Geoffrey Alexander Sonn, MD

NPI 1275720351ActiveIndividual· Urology· Stanford, CA

Urology (MD) in Stanford, California, trained at University of California, Geffen School of Medicine (class of 2005). Mostly services rather than prescriptions: Medicare paid $114,430 for 417 patients in 2024, with only 29 Part D claims. Profound Medical Corp. reported $14.31 in payments in 2025, mostly food and beverage.

Overview

NPI	1275720351
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Oct 2, 2007
Last updated in NPPES	Mar 18, 2026
Certified by provider	Mar 18, 2026

Specialties and licenses

Taxonomy	Code	License	State
Urology Primary	208800000X	A96537	CA
Surgery	208600000X	A96537	CA

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Oct 9, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026	No match	—
New York OMIG · Nov 10, 2026	No match	—
Ohio Medicaid · Nov 10, 2026	No match	—
Pennsylvania Medicheck · Nov 10, 2026	No match	—
Washington HCA · Nov 10, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Urology (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	417
Services billed	637 across 29 procedure codes
Paid by Medicare	$114,430

Part D prescriptions in 2024

Prescriptions (claims)	29 · 63 30-day fills
Patients	11
Total drug cost	$1,238
Generic share	97% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of California, Geffen School of Medicine
Graduation year	2005
Medicare specialty	Urology
Secondary specialties	General Surgery
Telehealth	Offers telehealth