Surgeon profile

David Knowles, MD

Urology · Mount Vernon, IL 62864NPI 1881699908

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

Contactverified live in NPPES · Jul 8, 2026

Active NPI4109 S WATER TOWER PL, MOUNT VERNON, IL 62864☎ 618-244-4060

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Operates atCMS affiliations, refreshed monthly

GOOD SAMARITAN REGIONAL HLTH CENTER · MOUNT VERNON, ILSSM HEALTH ST MARY'S HOSPITAL -CENTRALIA · CENTRALIA, ILSALEM TOWNSHIP HOSPITAL · SALEM, ILDEACONESS ILLINOIS CROSSROADS · MOUNT VERNON, ILMEMORIAL HOSPITAL OF CARBONDALE · CARBONDALE, IL

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Tracked procedure volumes

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

80 Medicare cases/yr

78 patients

4 procedures

Procedure	Cases	Trend	Patients
Ureteroscopy with Laser Lithotripsy CPT 52356	40	▲ +5%	39
Ureteral Stent Placement CPT 52332	16	▼ -33%	15
ESWL — Shockwave Lithotripsy CPT 50590	13	new	13
TURBT — Bladder Tumor Resection CPT 52235	11	new	11

Industry relationships

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

$970 total received, 2025

50 payments

15 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…