Quick answers
- Does Mio P. Osaki accept Medicare assignment?
- Yes. Medicare's clinician data says Mio P. Osaki accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Mio P. Osaki see?
- In 2024, CMS data shows 146 Original Medicare patients and 328 services for Mio P. Osaki. This counts Original Medicare only and measures volume, not quality.
- What is Mio P. Osaki's NPI number?
- 1558565747. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Mio P. Osaki, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 146 |
|---|---|
| Services billed to Medicare | 328 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 82 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)126 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)88 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)48 services
- Telephone medical discussion with physician, 5-10 minutes (99441)17 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)15 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Heart failure75%
- Ischemic heart disease61%
- Chronic kidney disease55%
- Atrial fibrillation43%
Hospitals where Mio P. Osaki works
Medicare's Facility Affiliation Data lists Mio P. Osaki at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Straub Clinic and HospitalHonolulu, HI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 120022
- The Queens Medical CenterHonolulu, HI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 120001
Practice locations
Addresses where Mio P. Osaki is enrolled with Medicare (CMS data updated October 2, 2026).
- 888 S King StHonolulu, HI 96813 (808) 522‑4000
- 888 S King St, Suite 700Honolulu, HI 96813 (808) 522‑4000
Group practices
Medicare enrollment lists Mio P. Osaki as a member of this group (CMS data updated October 2, 2026).
- Straub Clinic and Hospital419 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Honolulu
Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.
Other clinicians in Straub Clinic and Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558565747 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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