IndividualActive
John Mcwilliams, MD
NPI 1366408411 · Internal Medicine Physician · Boston, MA
John Mcwilliams, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1366408411).
Provider details
- NPI number
- 1366408411
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 223922 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
75 Francis Street
Brigham Internal Medicine Associates
Boston, MA 02115
Phone: (617) 732-6040
Street-level locationGet directions
Mailing address
75 Francis Street
Boston, MA 02115
Registry dates
- Enumerated
- 2006-04-25
- Last updated
- 2012-05-01
Frequently asked questions
- What is John Mcwilliams's NPI number?
- John Mcwilliams's National Provider Identifier (NPI) is 1366408411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mcwilliams's specialty?
- John Mcwilliams is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Mcwilliams located?
- John Mcwilliams's practice location on file with NPPES is 75 Francis Street, Boston, MA 02115.
- What is John Mcwilliams's phone number?
- The practice phone number listed in the NPPES registry for John Mcwilliams is (617) 732-6040.
- Is John Mcwilliams's NPI active?
- Yes — John Mcwilliams's NPI (1366408411) is active in the NPPES registry as of the last update on 2012-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.