Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Miss Sarah Whitney Clark, RD
Registered Dietitian in Denver, CO · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851328223
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Registry record
Entity type Individual (Type 1)
Name Miss Sarah Whitney Clark
Credential RD
Sex Female
Practice address 1055 Clermont St, Denver, CO, 80220
Phone (303) 399-8020
Enumeration date Jun 28, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 886692 (CO) 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 NPI 1851328223 active?
Yes, as of the latest NPPES snapshot, NPI 1851328223 is active (record last updated 2007-07-08).
How do I verify Sarah Clark's NPI record?
Cross-check NPI 1851328223 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.