Quick answers
- Does Karen C. Yamaguchi accept Medicare assignment?
- Yes. Medicare's clinician data says Karen C. Yamaguchi 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 Karen C. Yamaguchi see?
- In 2024, CMS data shows 616 Original Medicare patients and 2,255 services for Karen C. Yamaguchi. This counts Original Medicare only and measures volume, not quality.
- What is Karen C. Yamaguchi's NPI number?
- 1215973029. 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 Karen C. Yamaguchi, 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 | 616 |
|---|---|
| Services billed to Medicare | 2,255 |
| Different services or procedures | 46 |
| Participating Medicare provider | Yes |
| Average age of these patients | 81 |
Most frequent services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)904 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)886 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)103 services
- X-ray of foot, minimum of 3 views (73630)77 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)51 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 disease42%
- Arthritis39%
- Diabetes37%
- Osteoporosis34%
Practice locations
Addresses where Karen C. Yamaguchi is enrolled with Medicare (CMS data updated October 2, 2026).
- 615 Piikoi St, Suite 1401Honolulu, HI 96814 (808) 591‑0020
Group practices
Medicare enrollment lists Karen C. Yamaguchi as a member of this group (CMS data updated October 2, 2026).
- Karen C Yamaguchi DPM LLC2 clinicians in the group
Specialties
- Podiatryprimary
Other podiatrists in Honolulu
Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.
Other clinicians in Karen C Yamaguchi DPM LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DPM |
|---|---|
| Podiatric medical school | California School Of Podiatric Medicine |
| Graduation year | 1990 (36 years since podiatric medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215973029 |
| 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