Dr. Michael C. Larson, M.D., PH.D
Radiology (Diagnostic Radiology Physician)
- Medicare participating
At a glance
- Medical school
- Medical College of Wisconsin (2015)
- Years since graduation
- 11
- In the NPI registry since
- 2015
- Medicare patients seen, 2024
- 1,614
Licensed in California since 2021, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is
Education and training
- 2015Medical school: Medical College of Wisconsin
- 2015Registered with an NPI (national billing number; not a license date)
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Diagnostic Radiology Physician primary
CA license C173330 (first issued 2021; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- University of California Davis Medical Center Sacramento, CA
- Adventist Health and Rideout Marysville, CA
Medical groups
- Regents of the Univ of Ca (1,584 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 1,614
- Services billed
- 2,172
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Ct scan of abdomen and pelvis with contrast | 382 | 366 |
| X-ray of abdomen, 1 view | 272 | 231 |
| X-ray of chest, 1 view | 152 | 128 |
| Ct scan of abdomen and pelvis without contrast | 92 | 91 |
| Complete ultrasound scan behind abdominal cavity | 82 | 82 |
| Mri scan of abdomen before and after contrast | 77 | 75 |
| Limited ultrasound scan of abdomen | 74 | 74 |
| Ct scan of lower spine without contrast | 64 | 64 |
| Mri scan of pelvis before and after contrast | 58 | 58 |
| Ultrasonic guidance for needle placement | 55 | 55 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 1 companies reported 1 payments worth $220 in total to this clinician.
| Fujifilm Healthcare Americas Corporation | $220 |
|---|
| Food and Beverage | $220 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.