Joseph Gawon Chan, DO
NPI 1922493139ActiveIndividual· Internal Medicine, Cardiovascular Disease· Chino, CA
Internal Medicine, Cardiovascular Disease (DO) in Chino, California, licensed in CA and FL, with an NPI issued in April 2015. Part D covered 2,211 prescriptions written in 2024, 82% of them generic. Pfizer Inc. was the largest of 9 companies reporting payments in 2025, $612.38 in all, mostly food and beverage.
Overview
| NPI | 1922493139 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 3, 2015 |
| Last updated in NPPES | Feb 27, 2024 |
| Certified by provider | Feb 27, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 20A15421 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | UO6277 | FL |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 2,211 · 5,482 30-day fills |
|---|---|
| Patients | 412 |
| Total drug cost | $331,225 |
| Generic share | 82% of claims |
Industry payments (Open Payments)
- 2025$612.38 · 26 payments from 9 companies
- 2024$702.52 · 25 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $190.46 | 8 |
| Amgen Inc. | $123.92 | 6 |
| Boston Scientific Corporation | $114.80 | 4 |
| Novartis Pharmaceuticals Corporation | $45.99 | 2 |
| Novo Nordisk Inc | $33.19 | 2 |
What the 2025 payments were for
- Food and Beverage$596.11 · 25 payments
- Education$16.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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