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Surgeon profile

Timothy Chang, MD

Urology · Stanford, CA 94305NPI 1437594496

Database refreshed July 2026Live NPPES registry· Industry payments CY2025ⓘ sources

Checking live NPPES registry…

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Tracked procedure volumes

Latest federal claims release with year-over-year momentum. Eight device-heavy specialties tracked — more coming.

95 Medicare cases/yr
78 patients
2 procedures
ProcedureCasesTrendPatients
Ureteral Stent Placement CPT 5233255▲ +41%44
Ureteroscopy with Laser Lithotripsy CPT 5235640▲ +43%34

Industry relationships

CMS Open Payments, CY2025 general payments (published June 2026) — who already pays this surgeon.

Pulling CY2025 industry payments + 7-year history…