NPPES file of Aug 9, 2026

Carolyn Ariel Duncan, FNP

Nurse Practitioner · Fairhaven, MA

Carolyn Ariel Duncan, FNP is a nurse practitioner with a practice address in Fairhaven, Massachusetts, and NPI 1437695301, issued on Jan 16, 2017. Check the license (Massachusetts RN2268325, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1437695301
Name
Carolyn Ariel Duncan
Credential
FNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
RN2268325 MA
Self-reported in NPPES; status is on the state search
Practice location
208 Mill RD, Fairhaven, MA 02719
Phone
(508) 973-2207
Enumerated
Jan 16, 2017
Record last updated
Sep 12, 2024
Fax
(508) 973-2505
Medicare enrollment
Enrolled (PECOS I20170417000806); 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 208 Mill RD

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

  1. John AcordNurse Practitioner1013531086
  2. Abena Addo, MDInternal Medicine Physician1366543225
  3. Linda Adelberg, NPAdult Health Nurse Practitioner1912146127
  4. Erica Almeida, PA-CPhysician Assistant1700326840
  5. Matthew Amaral, PA-CPhysician Assistant1891342218
  6. Patricia Andrade, MDSurgery Physician1417956426

Verify Carolyn Ariel Duncan 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 RN2268325
    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

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2.6 times the Medicare Part D claims of the average nurse practitioner in 2024

2,897 Medicare Part D claims for 593 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Carolyn Duncan2,897
  2. Specialty average1,109

Most prescribed

  1. Metoprolol Succinate357 claims
  2. Rosuvastatin Calcium230 claims
  3. Furosemide227 claims
  4. Eliquis223 claims
  5. Atorvastatin Calcium211 claims
  6. Amlodipine Besylate171 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $125.00

1 payment: food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Carolyn Duncan$125.00
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Southcoast Physicians Group IncNew Bedford, MA

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

27 nurse practitioner records list a practice address in Fairhaven

They are 27 of the 261 NPPES records with a practice address in Fairhaven, and 3,480 nurse practitioner records in Massachusetts.

Other nurse practitioner records in Massachusetts

  1. Paula Abate, NPWorcester, MA1336265909
  2. Carolyn Abbanat Villafane, NPBoston, MA1598810269
  3. Lisa Abbondanza, CNPFranklin, MA1770892630
  4. Elizabeth Abbruzzese, NPWorcester, MA1326645300
  5. Alberta Abbuah, PMHNPFramingham, MA1437873411
  6. Fatima AbdallaMelrose, MA1326407529
  7. Israh AbdeljaberWorcester, MA1912629528
  8. Erika AbeidFairhaven, MA1831084839
  9. Nina AbelowitzConcord, MA1528201704
  10. Esayas Abraham, NPChelsea, MA1851275895

Common questions

What is Carolyn Ariel Duncan, FNP's NPI number?

Carolyn Ariel Duncan, FNP's National Provider Identifier (NPI) is 1437695301, issued on Jan 16, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Carolyn Ariel Duncan, FNP located?

The NPPES record lists a practice address at 208 Mill RD, Fairhaven, MA, 02719. Phone: (508) 973-2207. Providers update this record themselves, so call before visiting.

How can I verify Carolyn Ariel Duncan, FNP's license?

NPPES lists Massachusetts license number RN2268325, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Carolyn Ariel Duncan, FNP prescribe under Medicare Part D?

In 2024, Carolyn Ariel Duncan, FNP had 2,897 Medicare Part D claims for 593 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions 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.