Quick answers
- Which hospitals does John C. Sillery work at?
- Medicare's official clinician data lists John C. Sillery at 5 hospitals: Billings Clinic Hospital, Daniels Memorial Hospital, Glendive Medical Center, Livingston Healthcare and Sheridan Memorial Hosptial. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John C. Sillery see patients?
- Medicare's clinician data lists 11 practice locations, including Livingston, MT, Scobey, MT and Lovell, WY. Call before your visit to confirm the address.
- What is John C. Sillery's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does John C. Sillery accept Medicare assignment?
- Yes. Medicare's clinician data says John C. Sillery 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 John C. Sillery?
- (406) 222-0030, as listed in official Medicare / NPI Registry data.
- What is John C. Sillery's NPI number?
- 1699752709. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John C. Sillery works
Medicare's Facility Affiliation Data lists John C. Sillery at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Billings Clinic HospitalBillings, MT · Acute Care Hospital · CCN 270004
- Daniels Memorial HospitalScobey, MT · Critical Access Hospital · CCN 271342
- Glendive Medical CenterGlendive, MT · Critical Access Hospital · CCN 271332
- Livingston HealthcareLivingston, MT · Critical Access Hospital · CCN 271317
- Sheridan Memorial HosptialPlentywood, MT · Critical Access Hospital · CCN 271322
Practice locations
Addresses where John C. Sillery is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 11; the Medicare profile lists all.
- 104 Centennial Dr, Suite 103Livingston, MT 59047 (406) 222‑0030
- 105 5th Ave EScobey, MT 59263 (406) 487‑2296
- 1115 Lane, Suite 12Lovell, WY 82431 (307) 548‑5200
- 201 Yellowstone AveCody, WY 82414 (307) 527‑7561
- 202 Prospect DrGlendive, MT 59330 · Glendive Medical Center Inc (406) 345‑3306
Group practices
Medicare enrollment lists John C. Sillery as a member of these groups (CMS data updated 2026-10-02).
- Billings Clinic Specialty Supplies and Services, LLC824 clinicians in the group
- Livingston Healthcare67 clinicians in the group
- Sheridan Memorial Hospital Association31 clinicians in the group
- Powell Valley Healthcare Inc29 clinicians in the group
- North Big Horn Hospital District22 clinicians in the group
- Daniels Memorial Hospital21 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Livingston
Clinicians with the same Medicare primary specialty in Livingston, MT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699752709 |
| 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