Quick answers
- Which hospitals does Thomas J. Viren work at?
- Medicare's official clinician data lists Thomas J. Viren at 3 hospitals: Bigfork Valley Hospital, Grand Itasca Clinic and Hospital and North Memorial Health Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Thomas J. Viren see patients?
- Medicare's clinician data lists 2 practice locations, including Grand Rapids, MN. Call before your visit to confirm the address.
- What is Thomas J. Viren's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Thomas J. Viren accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas J. Viren accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Thomas J. Viren?
- (218) 326-3401, as listed in official Medicare / NPI Registry data.
- What is Thomas J. Viren's NPI number?
- 1699745331. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Thomas J. Viren works
Medicare's Facility Affiliation Data lists Thomas J. Viren at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bigfork Valley HospitalBigfork, MN · Critical Access Hospital · CCN 241316
- Grand Itasca Clinic and HospitalGrand Rapids, MN · Acute Care Hospital · CCN 240064
- North Memorial Health HospitalRobbinsdale, MN · Acute Care Hospital · CCN 240001
Practice locations
Addresses where Thomas J. Viren is enrolled with Medicare (CMS data updated 2026-10-02).
- 111 SE 3rd StGrand Rapids, MN 55744 (218) 326‑3401
- 1601 Golf Course RdGrand Rapids, MN 55744 (218) 326‑3401
Group practices
Medicare enrollment lists Thomas J. Viren as a member of this group (CMS data updated 2026-10-02).
- Grand Itasca Clinic and Hospital323 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Grand Rapids
Clinicians with the same Medicare primary specialty in Grand Rapids, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699745331 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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