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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Katherine Mahon, MS, RD

Nutrition Education Nutritionist in Newton, MA · enumerated 2007.

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

National Provider Identifier

1427182757

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Registry record

Entity type Individual (Type 1)
Name Mrs. Katherine Mahon
Credential MS, RD
Sex Female
Practice address 2014 Washington St, Newton, MA, 02462
Phone (617) 243-6617
Fax (617) 243-5684
Enumeration date Mar 16, 2007
Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

133NN1002X Nutrition Education Nutritionist Dietary & Nutritional Service Providers · License 887952 (MA) Primary
133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 887952 (MA) Secondary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD 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.

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Frequently asked questions

Is NPI 1427182757 active?
Yes, as of the latest NPPES snapshot, NPI 1427182757 is active (record last updated 2025-09-11).
How do I verify Katherine Mahon's NPI record?
Cross-check NPI 1427182757 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.