Quick answers
- Does Toshimasa J. Clark accept Medicare assignment?
- Yes. Medicare's clinician data says Toshimasa J. Clark 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 Toshimasa J. Clark see?
- In 2024, CMS data shows 2,204 Original Medicare patients and 3,263 services for Toshimasa J. Clark. This counts Original Medicare only and measures volume, not quality.
- What is Toshimasa J. Clark's NPI number?
- 1427213271. 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 Toshimasa J. Clark, 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 | 2,204 |
|---|---|
| Services billed to Medicare | 3,263 |
| Different services or procedures | 74 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Ct scan of abdomen and pelvis with contrast (74177)684 services
- Ct scan of chest with contrast (71260)327 services
- X-ray of abdomen, 1 view (74018)296 services
- Mri scan of abdomen before and after contrast (74183)177 services
- Ultrasound study of one arm or leg veins with compression and maneuvers (93971)170 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 pressure73%
- High cholesterol67%
- Arthritis51%
- Chronic kidney disease37%
- Ischemic heart disease32%
- Diabetes31%
Hospitals where Toshimasa J. Clark works
Medicare's Facility Affiliation Data lists Toshimasa J. Clark 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.
- Uch-Memorial Health SystemColorado Springs, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060022
- UCHealth Broomfield HospitalBroomfield, CO · Acute Care Hospital · Emergency services: listed by Medicare · CCN 060129
- UCHealth Highlands Ranch HospitalHighlands Ranch, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060132
- University of Colorado Hospital AuthorityAurora, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060024
Practice locations
Addresses where Toshimasa J. Clark is enrolled with Medicare (CMS data updated October 2, 2026).
- 12605 E 16th Ave, Uchealth Anschutz Medical CampusAurora, CO 80045 (720) 848‑0000
- 1500 Park Central DrHighlands Ranch, CO 80129 (720) 516‑4085
Group practices
Medicare enrollment lists Toshimasa J. Clark as a member of these groups (CMS data updated October 2, 2026).
- University Physicians Incorporated3,215 clinicians in the group
- UCHealth Imaging Services LLC258 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Nuclear Medicinealso
Other radiologists in Aurora
Clinicians with the same Medicare primary specialty in Aurora, CO — not a recommendation.
Other clinicians in University Physicians Incorporated
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 | 2008 (18 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427213271 |
| 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