Quick answers
- Does Gary J. Gronstedt accept Medicare assignment?
- Yes. Medicare's clinician data says Gary J. Gronstedt 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.
- What is Gary J. Gronstedt's NPI number?
- 1780688531. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gary J. Gronstedt works
Medicare's Facility Affiliation Data lists Gary J. Gronstedt 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.
- Ridgeview Medical CenterWaconia, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240056
Practice locations
Addresses where Gary J. Gronstedt is enrolled with Medicare (CMS data updated October 2, 2026).
- 111 Hundertmark RdChaska, MN 55318
- 7907 Powers BlvdChanhassen, MN 55317 (952) 934‑0570
Group practices
Medicare enrollment lists Gary J. Gronstedt as a member of this group (CMS data updated October 2, 2026).
- Ridgeview Medical Center412 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Minnesota
Clinicians with the same Medicare primary specialty in Minnesota — not a recommendation.
Other clinicians in Ridgeview Medical Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Kansas City University Of Physicians And Surgeons |
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1780688531 |
| 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
- 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