Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joanne Williams, APRN, PMHNP-BC, RN

Psychiatric/Mental Health Nurse Practitioner in Honolulu, HI · enumerated 2023.

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

National Provider Identifier

1154198729

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Joanne Williams

Credential APRN, PMHNP-BC, RN

Sex Female

Practice address 438 Hobron Ln, Honolulu, HI, 96815

Phone (808) 941-9648

Fax (808) 204-9798

Enumeration date Dec 5, 2023

Last updated in NPPES Dec 26, 2024

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN-4372-0 (HI) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
APRN-4372-0	Other	HI	APRN LICENSE

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 Joanne Williams practice?

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

What is the NPI number for Joanne Williams?

The National Provider Identifier (NPI) for Joanne Williams is 1154198729, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-26.