Matthew Braun Kaspar, MD

NPI 1275853319ActiveIndividual· Internal Medicine, Gastroenterology· Green Bay, WI

Internal Medicine, Gastroenterology (MD) in Green Bay, Wisconsin, trained at University of Texas Medical School at San Antonio (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $229,146 for 618 claims, against $34,794 paid for services in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $240.73 in all, mostly food and beverage.

Overview

NPI	1275853319
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Jun 10, 2010
Last updated in NPPES	Aug 29, 2022
Certified by provider	Aug 29, 2022

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	77224-20	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 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 - Gastroenterology (VA); Practitioner - Gastroenterology (WI)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	212
Services billed	325 across 25 procedure codes
Paid by Medicare	$34,794

Part D prescriptions in 2024

Prescriptions (claims)	618 · 822 30-day fills
Patients	420
Total drug cost	$229,146
Generic share	56% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Texas Medical School at San Antonio
Graduation year	2010
Medicare specialty	Gastroenterology
Secondary specialties	Internal Medicine