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Dr. Peter Theodore Masiakos, MD
NPI1598749285
- Publications
- 115
- Hospital affiliations
- 1
- Medical groups
- 2
- Insurance carriers
- 5
- State license
- 1
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Masiakos' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Peter Theodore Masiakos is a general surgeon in Boston, Massachusetts
Dr. Masiakos practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Masiakos' NPI, 1598749285, was assigned on December 6, 2005. Dr. Masiakos graduated from Boston University School Of Medicine in 1994. Dr. Masiakos holds Massachusetts license 216940.
NPI and contact details
- NPI
- 1598749285NPI Registry (opens in a new tab)
- NPI enumeration date
- December 6, 2005
- NPI status
- Active
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Peter Theodore Masiakos practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Masiakos' primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Dr. Peter Theodore Masiakos is affiliated with 2 sites of care and 2 medical groups
Dr. Masiakos' primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Masiakos to 1 more community health center and 1 medical group, each named with a free account.
Massachusetts General Physicians Organization (MGPO)1 community health centerName with a free account1 medical groupName with a free account
See all 4 affiliations for Dr. MasiakosSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Peter Theodore Masiakos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Masiakos practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Masiakos practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Peter Theodore Masiakos is one of 732 general surgeons in Massachusetts
Surgery is Dr. Masiakos' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Masiakos is board certified in pediatric surgery by the American Board of Surgery. Dr. Masiakos is licensed in Massachusetts.
Specialties and state licenses
- Surgery, MassachusettsPrimary
General surgeons near Dr. Masiakos
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
732general surgeons in Massachusetts254general surgeons in Boston51general surgeons at Massachusetts General Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Peter Theodore Masiakos' patients have a median age of 16
Across all payers, Dmand AI patient panel data puts Dr. Masiakos' median patient age at 16, with 35% women.
Dr. Masiakos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 16
Patient panel by sex, all payers
- Women35%
- Men65%
Source: Dmand AI Patient Panel Data
Dr. Peter Theodore Masiakos has 115 publications on record
Dmand AI links 115 papers to Dr. Masiakos, published from 2006 to 2025. 2017 was the busiest year, with 12. The most frequent topics are Firearms, Wounds, Gunshot and Massachusetts. Dr. Masiakos has published most often in J Pediatr Surg. Dr. Masiakos' most frequent co-authors are Chana A. Sacks, MD, Cassandra Michelle Kelleher, MD and Jarone Lee, MD, MPH.
Papers115
Years published2006 to 2025
Dr. Masiakos' papers by year, 2016 to 2025
Topics Dr. Masiakos writes about most
- Firearms
- Wounds, Gunshot
- Massachusetts
- Violence
- Gun Violence
- Cervical Vertebrae
- Emergency Service, Hospital
- Pediatrics
Dr. Masiakos' most frequent co-authors
- Chana A. Sacks, MD18 shared papers
- Cassandra Michelle Kelleher, MD8 shared papers
- Jarone Lee, MD, MPH8 shared papers
Recent publications by Dr. Masiakos
Clinical CompetenceCounselingCurriculum
Conservative TreatmentIntestinal ObstructionIntestine, Small
See who Dr. Masiakos researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Masiakos works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Peter Theodore Masiakos has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Masiakos.
Awards and honors for Dr. Masiakos
- Undated
- ACS Fellow
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. Peter Theodore Masiakos graduated from Boston University School Of Medicine
Dr. Masiakos graduated from Boston University School Of Medicine in 1994. Dr. Masiakos is a member of ACS.
- Medical school
- Board certified in pediatric surgery
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Peter Theodore Masiakos accepts plans from 5 insurance carriers
Dr. Masiakos is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Massachusetts
- HCSC
- RI State Medicaid
- VT State Medicaid
Plan types Dr. Masiakos accepts, by number of carriers
- Medicare3
- HMO2
- Medicaid2
- PPO2
- EPO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Peter Theodore Masiakos's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Peter Theodore Masiakos
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Peter Theodore Masiakos' NPI number?
Dr. Peter Theodore Masiakos' NPI number is 1598749285. It was assigned on December 6, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter Theodore Masiakos?
Dr. Peter Theodore Masiakos is a general surgeon in Boston, Massachusetts. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Peter Theodore Masiakos practice?
Dr. Masiakos practices at 55 Fruit Street, Boston, MA 02114. Dr. Masiakos' primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Masiakos to 1 community health center and 1 medical group.
What is Dr. Peter Theodore Masiakos' office phone number?
The practice phone on file for Dr. Masiakos is (617) 726-2000.
What is Dr. Peter Theodore Masiakos' medical license number?
Dr. Masiakos holds Massachusetts license 216940.
Which hospitals is Dr. Peter Theodore Masiakos affiliated with?
Dr. Masiakos practices at Massachusetts General Hospital in Boston, Massachusetts.
What medical group is Dr. Peter Theodore Masiakos part of?
Dr. Masiakos is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Masiakos to 1 more medical group.
Is Dr. Peter Theodore Masiakos board certified?
Yes. Dr. Masiakos is board certified in pediatric surgery by the American Board of Surgery.
Where did Dr. Peter Theodore Masiakos go to medical school?
Dr. Masiakos graduated from Boston University School Of Medicine in 1994.
How long has Dr. Peter Theodore Masiakos been practicing?
Dr. Masiakos graduated from medical school in 1994, 32 years ago.
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Does Dr. Peter Theodore Masiakos do research?
Dmand AI links 115 publications to Dr. Masiakos, published from 2006 to 2025.
Who does Dr. Peter Theodore Masiakos publish with?
Dr. Masiakos' most frequent co-authors are Chana A. Sacks, MD (18 shared papers), Cassandra Michelle Kelleher, MD (8 shared papers) and Jarone Lee, MD, MPH (8 shared papers).
What insurance does Dr. Peter Theodore Masiakos accept?
Dr. Masiakos is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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