Nephrologists are legally permitted to own or hold financial stakes in dialysis clinics, but their ownership activities are strictly regulated by complex federal healthcare laws designed to prevent conflicts of interest and abusive billing practices. Key legislative frameworks such as the federal Stark Law and the Anti-Kickback Statute prohibit physicians from referring Medicare or Medicaid patients to entities, including dialysis facilities, where they or their immediate family members maintain a financial relationship unless specific statutory exceptions are met. While joint ventures between physicians and major dialysis providers like Fresenius or DaVita are common and legally structured to comply with safe harbor rules, outright unmonitored physician ownership is heavily restricted to prevent doctors from profiting excessively off the volume of treatments they prescribe.