Quick answers
- Which hospitals does Catherine M. Challender work at?
- Medicare's official clinician data lists Catherine M. Challender at 1 hospital: Scripps Memorial Hospital La Jolla. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Catherine M. Challender see patients?
- Medicare's clinician data lists 1 practice location in La Jolla, CA. Call before your visit to confirm the address.
- What is Catherine M. Challender's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does Catherine M. Challender accept Medicare assignment?
- Yes. Medicare's clinician data says Catherine M. Challender 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 Catherine M. Challender?
- (858) 457-4123, as listed in official Medicare / NPI Registry data.
- What is Catherine M. Challender's NPI number?
- 1336567866. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Catherine M. Challender works
Medicare's Facility Affiliation Data lists Catherine M. Challender at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Scripps Memorial Hospital La JollaLa Jolla, CA · Acute Care Hospital · CCN 050324
Practice locations
Addresses where Catherine M. Challender is enrolled with Medicare (CMS data updated 2026-10-02).
- 9888 Genesee AveLa Jolla, CA 92037 (858) 457‑4123
Group practices
Medicare enrollment lists Catherine M. Challender as a member of this group (CMS data updated 2026-10-02).
- Ximed Hospitalists, Inc.35 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in La Jolla
Clinicians with the same Medicare primary specialty in La Jolla, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Chicago College Of Medicine And Surgery |
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336567866 |
| 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