Quick answers
- Which hospitals does Thomas N. Amosson work at?
- Medicare's official clinician data lists Thomas N. Amosson at 2 hospitals: Avera Marshall Regional Medical Center and Avera McKennan Hospital & University Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Thomas N. Amosson see patients?
- Medicare's clinician data lists 4 practice locations, including Sioux Falls, SD, Miller, SD and Milbank, SD. Call before your visit to confirm the address.
- What is Thomas N. Amosson's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Thomas N. Amosson accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas N. Amosson 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 N. Amosson?
- (605) 322-4878, as listed in official Medicare / NPI Registry data.
- What is Thomas N. Amosson's NPI number?
- 1942670179. 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 N. Amosson works
Medicare's Facility Affiliation Data lists Thomas N. Amosson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Avera Marshall Regional Medical CenterMarshall, MN · Critical Access Hospital · CCN 241359
- Avera McKennan Hospital & University Health CenterSioux Falls, SD · Acute Care Hospital · CCN 430016
Practice locations
Addresses where Thomas N. Amosson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1325 S Cliff AveSioux Falls, SD 57105
- 1325 S Cliff Ave, RadiologySioux Falls, SD 57105 (605) 322‑4878
- 300 W 5th StMiller, SD 57362 (605) 853‑0158
- 901 E Virgil AveMilbank, SD 57252
Group practices
Medicare enrollment lists Thomas N. Amosson as a member of this group (CMS data updated 2026-10-02).
- Avera McKennan959 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Sioux Falls
Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Creighton University School Of Medicine |
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942670179 |
| 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