Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hilary Woollen Cedergreen, PLPC

Mental Health Counselor in Clayton, MO · enumerated 2021.

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

National Provider Identifier

1386223501

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Registry record

Entity type Individual (Type 1)

Name Hilary Woollen Cedergreen

Credential PLPC

Sex Female

Practice address 7751 Carondelet Ave, Clayton, MO, 63105

Phone (314) 323-4841

Enumeration date Apr 5, 2021

Last updated in NPPES Apr 5, 2021

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 2021011704 (MO) 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

Where does Hilary Cedergreen practice?

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

What is the NPI number for Hilary Cedergreen?

The National Provider Identifier (NPI) for Hilary Cedergreen is 1386223501, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-05.