We believe quality care starts with your organization’s health.
APS provides comprehensive revenue cycle management services to help your organization collect more and operate better.


40+ Years of Revenue Cycle Management Excellence
In 1982, our co-founders Gildo Cubellis and Glenn Taylor recognized the opportunity to develop a unique electronic interface to collect and submit claims for local radiology practices. They founded APS Medical Billing Solutions and opened a small office in Wareham, Massachusetts.
Tens of thousands of claims and 40+ years later, the tradition of excellence continues. Gildo Cubellis' son, W. Scott Cubellis, serves as President of APS and in 2019, APS joined Assembly Health to further support its clients with tech-enabled revenue cycle management services.
Our Values
Client-Focused
We deliver high-value services that reduce complexity and simplify processes.
Excellence & Integrity
We hold one another accountable to deliver accurate and timely results.
Biased to Action
We work with passion and urgency.
Improve Together
We do better work when we work as a team, leveraging our collective expertise.
Our Leadership Team
Scott Cubellis is the Founder of APS and son of co-founder Gildo Cubellis. Scott has a strong background in radiology revenue cycle management and is heavily focused on proactive client support. Scott's investments in technology and operational strategies have yielded consistent successful results forAPS clients. Outside of work, he enjoys cooking and spending time with family and friends.
Founder
APS Medical Billing Solutions

Casey Cottam is the Head of Physician RCM Services for Assembly Health, the parent company of APS Medical Billing Solutions. In his role driving operational excellence across Assembly’s RCM function, Casey leads process development, implementation, and reporting. He brings over 20 years of clinical and technical healthcare experience to the role. Outside of work, Casey enjoys spending time with his wife and son, outdoor activities, and throwing pottery.

Head of Physician RCM Services
Assembly Health

Brad Plausse is the Director of Operations for APS. Brad brings more than 20 years of experience in healthcare billing and management. He oversees a wide variety of RCM services including coding, A/R, payments, EDI, Call Center, and billing. Brad is an avid sports fan and loves rooting for the Patriots and Celtics. In his free time, he also enjoys spending time with family and friends but most of all with his grandkids!

Director of Operations
APS Medical Billing Solutions

Roger Cunha is the Director of Client Services for APS. For 20+ years, Roger has set a standard of excellence in APS client support. In his role, Roger leads a team of Client Services Managers as well as directly supports practices across the country. His focus on proactive client communication, custom financial reporting, and interdepartmental collaboration contributes to APS’ high client retention rate. Outside of work, Roger enjoys spending time with his family and friends, traveling, outdoor activities, attending local and professional sporting events and watching a good movie.

Director of Client Services
APS Medical Billing Solutions

Jesse Moniz is the Director of Provider Relations & NewClient Implementation. Jesse holds aPractice Manager Certification and brings with him 25+ years of Healthcare andRCM experience. Jesse’s attention to detail and hands on approach has shown timely execution and proven success in the onboarding of new clients. For the last 9+ years Jesse has managed the Provider Relations team, who has received best in class rankings from our clients and providers. When Jesse isn't engaged in his professional pursuits, he enjoys camping, fishing, spending time with his family and friends, and gardening.

Director of Provider Enrollment & New Client Implementation
APS Medical Billing Solutions

TonyaDuffy is the Director of Finance and Benefits, heading the finance, benefits and payroll for APS. She brings 28+ years of experience to her position and has taken on the role of managing payroll and benefits with Assembly as well.Outside of work, Tonya enjoys listening to audio books, weekending in Cape Cod and spending time with family and friends

Director of Finance and Benefits
APS Medical Billing Solutions