Quick answers
- Where does Kathy K. Joo see patients?
- Medicare's clinician data lists 1 practice location in Temecula, CA. Call before your visit to confirm the address.
- What is Kathy K. Joo's specialty?
- Medicare lists Endocrinology as the primary specialty, and also Internal Medicine.
- Does Kathy K. Joo accept Medicare assignment?
- Yes. Medicare's clinician data says Kathy K. Joo 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 Kathy K. Joo?
- (951) 308-1325, as listed in official Medicare / NPI Registry data.
- What is Kathy K. Joo's NPI number?
- 1457318347. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Kathy K. Joo is enrolled with Medicare (CMS data updated 2026-10-02).
- 29645 Rancho California Rd, Suite 134Temecula, CA 92591 (951) 308‑1325
Specialties
- Endocrinologyprimary
- Internal Medicinealso
Other endocrinologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457318347 |
| 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
- 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