Chester Sim Chua, MD
NPI 1437293206ActiveIndividual· Internal Medicine· Yakima, WA
Internal Medicine (MD) with Yakima Valley Memorial Physicians, practicing in Yakima, Washington. In 2024 Medicare paid $93,974 for 299 patients, and Part D covered 445 of their prescriptions, 88% of them generic. Stryker Corporation was the largest of 3 companies reporting payments in 2025, $262.77 in all, mostly food and beverage. Lists Yakima Valley Memorial as a hospital affiliation.
Overview
| NPI | 1437293206 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 16, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD00047575 | WA |
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 - Internal Medicine (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 299 |
|---|---|
| Services billed | 1,299 across 10 procedure codes |
| Paid by Medicare | $93,974 |
Part D prescriptions in 2024
| Prescriptions (claims) | 445 · 473 30-day fills |
|---|---|
| Patients | 198 |
| Total drug cost | $31,338 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Yakima Valley Memorial PhysiciansYakima, WA · 391 clinicians
Hospital affiliation
- Yakima Valley MemorialYakima, WA
Industry payments (Open Payments)
- 2025$262.77 · 4 payments from 3 companies
- 2024$713.62 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $164.08 | 1 |
| Ceribell, Inc. | $67.71 | 1 |
| Astrazeneca Pharmaceuticals LP | $30.98 | 2 |
What the 2025 payments were for
- Food and Beverage$262.77 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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