Surgeon profile

Michael Chang, D.O.

Physical Medicine and Rehabilitation · Walnut Creek, CA 94598NPI 1205934262

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

Contactverified live in NPPES · Jul 8, 2026

Active NPI2405 SHADELANDS DR, WALNUT CREEK, CA 94598☎ 925-939-8585

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Operates atCMS affiliations, refreshed monthly

SUTTER DELTA MEDICAL CENTER · ANTIOCH, CAJOHN MUIR MEDICAL CENTER - WALNUT CREEK CAMPUS · WALNUT CREEK, CA

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Tracked procedure volumes

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

488 Medicare cases/yr

405 patients

1 procedure

Procedure	Cases	Trend	Patients
Transforaminal Epidural Injection — Lumbar CPT 64483	488	▲ +16%	405

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

$252 total received, 2025

6 payments

3 manufacturer relationships on file

See exactly which companies pay this surgeon — and how much — with a paid plan.

7-year payment trajectory (who's warming up, who's cooling off on this surgeon) is a paid feature. Unlock

Pulling CY2025 industry payments + 7-year history…