William Min-Choy Chen, M.D.
NPI 1003855800ActiveIndividual· Family Medicine· Spring, TX
Family Medicine (M.D.) in Spring, Texas, trained at Baylor College of Medicine (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $329,833 for 2,934 claims, against $53,081 paid for services in 2024. Amgen Inc. was the largest of 9 companies reporting payments in 2025, $425.77 in all, mostly food and beverage.
Overview
| NPI | 1003855800 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 6, 2006 |
| Last updated in NPPES | Jul 13, 2021 |
| Certified by provider | Jun 17, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | K0275 | TX |
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 - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 147 |
|---|---|
| Services billed | 655 across 23 procedure codes |
| Paid by Medicare | $53,081 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,934 · 7,134 30-day fills |
|---|---|
| Patients | 236 |
| Total drug cost | $329,833 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Family Practice |
Medical group
- Sim Family Clinic, P.A.Spring, TX · 2 clinicians
Hospital affiliations
- Houston Methodist Willowbrook HospitalHouston, TX
- St Luke's Hospital at the VintageHouston, TX
Other facilities
- Phoenix Healthcare Services, IncHome health agency · Houston, TX
Industry payments (Open Payments)
- 2025$425.77 · 16 payments from 9 companies
- 2024$227.83 · 13 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $201.11 | 5 |
| Kowa Pharmaceuticals America, Inc. | $77.26 | 4 |
| Exact Sciences Corporation | $29.49 | 1 |
| Abbott Laboratories | $25.98 | 1 |
| Glaxosmithkline, LLC. | $21.65 | 1 |
What the 2025 payments were for
- Food and Beverage$425.77 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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