Yonenka Castillo

Led and mentored a team of 10 supporting inpatient billing, accounts receivable, and denial management for high-dollar accounts. Analyzed AR and payer trends, resolved complex denials by reviewing payer policies and contract terms, and coordinated with payers and internal teams to improve claim acceptance and reimbursement outcomes.

Mentored 6 employees in outpatient billing for a Center for Musculoskeletal Care, delivering ongoing training on billing regulations, payer requirements, and workflows. Managed insurance verification and registration-related financial review, supported surgeons with encounter reporting, and oversaw denial resubmissions and payment variance workflows.

Managed physician billing workflows including insurance verification and financial review to support timely and accurate billing. Verified patient and insurance information in GE/IDX Centricity, processed charge corrections and adjustments, followed up on high-dollar receivables, and handled claim documentation requests for third-party agencies.

Supervised front desk and billing staff supporting orthopedics and physical therapy operations, including hiring and new-hire training. Managed charge entry and coding for surgical accounts, performed insurance verification, followed up on patient balances, ensured HIPAA confidentiality, and supported claims appeals.

Earned a Bachelor's in Business Administration at Walden University from 2022 to 2025.

Completed Physician Coding for CPC Preparation training to prepare for CPC-focused physician coding.

Completed Epic Professional Development Certification coursework covering revenue cycle and related reporting, clearance, and dashboard competencies.

Completed an Associate Applied Science degree in Healthcare Information Technology from 2006 to 2008.