John G. Touzios, MD

NPI 1841369832ActiveIndividual· Surgery· Waukesha, WI

Surgery (MD) in Waukesha, Wisconsin, trained at Northwestern University Feinberg Medical School (class of 2001). 193 Medicare patients in 2024, $73,038 paid; nearly all of their 197 Part D prescriptions were generic (97%). Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2025, $119.58 in all, mostly food and beverage.

Overview

NPI	1841369832
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Nov 6, 2006
Last updated in NPPES	Apr 24, 2019

Specialties and licenses

Taxonomy	Code	License	State
Surgery Primary	208600000X	46066-20	WI
Surgery, Vascular Surgery	2086S0129X	46066-020	WI
Colon & Rectal Surgery	208C00000X	46066-020	WI

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 4, 2026	No match	—
New York OMIG · Nov 4, 2026	No match	—
Ohio Medicaid · Nov 4, 2026	No match	—
Pennsylvania Medicheck · Nov 4, 2026	No match	—
Washington HCA · Nov 4, 2026	No match	—

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

Medicare

Enrollment (PECOS)	Enrolled Practitioner - General Surgery (WI)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	193
Services billed	447 across 81 procedure codes
Paid by Medicare	$73,038

Part D prescriptions in 2024

Prescriptions (claims)	197 · 231 30-day fills
Patients	99
Total drug cost	$2,927
Generic share	97% of claims

Medicare sources and data years

Education and affiliations

Medical school	Northwestern University Feinberg Medical School
Graduation year	2001
Medicare specialty	General Surgery
Secondary specialties	Colorectal Surgery (Proctology), Vascular Surgery