Why Multi-Provider Dermatology Practices Struggle With Modifier Accuracy When multiple dermatologists, PAs, and locations are involved, modifier errors increase fast. Different documentation styles, overlapping procedures, and inconsistent coding workflows lead to underpayments, denials, and audit risk. Common challenges include incorrect use of modifiers 25, 59, and X{EPSU}, missed modifier requirements for same-day procedures, and lack of payer-specific rules across providers. Even when clai