Our Services Overview
Janice Grankowski - Principal, Senior Advisor
Jan Grankowski is a senior healthcare revenue cycle executive with decades of experience leading enterprise-scale financial performance, payer strategy, and operational transformation initiatives across complex health systems.
Jan has held executive leadership roles within nationally recognized, not-for-profit healthcare organizations, where she has been responsible for optimizing end-to-end revenue cycle operations, improving payer yield, strengthening reimbursement strategies, and driving measurable performance outcomes across multi-hospital environments. Her background includes executive oversight of revenue cycle performance, payer contracting alignment, operational efficiency, and governance-level financial accountability.
Throughout her career, Jan has been recognized for her ability to bridge strategic vision with operational execution — aligning executive leadership, frontline teams, and external partners to deliver sustainable financial results while maintaining patient-centric and compliance-driven practices. She brings deep expertise in revenue integrity, payer relations, performance analytics, and large-scale change management.
As a Principal of RCS-Advisors, Jan provides strategic advisory services to healthcare organizations, physician groups, and healthcare-adjacent partners seeking to improve revenue performance, navigate payer complexity, and implement disciplined, data-driven operational frameworks. Her advisory approach is grounded in real-world executive experience, transparency, and long-term value creation.
Sheila San Antonio - Principal, Advisor
Sheila Sanantonio is a healthcare operations and vendor management executive with extensive experience overseeing enterprise vendor ecosystems, contract governance, and operational risk management within large healthcare organizations.
Sheila has led vendor management and procurement-adjacent functions supporting complex healthcare environments, where she was responsible for vendor selection, performance oversight, contractual compliance, and alignment of third-party services with organizational objectives. Her work has focused on ensuring accountability, cost discipline, service quality, and risk mitigation across critical vendor relationships.
With a strong foundation in healthcare operations, Sheila brings a disciplined, governance-oriented perspective to vendor and partner management — emphasizing measurable performance standards, clear contractual expectations, and cross-functional collaboration between operational, legal, compliance, and finance teams. She is particularly adept at translating organizational requirements into structured vendor frameworks that support scalability and regulatory alignment.
As a Principal of RCS-Advisors, Sheila advises healthcare organizations and partners on vendor strategy, operational governance, and sustainable partnership models. Her advisory work helps clients strengthen vendor accountability, reduce operational risk, and build resilient, transparent relationships that support both financial and operational goals.