Mary Castello serves as Director, Revenue Enhancement at PMMC, where she leads recovery operations and strategic initiatives designed to help healthcare organizations maximize reimbursement and improve financial performance. With more than 20 years of experience in healthcare reimbursement, denials management, and operational leadership, Mary partners closely with clients and internal teams to identify financial opportunities, optimize workflows, and deliver measurable results. Her collaborative leadership style and commitment to accountability have made her a trusted resource for both clients and colleagues.
Over the course of her career, Mary has developed extensive expertise in underpayment recovery, denial resolution, reimbursement strategy, and operational process improvement. Her experience across multiple areas of healthcare finance results in a deep understanding of the operational challenges healthcare organizations face. At PMMC, she oversees teams dedicated to revenue enhancement and recovery services while helping clients navigate complex reimbursement issues and uncover opportunities for financial improvement. Mary has also played a key role in streamlining recovery operations, improving client reporting and transparency, and fostering cross-functional collaboration to drive stronger outcomes. In recognition of her leadership and contributions to the organization, she was named PMMC Employee of the Year in 2023.
Mary is an active member of Vistage, where she continues to develop her leadership and business strategy skills. Outside of work, she enjoys spending time with family and friends, reading, listening to music, attending sporting events, and traveling. She is passionate about building strong teams, creating lasting client partnerships, and helping healthcare organizations achieve long-term success.