To legally run a DME business in Wisconsin, you must obtain specific licenses and certifications. Begin by selecting a legal business structure and registering it with the appropriate state agencies. Apply for a National Provider Identifier (NPI) and secure a Wisconsin Seller’s Permit for tax purposes. If you plan to bill Medicare or Medicaid, accreditation from a CMS-approved body is required. You must also complete enrollment through the Medicare Provider Enrollment, Chain, and Ownership System (PECOS). Ensure you meet HIPAA compliance standards to protect patient data. These steps help establish your business as credible and compliant with industry regulations.