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Michael A. Witcik, MD

NPI 1568625713ActiveIndividual· Internal Medicine, Cardiovascular Disease· La Crosse, WI

Internal Medicine, Cardiovascular Disease (MD) with Gundersen Lutheran Medical Center Inc and 9 other groups, practicing in La Crosse, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $554,971 for 854 claims, against $74,913 paid for services in 2024. Abbott Laboratories reported $522.40 in payments in 2025, mostly food and beverage. Lists Gundersen Boscobel Area Hospital and Clinics and 4 other hospitals as hospital affiliations.

Overview

NPI1568625713
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 8, 2008
Last updated in NPPESDec 23, 2013

Specialties and licenses

About license numbers in NPPES

Exclusion screening

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

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Cardiovascular Disease (Cardiology) (IA); Practitioner - Cardiovascular Disease (Cardiology) (MN); Practitioner - Internal Medicine (WI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients3,298
Services billed5,130 across 46 procedure codes
Paid by Medicare$74,913

Part D prescriptions in 2024

Prescriptions (claims)854 · 1,991 30-day fills
Patients203
Total drug cost$554,971
Generic share74% of claims

Medicare sources and data years

Education and affiliations

Graduation year2007
Medicare specialtyInternal Medicine
Secondary specialtiesCardiovascular Disease (Cardiology)

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$522.40 · 8 payments from 1 company

Top paying companies in 2025

CompanyAmountPayments
Abbott Laboratories$522.408

What the 2025 payments were for

  • Food and Beverage$264.61 · 5 payments
  • Travel and Lodging$257.79 · 3 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other cardiologists in La Crosse

All 28 cardiologists in La Crosse · All cardiologists in Wisconsin