Mason Wade Rau, MD

NPI 1093274243ActiveIndividual· Internal Medicine· Gonzales, LA

Internal Medicine (MD) in Gonzales, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 2019). Their prescriptions cost Medicare Part D more than their services did: $788,321 for 5,068 claims, against $12,227 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 22 companies reporting payments in 2025, $1,296 in all, mostly food and beverage.

Overview

NPI	1093274243
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Mar 18, 2019
Last updated in NPPES	Mar 13, 2026
Certified by provider	Mar 13, 2026

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	330991	LA

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

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

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Internal Medicine (LA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	75
Services billed	195 across 16 procedure codes
Paid by Medicare	$12,227

Part D prescriptions in 2024

Prescriptions (claims)	5,068 · 8,255 30-day fills
Patients	335
Total drug cost	$788,321
Generic share	82% of claims

Medicare sources and data years

Education and affiliations

Medical school	Louisiana State University School of Medicine in New Orleans
Graduation year	2019
Medicare specialty	Internal Medicine
Secondary specialties	Emergency Medicine
Telehealth	Offers telehealth