John H. Ganser, MD

NPI 1437187861ActiveIndividual· Surgery· Reno, NV

Surgery (MD) in Reno, Nevada, trained at Baylor College of Medicine (class of 1989). 178 Medicare patients in 2024, $114,193 paid; nearly all of their 60 Part D prescriptions were generic (93%). Stryker Corporation was the largest of 4 companies reporting payments in 2025, $847.71 in all, mostly food and beverage.

Overview

NPI	1437187861
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Jun 28, 2006
Last updated in NPPES	Jan 14, 2016

Specialties and licenses

Taxonomy	Code	License	State
Surgery Primary	208600000X	9279	NV
Thoracic Surgery (Cardiothoracic Vascular Surgery)	208G00000X	9279	NV
Surgery, Surgical Critical Care	2086S0102X	9279	NV

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 - General Surgery (NV)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	178
Services billed	339 across 50 procedure codes
Paid by Medicare	$114,193

Part D prescriptions in 2024

Prescriptions (claims)	60 · 60 30-day fills
Patients	38
Total drug cost	$1,823
Generic share	93% of claims

Medicare sources and data years

Education and affiliations

Medical school	Baylor College of Medicine
Graduation year	1989
Medicare specialty	General Surgery
Secondary specialties	Thoracic Surgery
Telehealth	Offers telehealth