Quick answers
- Which hospitals does Joanne Arnold work at?
- Medicare's official clinician data lists Joanne Arnold at 5 hospitals: Mayers Memorial Hospital, Mercy Medical Center of Mt Shasta, Mercy Medical Center Redding, St Elizabeth Community Hospital and Trinity Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Joanne Arnold see patients?
- Medicare's clinician data lists 4 practice locations, including Apple Valley, CA and Redding, CA. Call before your visit to confirm the address.
- What is Joanne Arnold's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Joanne Arnold accept Medicare assignment?
- Yes. Medicare's clinician data says Joanne Arnold 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 Joanne Arnold?
- (650) 485-9882, as listed in official Medicare / NPI Registry data.
- What is Joanne Arnold's NPI number?
- 1487957338. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Joanne Arnold works
Medicare's Facility Affiliation Data lists Joanne Arnold at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mayers Memorial HospitalFall River Mills, CA · Critical Access Hospital · CCN 051305
- Mercy Medical Center of Mt ShastaMount Shasta, CA · Critical Access Hospital · CCN 051319
- Mercy Medical Center ReddingRedding, CA · Acute Care Hospital · CCN 050280
- St Elizabeth Community HospitalRed Bluff, CA · Acute Care Hospital · CCN 050042
- Trinity HospitalWeaverville, CA · Critical Access Hospital · CCN 051315
Practice locations
Addresses where Joanne Arnold is enrolled with Medicare (CMS data updated 2026-10-02).
- 18092 Wika RdApple Valley, CA 92307 (650) 485‑9882
- 2175 Rosaline AveRedding, CA 96001 (530) 225‑7779
- 310 Hartnell Ave, Suite AandcRedding, CA 96002 (530) 245‑2900
- 963 Butte StRedding, CA 96001 (530) 245‑5900
Group practices
Medicare enrollment lists Joanne Arnold as a member of these groups (CMS data updated 2026-10-02).
- Dignity Health86 clinicians in the group
- Interventional Radiation Oncology of California Inc8 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Apple Valley
Clinicians with the same Medicare primary specialty in Apple Valley, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2010 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487957338 |
| 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