Quick answers
- Which hospitals does Maria Oka work at?
- Medicare's official clinician data lists Maria Oka at 1 hospital: Kona Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Maria Oka see patients?
- Medicare's clinician data lists 1 practice location in Kailua Kona, HI. Call before your visit to confirm the address.
- What is Maria Oka's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Maria Oka accept Medicare assignment?
- Yes. Medicare's clinician data says Maria Oka 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 Maria Oka?
- (808) 747-8321, as listed in official Medicare / NPI Registry data.
- What is Maria Oka's NPI number?
- 1235209263. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Maria Oka works
Medicare's Facility Affiliation Data lists Maria Oka at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kona Community HospitalKealakekua, HI · Acute Care Hospital · CCN 120019
Practice locations
Addresses where Maria Oka is enrolled with Medicare (CMS data updated 2026-10-02).
- 78 -6831 Alii Dr, Suite 422Kailua Kona, HI 96740 (808) 747‑8321
Group practices
Medicare enrollment lists Maria Oka as a member of this group (CMS data updated 2026-10-02).
- Alii Health Center50 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Kailua Kona
Clinicians with the same Medicare primary specialty in Kailua Kona, HI — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235209263 |
| 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