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Jillian Nielsen, RD, CSP, LD, CNSC

Registered Dietitian in Biddeford, ME · enumerated 2023.

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

National Provider Identifier

1255109054

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Registry record

Entity type Individual (Type 1)
Name Jillian Nielsen
Credential RD, CSP, LD, CNSC
Sex Female
Practice address 322 Elm St Ste 201, Biddeford, ME, 04005
Phone (207) 358-9887
Fax (844) 903-4677
Enumeration date Dec 12, 2023
Last updated in NPPES Dec 12, 2023

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License DI1637 (ME) 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

What is the NPI number for Jillian Nielsen?
The National Provider Identifier (NPI) for Jillian Nielsen is 1255109054, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jillian Nielsen practice?
The practice location on file with NPPES is in Biddeford, ME. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-12.