NPI Portal NPI Lookup & Verification

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

Erika Bay, RDN, CDN

Registered Dietitian in Ossining, NY · enumerated 2022.

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

National Provider Identifier

1538871579

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Registry record

Entity type Individual (Type 1)
Name Erika Bay
Credential RDN, CDN
Sex Female
Practice address Ossining, NY, 10562
Phone (203) 402-8008
Enumeration date Dec 21, 2022
Last updated in NPPES Aug 29, 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 002279 (CT) Primary

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

Where does Erika Bay practice?
The practice location on file with NPPES is in Ossining, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Erika Bay?
The National Provider Identifier (NPI) for Erika Bay is 1538871579, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-29.