Quick answers
- Does Chris M. Tsuneishi accept Medicare assignment?
- Yes. Medicare's clinician data says Chris M. Tsuneishi 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 Chris M. Tsuneishi see?
- In 2024, CMS data shows 194 Original Medicare patients and 1,257 services for Chris M. Tsuneishi. This counts Original Medicare only and measures volume, not quality.
- What is Chris M. Tsuneishi's NPI number?
- 1669425575. 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 Chris M. Tsuneishi, 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 | 194 |
|---|---|
| Services billed to Medicare | 1,257 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)444 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)199 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)188 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)135 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)113 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%
- Diabetes32%
- Arthritis29%
- Osteoporosis16%
- Chronic kidney disease15%
Hospitals where Chris M. Tsuneishi works
Medicare's Facility Affiliation Data lists Chris M. Tsuneishi 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.
- Providence Little Company of Mary Medical Center TorranceTorrance, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050353
- Torrance Memorial Medical CenterTorrance, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050351
Practice locations
Addresses where Chris M. Tsuneishi is enrolled with Medicare (CMS data updated October 2, 2026).
- 4201 Torrance Blvd, Suite 360Torrance, CA 90503 (310) 543‑1050
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Torrance
Clinicians with the same Medicare primary specialty in Torrance, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | R Franklin University Of Med & Sci/chicago Medical School |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669425575 |
| 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