NPPES file of Aug 9, 2026

Benjamin Samuel Duffy, NP

Family Nurse Practitioner · Northampton, MA

Benjamin Samuel Duffy, NP is a family nurse practitioner with a practice address in Northampton, Massachusetts, and NPI 1083487417, issued on Nov 7, 2023. Check the license (Massachusetts RN2261279, 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
1083487417
Name
Benjamin Samuel Duffy
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
RN2261279 MA
Self-reported in NPPES; status is on the state search
Practice location
325B King Street, Northampton, MA 01060
Phone
(413) 387-4101
Enumerated
Nov 7, 2023
Record last updated
Apr 3, 2025
Fax
(413) 387-4119
Medicare enrollment
Enrolled (PECOS I20250305003186); 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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8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →

Also registered at 325B King Street

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

  1. Albert Agomaa, M.D.Family Medicine Physician1104076793
  2. Grant Dawson, M.D.Family Medicine Physician1568648749
  3. Joyce Duncan, MDFamily Medicine Physician1770559296
  4. Marisela Fermin-Schon, MSN, FNP-CFamily Nurse Practitioner1568871325
  5. Adam Garretson, MDFamily Medicine Physician1912998915
  6. Grace May Goncero, MDFamily Medicine Physician1508038829

Verify Benjamin Samuel Duffy 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 RN2261279    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. Baystate Medical Practices IncNorthampton, MA

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

Benjamin Samuel Duffy among 4,724 family nurse practitioner records in Massachusetts

Benjamin Samuel Duffy, NP is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 79% of them.

  • NPI issued2023 · 79% of these records are older, 14% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2024 · median 2019 among the 2,704 with a school on file
  • Record last updated2025 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

23 family nurse practitioner records list a practice address in Northampton

They are 23 of the 1,816 NPPES records with a practice address in Northampton, and 4,724 family nurse practitioner records in Massachusetts.

All 4,724 in Massachusetts → Every provider in Northampton → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Marisela Fermin-Schon, MSN, FNP-CNorthampton, MA 010601568871325
  2. Glenda Flynn, NPNorthampton, MA 010601023030558
  3. Michelle Goulet, FNPNorthampton, MA 010601609847565
  4. Kate Hamilton, NPNorthampton, MA 010601346873304
  5. Jenifer Hanrahan, APRNNorthampton, MA 010601831383322
  6. Barbara Henrichon, RN MS APRN BC FNPNorthampton, MA 010601508051558
  7. Katherine Kelly, FNPNorthampton, MA 010601528307816
  8. Kelly Malone, FNP-BCNorthampton, MA 010601255880753

Common questions

What is Benjamin Samuel Duffy, NP's NPI number?

Benjamin Samuel Duffy, NP's National Provider Identifier (NPI) is 1083487417, issued on Nov 7, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Benjamin Samuel Duffy, NP located?

The NPPES record lists a practice address at 325B King Street, Northampton, MA, 01060. Phone: (413) 387-4101. Providers update this record themselves, so call before visiting.

How can I verify Benjamin Samuel Duffy, NP's license?

NPPES lists Massachusetts license number RN2261279, 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.