William Yawei Chen, DO
NPI 1538654355ActiveIndividual· Family Medicine· Ventura, CA
Family Medicine (DO) with County of Los Angeles, practicing in Ventura, California. Their prescriptions cost Medicare Part D more than their services did: $58,121 for 420 claims, against $3,570 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. reported $119.85 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1538654355 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 25, 2018 |
| Last updated in NPPES | May 23, 2021 |
| Certified by provider | May 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 20A17875 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 38 |
|---|---|
| Services billed | 178 across 46 procedure codes |
| Paid by Medicare | $3,570 |
Part D prescriptions in 2024
| Prescriptions (claims) | 420 · 908 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $58,121 |
| Generic share | 75% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- County of Los AngelesWilmington, CA · 397 clinicians
Other facilities
- Healthflex Home Health ServicesHome health agency · Oakland, CA
Industry payments (Open Payments)
- 2024$119.85 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $119.85 | 1 |
What the 2024 payments were for
- Food and Beverage$119.85 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 261 family medicine physicians in Ventura · All family medicine physicians in California