Quick answers
- Does Toshinobu Kazui accept Medicare assignment?
- Yes. Medicare's clinician data says Toshinobu Kazui 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 Toshinobu Kazui see?
- In 2024, CMS data shows 165 Original Medicare patients and 505 services for Toshinobu Kazui. This counts Original Medicare only and measures volume, not quality.
- What is Toshinobu Kazui's NPI number?
- 1205174794. 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 Toshinobu Kazui, 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 | 165 |
|---|---|
| Services billed to Medicare | 505 |
| Different services or procedures | 71 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)52 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)45 services
- Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)37 services
- Harvest of vein using an endoscope (33508)29 services
- Replacement of aortic valve through the skin and femoral artery (33361)28 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%
- Ischemic heart disease75%
- Heart failure69%
- Atrial fibrillation55%
- Chronic kidney disease43%
Hospitals where Toshinobu Kazui works
Medicare's Facility Affiliation Data lists Toshinobu Kazui 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.
- Banner - University Medical Center Tucson CampusTucson, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030064
- Banner-University Medical Center South CampusTucson, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 030111
- Canyon Vista Medical CenterSierra Vista, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030043
- Northwest Medical CenterTucson, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030085
Practice locations
Addresses where Toshinobu Kazui is enrolled with Medicare (CMS data updated October 2, 2026).
- 1625 N Campbell AveTucson, AZ 85719 (520) 694‑0111
- 2800 E Ajo WayTucson, AZ 85713
- 3533 Canyon De Flores, Suite CSierra Vista, AZ 85650 (520) 458‑2000
- 3838 N Campbell AveTucson, AZ 85719
- 535 N Wilmot Rd, Suite 101Tucson, AZ 85711 (520) 694‑5437
Group practices
Medicare enrollment lists Toshinobu Kazui as a member of this group (CMS data updated October 2, 2026).
- Banner-University Medical Group1,072 clinicians in the group
Specialties
- Cardiac Surgeryprimary
Other cardiac surgeons in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Other clinicians in Banner-University Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1205174794 |
| 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