NPPES file of Aug 9, 2026

Gabriella Guillette

Social Worker · Belmont, MA

Gabriella Guillette is a social worker with a practice address in Belmont, Massachusetts, and NPI 1205551678, issued on Oct 7, 2022. Check the license 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
1205551678
Name
Gabriella Guillette
Primary taxonomy
Social Worker 104100000X
Practice location
115 Mill St, Belmont, MA 02478
Phone
(617) 855-2678
Enumerated
Oct 7, 2022
Record last updated
Oct 7, 2022
Medicare enrollment
Enrolled (PECOS I20230310002081); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 115 Mill St

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

  1. Blaise Aguirre, MDChild & Adolescent Psychiatry Physician1619936846
  2. Kayia Akoun, M.D.Psychiatry Physician1588028732
  3. Rana Alam-RomanosSocial Worker1487420311
  4. Robert Alexander, M.D.Psychiatry Physician1447526074
  5. Madeleine AllenStudent in an Organized Health Care Education/Training Program1205553971
  6. Danielle Alleven, PSY.D.Clinical Psychologist1891741153

Verify Gabriella Guillette in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck 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. Cambridge Public Health CommissionCambridge, MA

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

Gabriella Guillette among 5,517 social worker records in Massachusetts

Gabriella Guillette is one of 5,517 social worker records with a practice address in Massachusetts. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 73% of them.

  • NPI issued2022 · 73% of these records are older, 21% newer
  • In a Medicare fileYes · 5% of these records are
  • In the CMS Doctors and Clinicians fileYes · 8% of these records are
  • Graduated2020 · median 2012 among the 435 with a school on file
  • Record last updated2022 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 social worker records list a practice address in Belmont

They are 20 of the 1,008 NPPES records with a practice address in Belmont, and 5,517 social worker records in Massachusetts.

The 8 social worker records with the nearest ZIP codes

  1. Jackson ArderyBelmont, MA 024781023783107
  2. Nina Bernard, LICSWBelmont, MA 024781295217552
  3. Megan ChessiaBelmont, MA 024781033588298
  4. Johanna CollinsBelmont, MA 024781346762218
  5. Rebecca Coltin, LICSWBelmont, MA 024781043642325
  6. Deborah Fenn, LICSWBelmont, MA 024781265905210
  7. Matthew FlynnBelmont, MA 024781912532383
  8. Deborah FormanBelmont, MA 024781730661554

Common questions

What is Gabriella Guillette's NPI number?

Gabriella Guillette's National Provider Identifier (NPI) is 1205551678, issued on Oct 7, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Gabriella Guillette located?

The NPPES record lists a practice address at 115 Mill St, Belmont, MA, 02478. Phone: (617) 855-2678. Providers update this record themselves, so call before visiting.

How can I verify Gabriella Guillette's license?

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.

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.