David Yuan-Sou Chen, MD
NPI 1497018774ActiveIndividual· Dermatology· Saint Louis, MO
Dermatology (MD) in Saint Louis, Missouri, trained at Washington University School of Medicine (class of 2012). 87 Medicare patients in 2024, $260,118 paid; nearly all of their 156 Part D prescriptions were generic (93%). Botanix Sb Inc was the largest of 2 companies reporting payments in 2025, $152.85 in all, mostly food and beverage.
Overview
| NPI | 1497018774 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 20, 2012 |
| Last updated in NPPES | Apr 15, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 2016011492 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 87 |
|---|---|
| Services billed | 4,687 across 23 procedure codes |
| Paid by Medicare | $260,118 |
Part D prescriptions in 2024
| Prescriptions (claims) | 156 · 170 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $120,248 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Washington University School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Dermatology |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliation
- Barnes Jewish HospitalSaint Louis, MO
Industry payments (Open Payments)
- 2025$152.85 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Botanix Sb Inc | $137.81 | 1 |
| Janssen Biotech, Inc. | $15.04 | 1 |
What the 2025 payments were for
- Food and Beverage$152.85 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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