Quick answers
- Which hospitals does Ryan E. McCallum work at?
- Medicare's official clinician data lists Ryan E. McCallum at 1 hospital: Whiteriver PHS Indian Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan E. McCallum see patients?
- Medicare's clinician data lists 2 practice locations, including Whiteriver, AZ. Call before your visit to confirm the address.
- What is Ryan E. McCallum's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Ryan E. McCallum accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan E. McCallum 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 Ryan E. McCallum's NPI number?
- 1538331137. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ryan E. McCallum works
Medicare's Facility Affiliation Data lists Ryan E. McCallum at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Whiteriver PHS Indian HospitalWhiteriver, AZ · Acute Care Hospital · CCN 030113
Practice locations
Addresses where Ryan E. McCallum is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 W Hospital DrWhiteriver, AZ 85941
- PO Box, Suite 860Whiteriver, AZ 85941
Group practices
Medicare enrollment lists Ryan E. McCallum as a member of this group (CMS data updated 2026-10-02).
- DHHS IHS Phoenix Area71 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Whiteriver
Clinicians with the same Medicare primary specialty in Whiteriver, AZ — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538331137 |
| 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