Mary Hoon Oh, MD
NPI 1124683297ActiveIndividual· Surgery· Loma Linda, CA
Surgery (MD) in Loma Linda, California, trained at Saint Louis University School of Medicine (class of 2019). Part D covered 20 prescriptions written in 2024, 100% of them generic. Medtronic, Inc. was the largest of 3 companies reporting payments in 2025, $20,115 in all, mostly grants.
Overview
| NPI | 1124683297 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 4, 2019 |
| Last updated in NPPES | Aug 6, 2025 |
| Certified by provider | Aug 6, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | A201891 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 20 · 20 30-day fills |
|---|---|
| Patients | 11 |
| Total drug cost | $42.57 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | General Surgery |
Medical group
- Faculty Physicians and Surgeons of LlusmLoma Linda, CA · 1,315 clinicians
Hospital affiliation
- Loma Linda University Medical CenterLoma Linda, CA
Industry payments (Open Payments)
- 2025$20,115 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $20,000 | 1 |
| W. L. Gore & Associates, Inc. | $71.62 | 2 |
| Acera Surgical, Inc. | $43.87 | 1 |
What the 2025 payments were for
- Grant$20,000 · 1 payment
- Food and Beverage$115.49 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 54 general surgeons in Loma Linda · All general surgeons in California