Richard Owguan Chen, MD
NPI 1598929069ActiveIndividual· Dermatology· Stanford, CA
Dermatology (MD) in Stanford, California, trained at Stanford University School of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $289,519 for 246 claims, against $16,494 paid for services in 2024.
Overview
| NPI | 1598929069 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 15, 2008 |
| Last updated in NPPES | Apr 16, 2024 |
| Certified by provider | Apr 16, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | A105615 | 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 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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 118 |
|---|---|
| Services billed | 557 across 15 procedure codes |
| Paid by Medicare | $16,494 |
Part D prescriptions in 2024
| Prescriptions (claims) | 246 · 294 30-day fills |
|---|---|
| Patients | 78 |
| Total drug cost | $289,519 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Dermatology |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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