Quick answers
- Which hospitals does Aaron J. Derry work at?
- Medicare's official clinician data lists Aaron J. Derry at 3 hospitals: Bitterroot Health - Daly Hospital, St James Hospital and St. Patrick Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Aaron J. Derry see patients?
- Medicare's clinician data lists 2 practice locations, including Missoula, MT. Call before your visit to confirm the address.
- What is Aaron J. Derry's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Aaron J. Derry accept Medicare assignment?
- Yes. Medicare's clinician data says Aaron J. Derry 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 Aaron J. Derry's NPI number?
- 1093755886. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Aaron J. Derry works
Medicare's Facility Affiliation Data lists Aaron J. Derry at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bitterroot Health - Daly HospitalHamilton, MT · Critical Access Hospital · CCN 271340
- St James HospitalButte, MT · Acute Care Hospital · CCN 270017
- St. Patrick HospitalMissoula, MT · Acute Care Hospital · CCN 270014
Practice locations
Addresses where Aaron J. Derry is enrolled with Medicare (CMS data updated 2026-10-02).
Group practices
Medicare enrollment lists Aaron J. Derry as a member of this group (CMS data updated 2026-10-02).
- Providence Health and Services Mt362 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Missoula
Clinicians with the same Medicare primary specialty in Missoula, MT — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093755886 |
| 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