NPPES file of Aug 9, 2026

Colleen Duddy, RDN

Registered Dietitian · East Boston, MA

Colleen Duddy, RDN is a registered dietitian with a practice address in East Boston, Massachusetts, and NPI 1457174252, issued on Nov 1, 2024. Check the license (Massachusetts LDN7340, 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
1457174252
Name
Colleen Duddy
Credential
RDN
Primary taxonomy
Registered Dietitian 133V00000X
License number
LDN7340 MA
Self-reported in NPPES; status is on the state search
Practice location
123 Webster St Apt 1, East Boston, MA 02128
Phone
(978) 760-4144
Enumerated
Nov 1, 2024
Record last updated
Nov 1, 2024
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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Verify Colleen Duddy 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 LDN7340
    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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Colleen Duddy among 2,244 registered dietitian records in Massachusetts

Colleen Duddy, RDN is one of 2,244 registered dietitian records with a practice address in Massachusetts. 6% 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 2024, is newer than 83% of them.

  • NPI issued2024 · 83% of these records are older, 11% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileNo · 9% of these records are
  • Record last updated2024 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Registered Dietitian providers in Massachusetts

There are 2,244 registered dietitian records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 registered dietitian records with the nearest ZIP codes

  1. Olivia Batryn, RDNEast Boston, MA 021281619820974
  2. Allison Carbone, RDNBoston, MA 021281588244099
  3. Anna Garrison, RDN, LDNBoston, MA 021281235944653
  4. Lauren Nickerson, RD, LDNEast Boston, MA 021281295666899
  5. Rena OudanEast Boston, MA 021281952689093
  6. Sarah Adler, MS RDN LDNBoston, MA 021271821741489
  7. Shayna Bagshaw, RDCharlestown, MA 021291962969931
  8. Brittany Berger, RDCharlestown, MA 021291043855430

Common questions

What is Colleen Duddy, RDN's NPI number?

Colleen Duddy, RDN's National Provider Identifier (NPI) is 1457174252, issued on Nov 1, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Colleen Duddy, RDN located?

The NPPES record lists a practice address at 123 Webster St Apt 1, East Boston, MA, 02128. Phone: (978) 760-4144. Providers update this record themselves, so call before visiting.

How can I verify Colleen Duddy, RDN's license?

NPPES lists Massachusetts license number LDN7340, 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.