Quick answers
- Which hospitals does Henry M. Keiser work at?
- Medicare's official clinician data lists Henry M. Keiser at 2 hospitals: Samuel Mahelona Memorial Hospital and Wilcox Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Henry M. Keiser see patients?
- Medicare's clinician data lists 1 practice location in Kapaa, HI. Call before your visit to confirm the address.
- What is Henry M. Keiser's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Henry M. Keiser accept Medicare assignment?
- Yes. Medicare's clinician data says Henry M. Keiser 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 Henry M. Keiser?
- (808) 822-4961, as listed in official Medicare / NPI Registry data.
- What is Henry M. Keiser's NPI number?
- 1306353016. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Henry M. Keiser works
Medicare's Facility Affiliation Data lists Henry M. Keiser at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Samuel Mahelona Memorial HospitalKapaa, HI · Critical Access Hospital · CCN 121306
- Wilcox Memorial HospitalLihue, HI · Acute Care Hospital · CCN 120014
Practice locations
Addresses where Henry M. Keiser is enrolled with Medicare (CMS data updated 2026-10-02).
- 4800 Kawaihau RdKapaa, HI 96746 (808) 822‑4961
Group practices
Medicare enrollment lists Henry M. Keiser as a member of this group (CMS data updated 2026-10-02).
- Samuel Mahelona Memorial Hospital47 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Hawaii
Clinicians with the same Medicare primary specialty in Hawaii — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306353016 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians