Quick answers
- Which hospitals does Sean E. McMillan work at?
- Medicare's official clinician data lists Sean E. McMillan at 5 hospitals: St Luke's Jerome, St Luke's Regional Medical Center, St Luke's Wood River Medical Center, St Lukes Magic Valley Medical Center and University of Utah Hospital and Clinics. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sean E. McMillan see patients?
- Medicare's clinician data lists 2 practice locations, including Twin Falls, ID. Call before your visit to confirm the address.
- What is Sean E. McMillan's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does Sean E. McMillan accept Medicare assignment?
- Yes. Medicare's clinician data says Sean E. McMillan 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 Sean E. McMillan's NPI number?
- 1558353821. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sean E. McMillan works
Medicare's Facility Affiliation Data lists Sean E. McMillan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Luke's JeromeJerome, ID · Critical Access Hospital · CCN 131310
- St Luke's Regional Medical CenterBoise, ID · Acute Care Hospital · CCN 130006
- St Luke's Wood River Medical CenterKetchum, ID · Critical Access Hospital · CCN 131323
- St Lukes Magic Valley Medical CenterTwin Falls, ID · Acute Care Hospital · CCN 130002
- University of Utah Hospital and ClinicsSalt Lake City, UT · Acute Care Hospital · CCN 460009
Practice locations
Addresses where Sean E. McMillan is enrolled with Medicare (CMS data updated 2026-10-02).
- 746 N College RdTwin Falls, ID 83301
- 801 Pole Line Rd WTwin Falls, ID 83301
Group practices
Medicare enrollment lists Sean E. McMillan as a member of this group (CMS data updated 2026-10-02).
- St Lukes Clinic LLC316 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Idaho
Clinicians with the same Medicare primary specialty in Idaho — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Florida College Of Medicine |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558353821 |
| 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