Wayne Chih Wing Leong, M.D.
NPI 1023196102ActiveIndividual· Hospitalist· Oakland, CA
Hospitalist (M.D.) in Oakland, California, trained at University of California, San Diego School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $14,099 for 129 claims, against $6,757 paid for services in 2024. Radius Health, Inc. was the largest of 2 companies reporting payments in 2025, $158.70 in all, mostly food and beverage.
Overview
| NPI | 1023196102 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 2, 2006 |
| Last updated in NPPES | Dec 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | G78793 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 37 |
|---|---|
| Services billed | 95 across 7 procedure codes |
| Paid by Medicare | $6,757 |
Part D prescriptions in 2024
| Prescriptions (claims) | 129 · 223 30-day fills |
|---|---|
| Patients | 52 |
| Total drug cost | $14,099 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Internal Medicine |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$158.70 · 2 payments from 2 companies
- 2024$108.11 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Radius Health, Inc. | $92.86 | 1 |
| Amgen Inc. | $65.84 | 1 |
What the 2025 payments were for
- Food and Beverage$158.70 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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