Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Cynthia Seto Hartwell, MSN, APRN, WHNP-BC

Women's Health Nurse Practitioner in Honolulu, HI · enumerated 2008 · practices at Companion Dx Reference Lab- Hawaii, LLC.

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

National Provider Identifier

1154508828

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Registry record

Entity type Individual (Type 1)

Name Cynthia Seto Hartwell

Credential MSN, APRN, WHNP-BC

Sex Female

Practice address Honolulu, HI, 96813

Phone (808) 564-5977

Enumeration date Jan 24, 2008

Last updated in NPPES Jan 24, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN929 (HI) Primary

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

What is the NPI number for Cynthia Hartwell?

The National Provider Identifier (NPI) for Cynthia Hartwell is 1154508828, a Type 1 (individual) record in the CMS NPPES registry.

Where does Cynthia Hartwell practice?

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

Other providers at this practice address

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Carl-Wilhelm Vogel General Practice Physician · Honolulu, HI NPI 1306084652 Companion Dx Reference Lab- Hawaii, LLC Clinical Medical Laboratory · Honolulu, HI NPI 1992131551

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-24.