NPI Portal NPI Lookup & Verification

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

Darcy Dee Butler, RDN, LD

Registered Dietitian in Ponca City, OK · enumerated 2008.

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

National Provider Identifier

1154586253

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Registry record

Entity type Individual (Type 1)
Name Darcy Dee Butler
Credential RDN, LD
Sex Female
Practice address Ponca City, OK, 74604
Fax (580) 304-7430
Enumeration date Jul 28, 2008
Last updated in NPPES Nov 11, 2014

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 1588 (OK) 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

Is NPI 1154586253 active?
Yes, as of the latest NPPES snapshot, NPI 1154586253 is active (record last updated 2014-11-11).
How do I verify Darcy Butler's NPI record?
Cross-check NPI 1154586253 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-11.