Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

Whitney Onstad, NP

Sees patients in Kilauea, HI · Hawaii

Summary

Whitney Onstad, NP (Nurse Practitioner) is enrolled with Medicare at 1 practice location in Kilauea, HI. NPI 1821946963. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Whitney Onstad, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
1Years since medical school (graduated 2025)
FemaleGender (as listed)

Quick answers

Where does Whitney Onstad see patients?
Medicare's clinician data lists 1 practice location in Kilauea, HI. Call before your visit to confirm the address.
What is Whitney Onstad's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Whitney Onstad accept Medicare assignment?
Yes. Medicare's clinician data says Whitney Onstad accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Whitney Onstad?
(808) 346-4717, as listed in official Medicare / NPI Registry data.
What is Whitney Onstad's NPI number?
1821946963. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Whitney Onstad is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other clinicians: Nurse Practitioner, Hawaii →

Other nurse practitioners in Kilauea

Clinicians with the same Medicare primary specialty in Kilauea, HI — not a recommendation.

All nurse practitioners in Kilauea →

Clinician information

CredentialNP
Graduation year2025
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1821946963
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians