Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Charles Leonard St.Louis Jr., RN

Child & Adolescent Psychiatric/Mental Health Registered Nurse in Ewa Beach, HI · enumerated 2008.

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

National Provider Identifier

1679723183

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Registry record

Entity type Individual (Type 1)

Name Mr. Charles Leonard St.Louis Jr.

Credential RN

Sex Male

Practice address 91-2301 Old Ft Weaver Rd, Ewa Beach, HI, 96706

Phone (808) 671-8511

Fax (808) 677-2570

Enumeration date Sep 22, 2008

Last updated in NPPES Apr 13, 2015

Taxonomy & licenses

163WP0807X Child & Adolescent Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License RN29661 (HI) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Charles St.Louis practice?

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

What is the NPI number for Charles St.Louis?

The National Provider Identifier (NPI) for Charles St.Louis is 1679723183, 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 2015-04-13.