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Gillian Grant Arathuzik, RD, LDN, CDE

Metabolic Nutrition Registered Dietitian in Boston, MA · enumerated 2006.

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

National Provider Identifier

1922023217

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Registry record

Entity type Individual (Type 1)
Name Gillian Grant Arathuzik
Credential RD, LDN, CDE
Sex Female
Practice address 1 Joslin Pl, Boston, MA, 02215
Phone (617) 309-4531
Enumeration date Jul 13, 2006
Last updated in NPPES Apr 8, 2013

Taxonomy & licenses

133VN1006X Metabolic Nutrition Registered Dietitian Dietary & Nutritional Service Providers · License 852 (MA) Primary
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 1922023217 active?
Yes, as of the latest NPPES snapshot, NPI 1922023217 is active (record last updated 2013-04-08).
How do I verify Gillian Arathuzik's NPI record?
Cross-check NPI 1922023217 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 2013-04-08.