Quick answers
- Which hospitals does Harry Matossian work at?
- Medicare's official clinician data lists Harry Matossian at 2 hospitals: Adventist Health Sonora and St Luke's Wood River Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Harry Matossian see patients?
- Medicare's clinician data lists 3 practice locations, including Ketchum, ID. Call before your visit to confirm the address.
- What is Harry Matossian's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Harry Matossian accept Medicare assignment?
- Yes. Medicare's clinician data says Harry Matossian 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 Harry Matossian?
- (208) 622-8811, as listed in official Medicare / NPI Registry data.
- What is Harry Matossian's NPI number?
- 1316945702. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Harry Matossian works
Medicare's Facility Affiliation Data lists Harry Matossian at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health SonoraSonora, CA · Acute Care Hospital · CCN 050335
- St Luke's Wood River Medical CenterKetchum, ID · Critical Access Hospital · CCN 131323
Practice locations
Addresses where Harry Matossian is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Hospital DrKetchum, ID 83340
- 100 Hospital Dr, Suite 109Ketchum, ID 83340 (208) 622‑8811
- 191 5th St WKetchum, ID 83340 (208) 725‑2171
Group practices
Medicare enrollment lists Harry Matossian as a member of this group (CMS data updated 2026-10-02).
- St Lukes Clinic - Wood River LLC66 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Idaho
Clinicians with the same Medicare primary specialty in Idaho — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316945702 |
| 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