Quick answers
- Which hospitals does Ronald D. Gim work at?
- Medicare's official clinician data lists Ronald D. Gim at 2 hospitals: Memorialcare Saddleback Medical Center and Providence Mission Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ronald D. Gim see patients?
- Medicare's clinician data lists 2 practice locations, including Laguna Hills, CA. Call before your visit to confirm the address.
- What is Ronald D. Gim's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Ronald D. Gim accept Medicare assignment?
- Yes. Medicare's clinician data says Ronald D. Gim 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 Ronald D. Gim?
- (949) 770-6252, as listed in official Medicare / NPI Registry data.
- What is Ronald D. Gim's NPI number?
- 1316039753. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ronald D. Gim works
Medicare's Facility Affiliation Data lists Ronald D. Gim at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Memorialcare Saddleback Medical CenterLaguna Hills, CA · Acute Care Hospital · CCN 050603
- Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · CCN 050567
Practice locations
Addresses where Ronald D. Gim is enrolled with Medicare (CMS data updated 2026-10-02).
- 24012 Calle De La Plata, Suite 450Laguna Hills, CA 92653 (949) 770‑6252
- 24422 Avenida De La Carlota, Suite 165Laguna Hills, CA 92653 (949) 770‑6252
Group practices
Medicare enrollment lists Ronald D. Gim as a member of this group (CMS data updated 2026-10-02).
- South Orange County Cardiology GRP10 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in Laguna Hills
Clinicians with the same Medicare primary specialty in Laguna Hills, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Diego School Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316039753 |
| 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