John R. McLaren, MD
Neurology with Special Qualifications in Child Neurology Physician · Boston, MA
John R. McLaren, MD is a neurology with special qualifications in child neurology physician with a practice address in Boston, Massachusetts, and NPI 1932637709, issued on May 24, 2017. Check the license (Massachusetts 291204, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John R. McLaren
- Credential
- MD
- Primary taxonomy
- Neurology with Special Qualifications in Child Neurology Physician 2084N0402X
- License numbers
- 291204 MA
271013 MA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Longwood Ave, Boston, MA 02115
- Phone
- (617) 355-6000
- Enumerated
- May 24, 2017
- Record last updated
- Jun 5, 2023
- Medicare enrollment
- Enrolled (PECOS I20230621000554); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest neurology with special qualifications in child neurology physician records → All 157 in Massachusetts → Look up another NPI →
Also registered at 300 Longwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sylvia Abadir, MDPediatric Cardiology Physician1427366459
- Isabel Abbott, MDNeurology with Special Qualifications in Child Neurology Physician1033772579
- Kristin Abdelnour, PTPhysical Therapist1982821302
- Mohamed Abdelrahman, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1558050591
- Nadia Abdulrazak, N.P.Adult Health Nurse Practitioner1952616682
- Dhatri AbeyaratneStudent in an Organized Health Care Education/Training Program1437098233
Verify John R. McLaren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 291204Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- C H Neurology Foundation IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John R. McLaren among 157 neurology with special qualifications in child neurology physician records in Massachusetts
John R. McLaren, MD is one of 157 neurology with special qualifications in child neurology physician records with a practice address in Massachusetts. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 85% of them.
- NPI issued2017 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2017 · median 2006 among the 87 with a school on file
- Record last updated2023 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0402X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology with Special Qualifications in Child Neurology Physician providers in Massachusetts
There are 157 neurology with special qualifications in child neurology physician records in Massachusetts.
All 157 in Massachusetts → Every provider in Boston → Neurology with Special Qualifications in Child Neurology Physician nationwide →
The 8 neurology with special qualifications in child neurology physician records with the nearest ZIP codes
- Norberto Alvarez, M.D.Boston, MA 021151740230432
- Irina Anselm, M.D.Boston, MA 021151396790788
- Ann Bergin, MDBoston, MA 021151427081280
- Blaise Bourgeois, MDBoston, MA 021151972536282
- David Coulter, M.D.Boston, MA 021151306871900
- Basil Darras, M.D.Boston, MA 021151538191309
- Frank Duffy, MDBoston, MA 021151437182508
- Mark Gorman, M.D.Boston, MA 021151881636017
Common questions
What is John R. McLaren, MD's NPI number?
John R. McLaren, MD's National Provider Identifier (NPI) is 1932637709, issued on May 24, 2017. An NPI identifies a provider in billing; it is not a license.
Where is John R. McLaren, MD located?
The NPPES record lists a practice address at 300 Longwood Ave, Boston, MA, 02115. Phone: (617) 355-6000. Providers update this record themselves, so call before visiting.
How can I verify John R. McLaren, MD's license?
NPPES lists Massachusetts license number 291204, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.