Quick answers
- Which hospitals does Jack O. Clark work at?
- Medicare's official clinician data lists Jack O. Clark at 3 hospitals: Eastern Idaho Regional Medical Center, Madison Memorial Hospital and Mountain View Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jack O. Clark see patients?
- Medicare's clinician data lists 2 practice locations, including Rexburg, ID and Reburg, ID. Call before your visit to confirm the address.
- What is Jack O. Clark's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Jack O. Clark accept Medicare assignment?
- Yes. Medicare's clinician data says Jack O. Clark 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 Jack O. Clark?
- (208) 356-0234, as listed in official Medicare / NPI Registry data.
- What is Jack O. Clark's NPI number?
- 1902992837. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jack O. Clark works
Medicare's Facility Affiliation Data lists Jack O. Clark at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Eastern Idaho Regional Medical CenterIdaho Falls, ID · Acute Care Hospital · CCN 130018
- Madison Memorial HospitalRexburg, ID · Acute Care Hospital · CCN 130025
- Mountain View HospitalIdaho Falls, ID · Acute Care Hospital · CCN 130065
Practice locations
Addresses where Jack O. Clark is enrolled with Medicare (CMS data updated 2026-10-02).
- 37 S 2ndRexburg, ID 83440 (208) 356‑0234
- 450 E Main StReburg, ID 83440 (208) 359‑6516
Group practices
Medicare enrollment lists Jack O. Clark as a member of these groups (CMS data updated 2026-10-02).
- Madison Co Memorial Hospital34 clinicians in the group
- Madison Memorial Hospital22 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Idaho
Clinicians with the same Medicare primary specialty in Idaho — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Pennsylvania State University College Of Medicine |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902992837 |
| 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