Quick answers
- Which hospitals does Charles Okamura work at?
- Medicare's official clinician data lists Charles Okamura at 1 hospital: Hilo Benioff Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Charles Okamura see patients?
- Medicare's clinician data lists 1 practice location in Hilo, HI. Call before your visit to confirm the address.
- What is Charles Okamura's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Charles Okamura accept Medicare assignment?
- Yes. Medicare's clinician data says Charles Okamura 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 Charles Okamura?
- (808) 935-2112, as listed in official Medicare / NPI Registry data.
- What is Charles Okamura's NPI number?
- 1427254192. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Charles Okamura works
Medicare's Facility Affiliation Data lists Charles Okamura at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hilo Benioff Medical CenterHilo, HI · Acute Care Hospital · CCN 120005
Practice locations
Addresses where Charles Okamura is enrolled with Medicare (CMS data updated 2026-10-02).
- 670 Ponahawai St, Suite 208Hilo, HI 96720 (808) 935‑2112
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Hilo
Clinicians with the same Medicare primary specialty in Hilo, HI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427254192 |
| 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