Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Katherine Ellis Knight, PHD

Clinical Psychologist in Boulder, CO · enumerated 2011.

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

National Provider Identifier

1255619334

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Registry record

Entity type Individual (Type 1)

Name Dr. Katherine Ellis Knight

Credential PHD

Sex Female

Practice address 5277 Manhattan Cir, Suite 210, Boulder, CO, 80303

Phone (303) 809-8117

Enumeration date Jul 24, 2011

Last updated in NPPES Jan 27, 2017

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSYC.0004408 (CO) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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

How do I verify Katherine Knight's NPI record?

Cross-check NPI 1255619334 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1255619334 active?

Yes, as of the latest NPPES snapshot, NPI 1255619334 is active (record last updated 2017-01-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-27.