Wing Sze Esther Yung, M.D.
NPI 1619102845ActiveIndividual· Surgery· Loma Linda, CA
Surgery (M.D.) in Loma Linda, California, trained at Loma Linda University School of Medicine (class of 2009). 54 Medicare patients in 2024, $40,027 paid; nearly all of their 63 Part D prescriptions were generic (98%). Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2025, $872.77 in all, mostly food and beverage.
Overview
| NPI | 1619102845 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 18, 2009 |
| Last updated in NPPES | Dec 17, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | A115731 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 54 |
|---|---|
| Services billed | 152 across 40 procedure codes |
| Paid by Medicare | $40,027 |
Part D prescriptions in 2024
| Prescriptions (claims) | 63 · 68 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $890.97 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | General Surgery |
Medical groups
- Faculty Physicians and Surgeons of LlusmLoma Linda, CA · 1,315 clinicians
- Sac Health SystemSan Bernardino, CA · 227 clinicians
Hospital affiliation
- Loma Linda University Medical CenterLoma Linda, CA
Industry payments (Open Payments)
- 2025$872.77 · 11 payments from 2 companies
- 2024$1,999 · 8 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $737.85 | 6 |
| W. L. Gore & Associates, Inc. | $134.92 | 5 |
What the 2025 payments were for
- Food and Beverage$558.81 · 8 payments
- Travel and Lodging$313.96 · 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