Quick answers
- Which hospitals does Andrew K. Sullivan work at?
- Medicare's official clinician data lists Andrew K. Sullivan at 3 hospitals: Bozeman Health Deaconess Hospital, Madison Valley Medical Center and St James Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Andrew K. Sullivan see patients?
- Medicare's clinician data lists 1 practice location in Bozeman, MT. Call before your visit to confirm the address.
- What is Andrew K. Sullivan's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty, and also Internal Medicine.
- Does Andrew K. Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew K. Sullivan 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 Andrew K. Sullivan?
- (406) 414-4000, as listed in official Medicare / NPI Registry data.
- What is Andrew K. Sullivan's NPI number?
- 1154412799. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Andrew K. Sullivan works
Medicare's Facility Affiliation Data lists Andrew K. Sullivan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bozeman Health Deaconess HospitalBozeman, MT · Acute Care Hospital · CCN 270057
- Madison Valley Medical CenterEnnis, MT · Critical Access Hospital · CCN 271329
- St James HospitalButte, MT · Acute Care Hospital · CCN 270017
Practice locations
Addresses where Andrew K. Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 935 Highland Blvd, Suite 2210Bozeman, MT 59715 (406) 414‑4000
Group practices
Medicare enrollment lists Andrew K. Sullivan as a member of this group (CMS data updated 2026-10-02).
- Bozeman Health Deaconess Hospital320 clinicians in the group
Specialties
Find other Critical Care (Intensivists) doctors in Montana →
Other critical care doctors in Montana
Clinicians with the same Medicare primary specialty in Montana — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154412799 |
| 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