John Mclaren, MD
NPI 1932637709 · Neurology with Special Qualifications in Child Neurology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Epileptologists · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Mclaren, MD is a Neurology with Special Qualifications in Child Neurology Physician provider in Boston, MA (NPI 1932637709).
Provider details
- NPI number
- 1932637709
- Entity type
- Individual
- Primary specialty
- Neurology with Special Qualifications in Child Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 271013 (MA)
Specialties & taxonomies
- Neurology with Special Qualifications in Child Neurology PhysicianPrimary2084N0402XLicense 291204 (MA)
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- Massachusetts General Hospital55 Fruit St.Boston, MA 02114Phone: (617) 726-2000
Registry dates
- Enumerated
- 2017-05-24
- Last updated
- 2023-06-05
- Certified
- 2023-06-05
Frequently asked questions
- What is John Mclaren's NPI number?
- John Mclaren's National Provider Identifier (NPI) is 1932637709, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mclaren's specialty?
- John Mclaren is listed in the NPPES registry with a primary specialty of Neurology with Special Qualifications in Child Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is John Mclaren located?
- John Mclaren's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is John Mclaren's phone number?
- The practice phone number listed in the NPPES registry for John Mclaren is (617) 355-6000.
- Does John Mclaren accept Medicare?
- John Mclaren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Mclaren's NPI active?
- Yes — John Mclaren's NPI (1932637709) is active in the NPPES registry as of the last update on 2023-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.