Johnson Chan, MD
NPI 1871679720ActiveIndividual· Hospitalist· San Jose, CA
Hospitalist (MD) in San Jose, California, trained at University of California, Geffen School of Medicine (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $41,993 for 393 claims, against $3,676 paid for services in 2024.
Overview
| NPI | 1871679720 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 31, 2006 |
| Last updated in NPPES | Dec 22, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | A60316 | 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 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 22 |
|---|---|
| Services billed | 45 across 5 procedure codes |
| Paid by Medicare | $3,676 |
Part D prescriptions in 2024
| Prescriptions (claims) | 393 · 758 30-day fills |
|---|---|
| Patients | 177 |
| Total drug cost | $41,993 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Internal Medicine |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Hospital affiliation
- Kaiser Foundation Hospital-San JoseSan Jose, 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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