NPPES file of Aug 9, 2026

Katelyn Castro, MS, RD, LDN

Registered Dietitian · Newton, MA

Katelyn Castro, MS, RD, LDN is a registered dietitian with a practice address in Newton, Massachusetts, and NPI 1912416066, issued on Sep 20, 2017. Check the license (Massachusetts 86031480, 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
1912416066
Name
Katelyn Castro
Credential
MS, RD, LDN
Primary taxonomy
Registered Dietitian 133V00000X
License number
86031480 MA
Self-reported in NPPES; status is on the state search
Practice location
1400 Centre St Ste 207, Newton, MA 02459
Phone
(617) 531-9906
Enumerated
Sep 20, 2017
Record last updated
Jan 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(508) 302-0507
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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8 nearest registered dietitian records → All 2,244 in Massachusetts → Look up another NPI →

Also registered at 1400 Centre St Ste 207

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

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  2. Isabella Mortenson, RDRegistered Dietitian1093388613
  3. Omolola Ogunjobi, LCSW, MSWClinical Social Worker1689332926
  4. Alexa RiccioCounselor1447144274

Verify Katelyn Castro 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 86031480    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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Katelyn Castro among 2,244 registered dietitian records in Massachusetts

Katelyn Castro, MS, RD, LDN 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 2017, is newer than 51% of them.

  • NPI issued2017 · 51% of these records are older, 45% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileNo · 9% of these records are
  • Record last updated2020 · 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).

39 registered dietitian records list a practice address in Newton

They are 39 of the 2,975 NPPES records with a practice address in Newton, and 2,244 registered dietitian records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,244 in Massachusetts → Every provider in Newton → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Meredith Berger, MS, RD, LDNNewton Center, MA 024591881911048
  2. Amy Cantor, RDNNewton Centre, MA 024591104281674
  3. Rachel CohenNewton, MA 024591700203577
  4. Stacie DeluciaNewton, MA 024591558972976
  5. Farrell FrankelNewton Centre, MA 024591609199702
  6. Megan Gerber, RD, LDNNewton, MA 024591205362100
  7. Roberta Laredo, RD, LDN, CDENewton Centre, MA 024591124124359
  8. Denise Marmillion, RD, LDNNewton Center, MA 024591770049678

Common questions

What is Katelyn Castro, MS, RD, LDN's NPI number?

Katelyn Castro, MS, RD, LDN's National Provider Identifier (NPI) is 1912416066, issued on Sep 20, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Katelyn Castro, MS, RD, LDN located?

The NPPES record lists a practice address at 1400 Centre St Ste 207, Newton, MA, 02459. Phone: (617) 531-9906. Providers update this record themselves, so call before visiting.

How can I verify Katelyn Castro, MS, RD, LDN's license?

NPPES lists Massachusetts license number 86031480, 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.