is an excellent oral surgeon. I never realized I had a jaw issue until I got braces. I'm glad that I found Dr. Peacock because he gave me the perfect bite and changed my appearance, which at times made me self conscious. I'm very pleased with my surgery.
2026-05-22
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To be honest, the doctors who treated me were excellent, very good communication, I can only say thank you very much
2026-05-03
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Our doctor was extremely knowledgeable and professional. He seemed very busy...and stressed. The office was very efficient but there was no time for pleasantries. We were in and out... got what we needed...nothing more and nothing less.
2026-04-16
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Dr. Peacock worked me in on short notice for a new-patient visit/second opinion, which I very much appreciated. He took time to upload a CT scan from my other provider, and explained how he would approach an upcoming surgery. His feedback helped me clarify a couple of things I hadn't asked my surgeon, and gave me more certainty about the approach we're planning. He and the other doctor in his office seemed very thorough, and I would feel comfortable asking him to do surgery except I'm already working with a good surgeon for this particular issue.
2026-04-09
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Very professional and informative. I feel very comfortable and I feel they understand what I need.
2026-04-10
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There was a sense of urgency for me in addressing the issue at hand. Doctor reacted positively and we moved forward quickly
2026-04-07
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My experience with Dr. Peacock was exceptionally good. He seems very kind and certainly knowledgeable and the outcome of my surgery was flawless. It was a much better experience than I anticipated. Thank you.
2026-03-27
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Dr Peacock is very highly skilled. Dr Peacock did a complex surgery and saved the lower aveolar nerve.
2026-03-26
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There are many oral surgeons to chose from in the New England area, and I chose to work with the best. Dr. Peacock is a highly skilled surgeon who maintains high professional standards. His genuine kindness and warm demeanor made a difficult experience much easier to bear. His clear explanations, thoughtful answers to my questions, and calm reassurance before and after the procedure were deeply appreciated. I'm grateful to have been in his and his excellent staff's care and will gladly recommend Dr. Peacock to others.
2026-03-25
Accepted Insurance
- Tufts Medicare Preferred
- Wellpoint
- Medicaid ME
- MassHealth
- TriCare
- Medicaid VT
- Blue Cross Blue Shield
- Blue Cross Blue Shield Dental
- WellSense
- Commonwealth Care Alliance
- MassHealth Dental
- Fallon Health
- Met Life Dental
- Aetna
- Beech Street
- Medicaid CT
- Tufts Health Plan
- Mass General Brigham Health Plan
- WellSense NH
- Multiplan
- Medicaid NY
- Harvard Pilgrim Health Care
- Medicaid Dental NH
- Cigna
- Blue Cross Blue Shield - Indemnity
- Delta Dental
- Railroad Medicare
- Blue Cross Blue Shield Medicare
- Medicaid NH
- Medicare
- Coventry
- United Health Care
- Humana
- Senior Whole Health
- Medicaid RI