Quick answers
- Which hospitals does Jonathan E. Calder work at?
- Medicare's official clinician data lists Jonathan E. Calder at 3 hospitals: Saint Alphonsus Medical Center - Nampa, Saint Alphonsus Medical Center Ontario and Saint Alphonsus Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan E. Calder see patients?
- Medicare's clinician data lists 1 practice location in Boise, ID. Call before your visit to confirm the address.
- What is Jonathan E. Calder's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Jonathan E. Calder accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan E. Calder 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 Jonathan E. Calder?
- (208) 367-2121, as listed in official Medicare / NPI Registry data.
- What is Jonathan E. Calder's NPI number?
- 1104856640. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan E. Calder works
Medicare's Facility Affiliation Data lists Jonathan E. Calder at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Saint Alphonsus Medical Center - NampaNampa, ID · Acute Care Hospital · CCN 130013
- Saint Alphonsus Medical Center OntarioOntario, OR · Acute Care Hospital · CCN 380052
- Saint Alphonsus Regional Medical CenterBoise, ID · Acute Care Hospital · CCN 130007
Practice locations
Addresses where Jonathan E. Calder is enrolled with Medicare (CMS data updated 2026-10-02).
- 1055 N Curtis RdBoise, ID 83706 (208) 367‑2121
Group practices
Medicare enrollment lists Jonathan E. Calder as a member of this group (CMS data updated 2026-10-02).
- Cep America LLC1,023 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Boise
Clinicians with the same Medicare primary specialty in Boise, ID — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104856640 |
| 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