IndividualActive
James Macarthur, PA
NPI 1942963574 · Physician Assistant · Boston, MA
James Macarthur, PA is a Physician Assistant provider in Boston, MA (NPI 1942963574).
Provider details
- NPI number
- 1942963574
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- PA8400 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Established profile(61/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
300 Longwood Ave
Boston, MA 02115-5724
Phone: (617) 355-6000
Street-level locationGet directions
Mailing address
300 Longwood Ave
Boston, MA 02115-5724
Registry dates
- Enumerated
- 2021-10-20
- Last updated
- 2021-12-13
- Certified
- 2021-12-13
Frequently asked questions
- What is James Macarthur's NPI number?
- James Macarthur's National Provider Identifier (NPI) is 1942963574, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Macarthur's specialty?
- James Macarthur is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is James Macarthur located?
- James Macarthur's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is James Macarthur's phone number?
- The practice phone number listed in the NPPES registry for James Macarthur is (617) 355-6000.
- Is James Macarthur's NPI active?
- Yes — James Macarthur's NPI (1942963574) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.