Quick answers
- Does Neil Oishi accept Medicare assignment?
- Yes. Medicare's clinician data says Neil Oishi 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 Neil Oishi see?
- In 2024, CMS data shows 26 Original Medicare patients and 55 services for Neil Oishi. This counts Original Medicare only and measures volume, not quality.
- What is Neil Oishi's NPI number?
- 1447547633. 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 Neil Oishi, 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 | 26 |
|---|---|
| Services billed to Medicare | 55 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)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%
Practice locations
Addresses where Neil Oishi is enrolled with Medicare (CMS data updated October 2, 2026).
- 1060 Young St, Suite 312Honolulu, HI 96814 (808) 585‑8455
- 94 -1221 Ka Uka Blvd, Suite B204Waipahu, HI 96797 (808) 676‑9560
Group practices
Medicare enrollment lists Neil Oishi as a member of this group (CMS data updated October 2, 2026).
- Pacific Maxillofacial Center, Inc.2 clinicians in the group
Specialties
- Maxillofacial Surgeryprimary
- Oral Surgeryalso
Other maxillofacial surgeons in Honolulu
Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.
Other clinicians in Pacific Maxillofacial Center, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| School | University Of Florida College Of Medicine |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447547633 |
| 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
- 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