NPPES file of Aug 9, 2026

P Reed Larsen, MD

Endocrinology, Diabetes & Metabolism Physician · Boston, MA

P Reed Larsen, MD is an endocrinology, diabetes & metabolism physician with a practice address in Boston, Massachusetts, and NPI 1700842952, issued on Apr 25, 2006. Check the license (Massachusetts 37485, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700842952
Name
P Reed Larsen
Credential
MD
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
37485 MA
Self-reported in NPPES; status is on the state search
Practice location
77 Avenue Louis Pasteur, Boston, MA 02115
Phone
(617) 525-5150
Enumerated
Apr 25, 2006
Record last updated
May 4, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(617) 731-4718
Medicaid ID
2038676 MA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 77 Avenue Louis Pasteur

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Raja-Elie Abdulnour, MDPulmonary Disease Physician1598819393
  2. Stephen Blacklow, M.D.Clinical Pathology/Laboratory Medicine Physician1982662805
  3. Daniel Brown, M.D.Pediatric Rheumatology Physician1043456510
  4. Sherrie Divito, MD, PHDDermatology Physician1932493830
  5. Natasha Frank, MDInternal Medicine Physician1497722201
  6. Bradley Maron, M.D.Cardiovascular Disease Physician1962490417

Verify P Reed Larsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 37485
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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Endocrinology, Diabetes & Metabolism Physician providers in Massachusetts

There are 522 endocrinology, diabetes & metabolism physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other endocrinology, diabetes & metabolism physician records in Massachusetts

  1. Alice Abbott, MDLeeds, MA1922096205
  2. Adham Abdel Mottalib, MDBoston, MA1740774892
  3. Aya Abou El Nasr El Bassatne, M.D.Boston, MA1922674134
  4. Tobin Abraham, M.D.Chestnut Hill, MA1568629376
  5. Martin Abrahamson, M.D.Boston, MA1336254226
  6. Ana Paula Abreu Metzger, M.D., PHDBoston, MA1548632359
  7. Gail Adler, MD PHDBoston, MA1780675280
  8. Sara Ahmadi, M.D.Boston, MA1700082617
  9. Alexandra Albert, MD PHDWorcester, MA1164059127
  10. Erik Alexander, MDBoston, MA1285692376

Common questions

What is P Reed Larsen, MD's NPI number?

P Reed Larsen, MD's National Provider Identifier (NPI) is 1700842952, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is P Reed Larsen, MD located?

The NPPES record lists a practice address at 77 Avenue Louis Pasteur, Boston, MA, 02115. Phone: (617) 525-5150. Providers update this record themselves, so call before visiting.

How can I verify P Reed Larsen, MD's license?

NPPES lists Massachusetts license number 37485, 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. 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.