NPPES file of Aug 9, 2026

Christopher A. Duffey, RN

Registered Nurse · Ayer, MA

Christopher A. Duffey, RN is a registered nurse with a practice address in Ayer, Massachusetts, and NPI 1578455754, issued on Jul 21, 2025. Check the license (Massachusetts RN2324538, 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
1578455754
Name
Christopher A. Duffey
Credential
RN
Primary taxonomy
Registered Nurse 163W00000X
License number
RN2324538 MA
Self-reported in NPPES; status is on the state search
Practice location
42 Patton RD, Ayer, MA 01434
Phone
(978) 796-1000
Enumerated
Jul 21, 2025
Record last updated
Jul 21, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 42 Patton RD

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

  1. Abigail Bowen, PSY.D.Clinical Psychologist1700617370
  2. Robyn Coons, LICSW, BCDClinical Social Worker1982185096
  3. Christina CozzaClinical Social Worker1407356421
  4. Jeremy Dautrich, PTPhysical Therapist1548119258
  5. Jeffrey Fennelly, MDGeneral Practice Physician1760770531
  6. Sandra Howard, M.D.Internal Medicine Physician1487803011

Verify Christopher A. Duffey 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 RN2324538
    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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6 registered nurse records list a practice address in Ayer

They are 6 of the 118 NPPES records with a practice address in Ayer, and 4,985 registered nurse records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other registered nurse records in Massachusetts

  1. Sabrina AbanoorBoston, MA1215818745
  2. Jennifer Abazorius, RNFitchburg, MA1467294462
  3. Kobina Abban-Saah, RNWest Roxbury, MA1770873309
  4. Adanesh AbbayCambridge, MA1639993652
  5. Naheelah Abdullah, RNQuincy, MA1124848015
  6. Mutawakilu Abdulsalam, RNWestford, MA1598249740
  7. Andrea Aberdale-SmithSpringfield, MA1871463885
  8. Brenda Abongwa, NURSEWhitinsville, MA1144951815
  9. Udo Abraham, RNBrockton, MA1265170120
  10. Nadzeya AbramovichAshland, MA1790673911

Common questions

What is Christopher A. Duffey, RN's NPI number?

Christopher A. Duffey, RN's National Provider Identifier (NPI) is 1578455754, issued on Jul 21, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Christopher A. Duffey, RN located?

The NPPES record lists a practice address at 42 Patton RD, Ayer, MA, 01434. Phone: (978) 796-1000. Providers update this record themselves, so call before visiting.

How can I verify Christopher A. Duffey, RN's license?

NPPES lists Massachusetts license number RN2324538, 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.

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.