Surgeon profile

Michael Larsen, MD

Gastroenterology · Seattle, WA 98101NPI 1962685222

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

Contactverified live in NPPES · Jul 9, 2026

Active NPI1100 9TH AVE, SEATTLE, WA 98101☎ 206-223-2319

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Operates atCMS affiliations, refreshed monthly

UCSF MEDICAL CENTER · SAN FRANCISCO, CAMARINHEALTH MEDICAL CENTER · GREENBRAE, CA

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Tracked procedure volumes

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

157 Medicare cases/yr

135 patients

4 procedures

Procedure	Cases	Trend	Patients
ERCP with Stent Placement CPT 43274	62	▲ +82%	45
Upper GI Endoscopy (EGD) with Biopsy CPT 43239	48	▲ +33%	44
Colonoscopy with Polypectomy (Snare) CPT 45385	35	▲ +75%	35
Colonoscopy with Biopsy CPT 45380	12	▼ -20%	11

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

$328 total received, 2025

4 payments

2 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…