Quick answers
- Does Matthew R. Garvoille accept Medicare assignment?
- Medicare's clinician data says Matthew R. Garvoille may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Matthew R. Garvoille's NPI number?
- 1922401918. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Matthew R. Garvoille is enrolled with Medicare (CMS data updated October 2, 2026).
- 17 S River St, Suite 254Janesville, WI 53548
Group practices
Medicare enrollment lists Matthew R. Garvoille as a member of this group (CMS data updated October 2, 2026).
- Trivium LLC12 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Janesville
Clinicians with the same Medicare primary specialty in Janesville, WI — not a recommendation.
Other clinicians in Trivium LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CSW |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1922401918 |
| 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
- 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