Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Maria Aya Matsumoto, MD

Individual provider Specialist · NPI 1609812916

Dr. Maria Aya Matsumoto, MD practises Diagnostic Radiology in San Jose, California. Graduated from Geisel School of Medicine at Dartmouth in 1986, 40 years ago. Practices with Valley Radiology Medical Associates Inc, a 27-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
40
Trained at
Geisel School of Medicine at Dartmouth
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2281 Paragon Dr
San Jose, CA 95131-1307 Not confirmed with CMS for 11 years — call before visiting
Phone: (408) 961-2649
Fax: (408) 244-6596
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence G61382 (CA)
Specialist Taxonomy 174400000X · Licence G61382 (CA)

Record details

NPI number1609812916
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 22, 2006
Last updated in NPPESFebruary 11, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolGEISEL SCHOOL OF MEDICINE AT DARTMOUTH
Graduated 1986 (40 years in practice)
Group practice Valley Radiology Medical Associates Inc — 27 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients4,078
Services billed 6,776 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Valley Radiology Medical Associates Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 27 clinicians in the practice; 8 are shown here.

Other providers in San Jose