Margaret Peterson, PA
NPI 1386609766 · Physician Assistant · Boston, MA
Margaret Peterson, PA is a Physician Assistant provider in Boston, MA (NPI 1386609766).
Provider details
- NPI number
- 1386609766
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 191 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Margaret Peterson's NPI number?
- Margaret Peterson's National Provider Identifier (NPI) is 1386609766, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Peterson's specialty?
- Margaret Peterson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Peterson located?
- Margaret Peterson's practice location on file with NPPES is 120 Boylston St, Boston, MA 02116-4624.
- What is Margaret Peterson's phone number?
- The practice phone number listed in the NPPES registry for Margaret Peterson is (617) 824-8666.
- Is Margaret Peterson's NPI active?
- Yes — Margaret Peterson's NPI (1386609766) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.