Ronald D. Gim, M.D.
NPI 1316039753ActiveIndividual· Internal Medicine, Cardiovascular Disease· Laguna Hills, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Laguna Hills, California, trained at University of California, San Diego School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $892,811 for 4,284 claims, against $405,670 paid for services in 2024. Aop Health US, LLC was the largest of 28 companies reporting payments in 2025, $2,692 in all, mostly food and beverage.
Overview
| NPI | 1316039753 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 29, 2006 |
| Last updated in NPPES | Sep 29, 2026 |
| Certified by provider | Sep 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A67690 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 865 |
|---|---|
| Services billed | 4,762 across 70 procedure codes |
| Paid by Medicare | $405,670 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,284 · 10,019 30-day fills |
|---|---|
| Patients | 525 |
| Total drug cost | $892,811 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- South Orange County Cardiology GrpLaguna Hills, CA · 10 clinicians
Hospital affiliations
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
- Providence Mission HospitalMission Viejo, CA
Industry payments (Open Payments)
- 2025$2,692 · 88 payments from 28 companies
- 2024$2,188 · 94 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aop Health US, LLC | $525.00 | 1 |
| Stryker Corporation | $372.71 | 9 |
| Scpharmaceuticals Inc. | $174.85 | 8 |
| Boston Scientific Corporation | $162.44 | 5 |
| Novartis Pharmaceuticals Corporation | $155.48 | 10 |
What the 2025 payments were for
- Food and Beverage$2,692 · 88 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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