Quick answers
- Does Maria Matsumoto accept Medicare assignment?
- Yes. Medicare's clinician data says Maria Matsumoto 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 Maria Matsumoto see?
- In 2024, CMS data shows 4,078 Original Medicare patients and 6,776 services for Maria Matsumoto. This counts Original Medicare only and measures volume, not quality.
- What is Maria Matsumoto's NPI number?
- 1609812916. 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 Maria Matsumoto, 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 | 4,078 |
|---|---|
| Services billed to Medicare | 6,776 |
| Different services or procedures | 96 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- X-ray of chest, 2 views (71046)820 services
- Complete ultrasound scan of abdomen (76700)521 services
- X-ray of knee, 4 or more views (73564)466 services
- Complete ultrasound scan behind abdominal cavity (76770)329 services
- X-ray of shoulder, minimum of 2 views (73030)230 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%
- Arthritis48%
- Diabetes39%
- Osteoporosis26%
- Ischemic heart disease25%
Practice locations
Addresses where Maria Matsumoto is enrolled with Medicare (CMS data updated October 2, 2026).
- 125 Ciro AveSan Jose, CA 95128 (408) 297‑4591
- 2581 Samaritan DrSan Jose, CA 95124
- 340 Dardanelli Ln, Suite 11aLos Gatos, CA 95032 (408) 866‑7131
- 696 W El Camino RealSunnyvale, CA 94087 (650) 967‑1331
Group practices
Medicare enrollment lists Maria Matsumoto as a member of this group (CMS data updated October 2, 2026).
- Valley Radiology Medical Associates Inc28 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in San Jose
Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.
Other clinicians in Valley Radiology Medical Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Geisel School Of Medicine At Dartmouth |
| Graduation year | 1986 (40 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609812916 |
| 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