Mario Hernandez

As the medical biller and coder, managed the complete billing cycle from start to finish across multiple specialties including SNF, cardiovascular, dialysis, assisted living, and general hospitalization. Took ownership of every stage of the revenue cycle — from coding and claims submission to collections and account reconciliation — while ensuring accuracy, efficiency, and full compliance with regulatory standards.

• Performed end-to-end billing functions, including charge entry, coding, insurance verification, claims submission, denial management, collections, and payment posting.
• Accurately applied ICD-10, CPT, and HCPCS codes across a variety of complex medical services, ensuring clean claim submission for faster reimbursement.
• Oversaw accounts receivable workflows, reconciled bank deposits, processed patient payments, and managed outstanding balances.
• Maintained constant communication with insurance providers, physicians, and department staff to resolve claim discrepancies and ensure documentation accuracy.
• Led internal audits and compliance checks, ensuring strict adherence to payer policies, HIPAA regulations, and internal billing standards.
• Served as a go-to trainer for new billing staff, onboarding team members and standardizing training documentation and workflows.
• Developed and refined billing procedures to improve claim acceptance rates, reduce denials, and accelerate cash flow.
• Handled complex, multi-payer accounts and processed appeals for denied claims, securing payments through both provider portals and direct insurer communication.
• Demonstrated exceptional customer service in resolving patient inquiries and billing concerns while maintaining data privacy.