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Mark Ehlers

NPI 1003342866ActiveIndividual· Urology· Milwaukee, WI

Urology in Milwaukee, Wisconsin, trained at University of Wisconsin School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $200,117 for 1,477 claims, against $63,587 paid for services in 2024. Calyxo, Inc. was the largest of 2 companies reporting payments in 2025, $223.60 in all, mostly food and beverage.

Overview

NPI1003342866
StatusActive
Entity typeIndividual
Sole proprietorYes
NPI issuedMay 11, 2017
Last updated in NPPESDec 5, 2022
Certified by providerDec 5, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Urology Primary208800000X77320WI

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Urology (WI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients233
Services billed1,695 across 68 procedure codes
Paid by Medicare$63,587

Part D prescriptions in 2024

Prescriptions (claims)1,477 · 2,992 30-day fills
Patients360
Total drug cost$200,117
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Wisconsin School of Medicine
Graduation year2017
Medicare specialtyUrology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$223.60 · 2 payments from 2 companies
  • 2024$178.22 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Calyxo, Inc.$179.321
Dendreon Pharmaceuticals LLC$44.281

What the 2025 payments were for

  • Food and Beverage$223.60 · 2 payments

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

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