Quick answers
- Which hospitals does Steven J. Ayres work at?
- Medicare's official clinician data lists Steven J. Ayres at 3 hospitals: Benefis Hospitals Inc, Great Falls Clinic Hospital and Northern Montana Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Steven J. Ayres see patients?
- Medicare's clinician data lists 2 practice locations, including Great Falls, MT. Call before your visit to confirm the address.
- What is Steven J. Ayres's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Steven J. Ayres accept Medicare assignment?
- Yes. Medicare's clinician data says Steven J. Ayres 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 Steven J. Ayres?
- (406) 455-5000, as listed in official Medicare / NPI Registry data.
- What is Steven J. Ayres's NPI number?
- 1265488464. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Steven J. Ayres works
Medicare's Facility Affiliation Data lists Steven J. Ayres at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Benefis Hospitals IncGreat Falls, MT · Acute Care Hospital · CCN 270012
- Great Falls Clinic HospitalGreat Falls, MT · Acute Care Hospital · CCN 270086
- Northern Montana HospitalHavre, MT · Critical Access Hospital · CCN 271348
Practice locations
Addresses where Steven J. Ayres is enrolled with Medicare (CMS data updated 2026-10-02).
- 1101 26th St SGreat Falls, MT 59405 (406) 455‑5000
- PO Box, Suite 6010Great Falls, MT 59406
Group practices
Medicare enrollment lists Steven J. Ayres as a member of this group (CMS data updated 2026-10-02).
- Benefis Hospitals Inc384 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Great Falls
Clinicians with the same Medicare primary specialty in Great Falls, MT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265488464 |
| 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