Quick answers
- Does Nelson K. Kaneishi accept Medicare assignment?
- Yes. Medicare's clinician data says Nelson K. Kaneishi 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 Nelson K. Kaneishi see?
- In 2024, CMS data shows 1,581 Original Medicare patients and 2,977 services for Nelson K. Kaneishi. This counts Original Medicare only and measures volume, not quality.
- What is Nelson K. Kaneishi's NPI number?
- 1669422929. 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 Nelson K. Kaneishi, 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 | 1,581 |
|---|---|
| Services billed to Medicare | 2,977 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)2,152 services
- Special stained specimen slides to examine tissue, initial procedure (88342)363 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)157 services
- Special stained specimen slides to identify organisms including interpretation and report (88312)127 services
- Pathology examination of tissue using a microscope, moderately low complexity (88304)83 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 cholesterol75%
- High blood pressure72%
- Arthritis38%
- Ischemic heart disease24%
- Diabetes23%
- Chronic kidney disease22%
Practice locations
Addresses where Nelson K. Kaneishi is enrolled with Medicare (CMS data updated October 2, 2026).
- 183 E 8th AveChico, CA 95926 (530) 891‑6244
Group practices
Medicare enrollment lists Nelson K. Kaneishi as a member of this group (CMS data updated October 2, 2026).
- Pathology Sciences Medical Group11 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Chico
Clinicians with the same Medicare primary specialty in Chico, CA — not a recommendation.
Other clinicians in Pathology Sciences Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669422929 |
| 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