Quick answers
- Which hospitals does Warren S. Spencer work at?
- Medicare's official clinician data lists Warren S. Spencer at 3 hospitals: City of Hope Cancer Center Phoenix, 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 Warren S. Spencer see patients?
- Medicare's clinician data lists 3 practice locations, including Prescott, AZ and Prescott Valley, AZ. Call before your visit to confirm the address.
- What is Warren S. Spencer's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Warren S. Spencer accept Medicare assignment?
- Yes. Medicare's clinician data says Warren S. Spencer 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 Warren S. Spencer?
- (928) 634-0665, as listed in official Medicare / NPI Registry data.
- What is Warren S. Spencer's NPI number?
- 1043475247. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Warren S. Spencer works
Medicare's Facility Affiliation Data lists Warren S. Spencer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- City of Hope Cancer Center PhoenixGoodyear, AZ · Acute Care Hospital · CCN 030138
- 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 Warren S. Spencer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1003 Willow Creek RdPrescott, AZ 86301 (928) 634‑0665
- 7700 E Florentine RdPrescott Valley, AZ 86314 (928) 634‑0665
- 810 Whipple StPrescott, AZ 86301 (928) 771‑7577
Group practices
Medicare enrollment lists Warren S. Spencer 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 | MD |
|---|---|
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043475247 |
| 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