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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Lexie Isaacs Leightner, RD, LD

Registered Dietitian in Encinitas, CA · enumerated 2015.

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

National Provider Identifier

1437539822

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Registry record

Entity type Individual (Type 1)
Name Lexie Isaacs Leightner
Credential RD, LD
Sex Female
Practice address Encinitas, CA, 92024
Phone (202) 932-9958
Enumeration date Jun 1, 2015
Last updated in NPPES Dec 9, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 37003689A (IN) 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 Lexie Leightner?
The National Provider Identifier (NPI) for Lexie Leightner is 1437539822, a Type 1 (individual) record in the CMS NPPES registry.
Where does Lexie Leightner practice?
The practice location on file with NPPES is in Encinitas, CA. 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 2024-12-09.