ASC SoftwareDelivered on a single platform in the cloud, SIS Complete simplifies ASC operations from start to finish.
Revenue Cycle ServicesAccelerate your revenue cycle with tech-enabled billing, coding, and transcription solutions delivered by our team of RCM experts.
ComplianceSimplify compliance management with SIS Comply, a comprehensive, easy-to-use solution purpose-built for ASCs.

Forward-thinking ASCs can use modern technology, including AI and automation, to protect and grow revenue. Gain a clear framework for selecting and deploying new solutions, preparing staff and partners for change, and strengthening revenue cycle performance.

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Discover how SIS transformed Saint Luke's South Surgery Center's financial performance, enhancing cash flow and operational efficiency through strategic partnership and improved workflows.
Saint Luke's South Surgery Center, located in Overland Park, Kansas, performs 300-400 cases per month with major service lines in cataracts, GI, orthopedics, and self-pay procedures. While clinical operations were strong, the ASC faced a range of revenue cycle management (RCM) challenges, leading to financial instability and limited performance transparency.
The center used an outdated practice management software with multiple manual, paper-based processes, compounding difficulties caused by business office turnover and a backlog of unresolved billing. NueHealth, the center’s management company, identified an urgent need for experienced revenue cycle support to restore financial health and implement consistent operational processes across billing, coding, A/R management, and payment posting.
Saint Luke's South initially engaged SIS Revenue Cycle Services (RCS) on a short-term basis to address turnover challenges. The SIS RCS team quickly identified several significant revenue cycle issues:
These operational gaps contributed to a marked decline in financial performance and a growing disparity between expected and actual cash flow. At the onset of the SIS partnership, Saint Luke's faced a shortfall of more than $800,000 in cash collections relative to net revenue projections, as well as 50% of cases being over 60 days in accounts receivable and an additional 35% of cases being over 120 days in accounts receivable, highlighting the need for immediate intervention.
In response to these findings, NueHealth expanded its engagement with SIS, transitioning from temporary staffing to a comprehensive, full-service RCM partnership.
SIS began providing charge entry, billing, and A/R support in June 2025. As additional gaps surfaced, NueHealth transitioned Saint Luke's to a Full-Service Revenue Cycle Services model, including coding support, by September 2025.
SIS RCS deployed a structured recovery and stabilization framework comprising the following:
SIS assembled a dedicated team with expertise aligned to the complexity of Saint Luke's RCM environment:
Upon taking over payment posting responsibilities, SIS thoroughly identified and resolved critical issues, including:
SIS took proactive steps to address these historical discrepancies, ensuring all prior errors were rectified. Additionally, they implemented a structured, reliable monthly reconciliation process to maintain accuracy and prevent similar issues from recurring. This approach not only improved financial clarity but also established a foundation for smoother operations moving forward.
To drive consistency and efficiency, SIS implemented clear, repeatable workflows and reporting standards across several key financial areas:
This commitment to comprehensive reporting provided NueHealth with actionable visibility, allowing them to track ongoing improvements and monitor progress with greater precision.
Saint Luke's South Surgery Center realized measurable, rapid improvements in its revenue cycle performance:
As the SIS RCS team worked through unbilled volume, overall aging improved significantly.
As SIS implemented its new revenue cycle management processes, they systematically addressed the backlog of unresolved accounts receivable (A/R) and began the meticulous work of correcting and resubmitting previously unpaid claims:
With enhancements in payer setup, greater coding precision, and improved consistency across the entire workflow, Saint Luke's achieved several key billing improvements. These refinements led to:
By fostering a culture of consistency and accountability at Saint Luke's South, SIS helped fortify their revenue cycle from end to end. This was achieved via:
NueHealth consistently cited the SIS team’s professionalism, responsiveness, and commitment to operational excellence, noting the team “goes above and beyond” to deliver results.
What began as a short-term staffing arrangement has evolved into a trusted, long-term strategic partnership, anchored by transparency, measurable financial achievement, and operational discipline. With SIS RCS, Saint Luke's operates with greater predictability, improved cash flow, and enhanced process integrity.
Encouraged by these outcomes, NueHealth is expanding its partnership with SIS across additional centers—with more to follow.
SIS is proud to empower hundreds of ASCs in building a sustainable, scalable revenue cycle platform—delivering financial stability today and positioning the organization for growth tomorrow.
Ready to streamline your facility's operations and maximize profitability?
Learn more about SIS Revenue Cycle Services by scheduling a consultation today.
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