James J. Chang, MD
NPI 1306924105ActiveIndividual· Urology· Oakland, CA
Urology (MD) in Oakland, California, trained at University of California, Davis School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $75,518 for 1,126 claims, against $1,456 paid for services in 2024.
Overview
| NPI | 1306924105 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 1, 2006 |
| Last updated in NPPES | Dec 13, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | G80347 | 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 - Urology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 18 |
|---|---|
| Services billed | 29 across 11 procedure codes |
| Paid by Medicare | $1,456 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,126 · 2,801 30-day fills |
|---|---|
| Patients | 405 |
| Total drug cost | $75,518 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Urology |
| Telehealth | Offers telehealth |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Hospital affiliation
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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