Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Carolyn Ariel Duncan, FNP

Nurse Practitioner in Fairhaven, MA · enumerated 2017.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1437695301

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Registry record

Entity type Individual (Type 1)

Name Mrs. Carolyn Ariel Duncan

Credential FNP

Sex Female

Practice address 208 Mill Rd, Fairhaven, MA, 02719

Phone (508) 973-2207

Fax (508) 973-2505

Enumeration date Jan 16, 2017

Last updated in NPPES Sep 12, 2024

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2268325 (MA) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1437695301 active?

Yes, as of the latest NPPES snapshot, NPI 1437695301 is active (record last updated 2024-09-12).

How do I verify Carolyn Duncan's NPI record?

Cross-check NPI 1437695301 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Patricia Andrade Surgery Physician · Fairhaven, MA NPI 1417956426 Joseph Costa Family Medicine Physician · Fairhaven, MA NPI 1114914181 David Chesney Internal Medicine Physician · Fairhaven, MA NPI 1396732418 Gary Grosart Internal Medicine Physician · Fairhaven, MA NPI 1689661704 Drew Nahigyan Family Medicine Physician · Fairhaven, MA NPI 1518954650 Theodore Schafer Gastroenterology Physician · Fairhaven, MA NPI 1609851591 Tammy Gleeson Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Fairhaven, MA NPI 1023085214 Alexandra Armitage Psychiatric/Mental Health Nurse Practitioner · Fairhaven, MA NPI 1174583025

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-12.