Surgeon profile

Juan Diaz, M.D.

Interventional Cardiology · Fond Du Lac, WI 54935NPI 1780793737

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

Contactverified live in NPPES · Jul 7, 2026

Active NPI420 E DIVISION ST, FOND DU LAC, WI 54935☎ 920-926-8230

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Operates atCMS affiliations, refreshed monthly

SSM HEALTH ST AGNES HOSPITAL-FOND DU LAC · FOND DU LAC, WIWAUPUN MEMORIAL HOSPITAL · WAUPUN, WIRIPON MEDICAL CENTER · RIPON, WIAURORA MEDICAL CTR OSHKOSH · OSHKOSH, WIMARSHFIELD MEDICAL CENTER - BEAVER DAM (MMC-BD) · BEAVER DAM, WI

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Tracked procedure volumes

Latest federal claims release with year-over-year momentum. Orthopedics & cardiology tracked — more specialties coming.

111 Medicare cases/yr

94 patients

3 procedures

Procedure	Cases	Trend	Patients
Diagnostic Cardiac Cath (Left Heart) CPT 93458	61	▼ -24%	55
Coronary Stent Placement CPT 92928	39	▼ -41%	28
Pacemaker — Dual Chamber CPT 33208	11	▼ -35%	11

Industry relationships

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

$154 total received, 2025

7 payments

4 manufacturer relationships on file

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Relationship trajectory, 2019–2025

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…