Richard Sung Ahn, M.D.
NPI 1568809226ActiveIndividual· Orthopaedic Surgery, Hand Surgery· Lakewood, CA
Orthopaedic Surgery, Hand Surgery (M.D.) in Lakewood, California, trained at State University of New York at Buffalo School of Medicine (class of 2013). 357 Medicare patients in 2024, $143,509 paid; nearly all of their 365 Part D prescriptions were generic (99%). Endo USA, Inc. reported $29.23 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1568809226 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 3, 2013 |
| Last updated in NPPES | Mar 17, 2021 |
| Certified by provider | Mar 17, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Hand Surgery Primary | 207XS0106X | A162729 | CA |
| Orthopaedic Surgery | 207X00000X | A162729 | 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 - Hand Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 357 |
|---|---|
| Services billed | 2,609 across 76 procedure codes |
| Paid by Medicare | $143,509 |
Part D prescriptions in 2024
| Prescriptions (claims) | 365 · 370 30-day fills |
|---|---|
| Patients | 260 |
| Total drug cost | $53,934 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | State University of New York at Buffalo School of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Hand Surgery |
| Secondary specialties | Orthopedic Surgery |
Medical group
- Commons Clinic Medical Group, PCMarina Del Rey, CA · 21 clinicians
Hospital affiliations
- Uci Health-LakewoodLakewood, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$29.23 · 2 payments from 1 company
- 2024$33.96 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Endo USA, Inc. | $29.23 | 2 |
What the 2025 payments were for
- Food and Beverage$29.23 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records