Quick answers
- Does Craig H. Nakatsuka accept Medicare assignment?
- Yes. Medicare's clinician data says Craig H. Nakatsuka 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 Craig H. Nakatsuka see?
- In 2024, CMS data shows 353 Original Medicare patients and 2,106 services for Craig H. Nakatsuka. This counts Original Medicare only and measures volume, not quality.
- What is Craig H. Nakatsuka's NPI number?
- 1154422251. 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 Craig H. Nakatsuka, 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 | 353 |
|---|---|
| Services billed to Medicare | 2,106 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 80 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)1,038 services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)343 services
- Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)188 services
- Advance care planning, first 30 minutes (99497)103 services
- Nursing facility discharge management, more than 30 minutes (99316)76 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%
- Chronic kidney disease52%
- Diabetes48%
- Arthritis48%
- Alzheimer's disease or dementia41%
Practice locations
Addresses where Craig H. Nakatsuka is enrolled with Medicare (CMS data updated October 2, 2026).
- 546 Kaaahi StHonolulu, HI 96817 (808) 447‑2863
Group practices
Medicare enrollment lists Craig H. Nakatsuka as a member of this group (CMS data updated October 2, 2026).
- IHS the Institute for Human Services Inc6 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Honolulu
Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.
Other clinicians in IHS the Institute for Human Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Hawaii John A. Burns School Of Medicine |
| Graduation year | 1979 (47 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154422251 |
| 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