NPPES file of Aug 9, 2026

Maureen Johnston, NURSE PRACTITIONER

Primary Care Nurse Practitioner · Cambridge, MA

Maureen Johnston, NURSE PRACTITIONER is a primary care nurse practitioner with a practice address in Cambridge, Massachusetts, and NPI 1699104828, issued on Nov 7, 2013. Check the license (Massachusetts RN234321, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1699104828
Name
Maureen Johnston
Credential
NURSE PRACTITIONER
Primary taxonomy
Primary Care Nurse Practitioner 363LP2300X
License number
RN234321 MA
Self-reported in NPPES; status is on the state search
Practice location
25 Carleton St, Cambridge, MA 02142
Phone
(617) 253-7625
Enumerated
Nov 7, 2013
Record last updated
Nov 7, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(617) 253-6373
Medicare enrollment
Enrolled (PECOS I20150319000631); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 25 Carleton St

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

  1. Maureen Dobrowsky, FNPFamily Nurse Practitioner1427309905
  2. Austin Egan, MDFamily Medicine Physician1689651267
  3. Shawn Ferullo, M.D.Sports Medicine (Family Medicine) Physician1962476994
  4. Andrew Fuller, M.D.Psychiatry Physician1730478728
  5. Neil Jenkins, MDPreventive Medicine/Occupational Environmental Medicine Physician1598080814
  6. Jennifer Obrien, PH.D.Psychologist1326607680

Verify Maureen Johnston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN234321    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
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Massachusetts Institute OF TechnologyCambridge, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Primary Care Nurse Practitioner providers in Massachusetts

There are 376 primary care nurse practitioner records in Massachusetts.

All 376 in Massachusetts → Every provider in Cambridge →

Other primary care nurse practitioner records in Massachusetts

  1. Joshua Abrahams, AGPCNP-BCFoxborough, MA1821764648
  2. Samantha AdamsAshburnham, MA1932756046
  3. Adeyemi Adeniyi, A-GNPRoxbury, MA1780238659
  4. Laura Aierstuck, NPEasthampton, MA1326690298
  5. Michaela Aitken, CNPMilford, MA1104495001
  6. Deidre Alessio, APRNSomerville, MA1487721882
  7. Benjamin Alfred, NPWorcester, MA1366778953
  8. James Allentuck, NPBoston, MA1578282448
  9. Deborah Anderson, NPBoston, MA1417991464
  10. Lisa Antonelli, APRNCambridge, MA1962577361

Common questions

What is Maureen Johnston, NURSE PRACTITIONER's NPI number?

Maureen Johnston, NURSE PRACTITIONER's National Provider Identifier (NPI) is 1699104828, issued on Nov 7, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Maureen Johnston, NURSE PRACTITIONER located?

The NPPES record lists a practice address at 25 Carleton St, Cambridge, MA, 02142. Phone: (617) 253-7625. Providers update this record themselves, so call before visiting.

How can I verify Maureen Johnston, NURSE PRACTITIONER's license?

NPPES lists Massachusetts license number RN234321, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.