Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Claire Elizabeth Corson, M.S., RD, RDN
Registered Dietitian in Eugene, OR · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033810023
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Registry record
Entity type Individual (Type 1)
Name Ms. Claire Elizabeth Corson
Credential M.S., RD, RDN
Sex Female
Practice address 735 E 17th Ave Apt 37, Eugene, OR, 97401
Phone (321) 205-6603
Enumeration date Mar 15, 2023
Last updated in NPPES Mar 15, 2023
Taxonomy & licenses
133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License LD-D-10229594 (OR) 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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Claire Corson?
Claire Corson is registered in NPPES with the primary taxonomy of Registered Dietitian. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-15.