Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catherine E Clark, NP

Family Nurse Practitioner in Denver, CO · enumerated 2006.

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

National Provider Identifier

1861573156

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Registry record

Entity type Individual (Type 1)

Name Catherine E Clark

Credential NP

Sex Female

Practice address 1701 W 72nd Ave, Denver, CO, 80221

Phone (303) 650-4460

Enumeration date Oct 17, 2006

Last updated in NPPES May 14, 2021

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 162502 (CO) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
79958061	Medicaid	CO	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Catherine Clark?

The National Provider Identifier (NPI) for Catherine Clark is 1861573156, a Type 1 (individual) record in the CMS NPPES registry.

Where does Catherine Clark practice?

The practice location on file with NPPES is in Denver, CO. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Clinica Campesina Family Health Services Federally Qualified Health Center (FQHC) · Denver, CO NPI 1548256522 Nicole Weaver Dental Hygienist · Denver, CO NPI 1477541829 Amy Simons Family Nurse Practitioner · Denver, CO NPI 1154309391 Cynthia Garcia Physician Assistant · Denver, CO NPI 1518910744 Kirk Shropshire Dentist · Denver, CO NPI 1083668727 Tamara Willis-Buckley Obstetrics & Gynecology Physician · Denver, CO NPI 1669413126 Malia Davis Adult Health Nurse Practitioner · Denver, CO NPI 1649208562 Susan Macaskill Physician Assistant · Denver, CO NPI 1790791051

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-14.