NPPES file of Aug 9, 2026

Maureen L. Callahan, NP

Family Nurse Practitioner · Northampton, MA

Maureen L. Callahan, NP is a family nurse practitioner with a practice address in Northampton, Massachusetts, and NPI 1497633036, issued on Aug 22, 2025. Check the license (Massachusetts RN2266823, as entered in NPPES) with the Massachusetts board that licenses this profession; 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
1497633036
Name
Maureen L. Callahan
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
RN2266823 MA
Self-reported in NPPES; status is on the state search
Practice location
325B King St, Northampton, MA 01060
Phone
(413) 794-2273
Enumerated
Aug 22, 2025
Record last updated
May 28, 2026
Fax
(413) 387-4136
Medicare enrollment
Enrolled (PECOS I20260406001123); may accept 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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8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →

Also registered at 325B King St

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

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  2. Vilma Carlone, MDEndocrinology, Diabetes & Metabolism Physician1962459339
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  4. Kyle Cooper, MDCardiovascular Disease Physician1053313197
  5. Janet Curley, LICSWClinical Social Worker1376964775
  6. Kristin Dardano, MDObstetrics & Gynecology Physician1942384359

Verify Maureen L. Callahan 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 RN2266823    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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Maureen L. Callahan among 4,724 family nurse practitioner records in Massachusetts

Maureen L. Callahan, 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 not. Its NPI, issued in 2025, is newer than 92% of them.

  • NPI issued2025 · 92% of these records are older, 3% newer
  • In a Medicare fileNo · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2025 · median 2019 among the 2,704 with a school on file
  • Record last updated2026 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

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 Maureen L. Callahan, NP's NPI number?

Maureen L. Callahan, NP's National Provider Identifier (NPI) is 1497633036, issued on Aug 22, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Maureen L. Callahan, NP located?

The NPPES record lists a practice address at 325B King St, Northampton, MA, 01060. Phone: (413) 794-2273. Providers update this record themselves, so call before visiting.

How can I verify Maureen L. Callahan, NP's license?

NPPES lists Massachusetts license number RN2266823, 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. 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.