Quick answers
- Which hospitals does Timothy D. Olthoff work at?
- Medicare's official clinician data lists Timothy D. Olthoff at 5 hospitals: Banner Thunderbird Medical Center, City of Hope Cancer Center Phoenix, Exceptional Community Hospital Prescott, St Josephs Hospital and Medical Center and Yavapai Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Timothy D. Olthoff see patients?
- Medicare's clinician data lists 2 practice locations, including Prescott, AZ. Call before your visit to confirm the address.
- What is Timothy D. Olthoff's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Timothy D. Olthoff accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy D. Olthoff 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 Timothy D. Olthoff?
- (928) 634-0665, as listed in official Medicare / NPI Registry data.
- What is Timothy D. Olthoff's NPI number?
- 1225019425. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Timothy D. Olthoff works
Medicare's Facility Affiliation Data lists Timothy D. Olthoff at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Banner Thunderbird Medical CenterGlendale, AZ · Acute Care Hospital · CCN 030089
- City of Hope Cancer Center PhoenixGoodyear, AZ · Acute Care Hospital · CCN 030138
- Exceptional Community Hospital PrescottPrescott, AZ · Acute Care Hospital · CCN 030196
- St Josephs Hospital and Medical CenterPhoenix, AZ · Acute Care Hospital · CCN 030024
- Yavapai Regional Medical CenterPrescott, AZ · Acute Care Hospital · CCN 030012
Practice locations
Addresses where Timothy D. Olthoff is enrolled with Medicare (CMS data updated 2026-10-02).
- 1003 Willow Creek RdPrescott, AZ 86301 (928) 634‑0665
- 810 Whipple StPrescott, AZ 86301 (928) 634‑0665
Group practices
Medicare enrollment lists Timothy D. Olthoff as a member of these groups (CMS data updated 2026-10-02).
- Yavapai Community Hospital Association21 clinicians in the group
- Prescott Radiologists LLP13 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Prescott
Clinicians with the same Medicare primary specialty in Prescott, AZ — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Midwestern University, Chicago College Of Osteopathic Med |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225019425 |
| 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