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Established in December, 2000, KASS-MSO, Inc., is a Missouri corporation located in Valley Park, Missouri, a St. Louis suburb. We provide valuable administrative support services to medical practices and healthcare-related organizations. As an independently owned and operated company, we are able to focus exclusively on our clients and their needs. We aspire to do so ethically, professionally, effectively, and profitably.

On behalf of our clients and ourselves, we employ nearly one hundred staff. Our affordable and innovative business solutions enable each client to access high quality services and equipment for information technology, billing systems, accounting, financial reporting, payroll and paycheck services, personnel benefits, inventory management, operational assessments and general management consulting. In the past decade, we have served nearly one hundred physicians and healthcare organizations. For more information or a confidential, no-obligation assessment, please contact our principals at (636) 225-5445.

KASS principals each have more than twenty-five years' senior management experience, and many knowledgeable staff members at our Service Resource Center have provided administrative support to medical practices for more than a decade. Frequent interaction with physicians and their office managers is an important way we build positive and dynamic relationships with our clients. We pride ourselves in understanding our client's needs and providing solutions in a timely manner. Experience makes the difference.

Kathleen T. ArinkKathleen T. Arink is co-founder of KASS-MSO, Inc., and serves as its President and Chief Executive Officer. She has more than twenty five years of accounting and finance experience, the past eighteen years in physician practice management. Prior to forming KASS, Kathleen was Executive Administrative Director and Chief Financial Officer of The St. Louis Medical Group. She also has experience in banking and financial services. Kathleen is a graduate of Maryville University with a Bachelor of Science Degree in Accounting.
Steven R. StoutSteven R. Stout is co-founder of KASS-MSO, Inc., and its Development Partner. Prior to KASS, he served as Chairman and Chief Executive Officer of Tenet's Deaconess Health System; Chief Operating Officer of Tenet's St. Louis Healthcare Market; and Vice Chairman of St. Louis University Hospital Board of Directors. Previously, he was a project manager with a Philadelphia, PA-based management consulting firm. Steven earned a Bachelor of Science Degree in Communication from St. Louis University and a Masters in Business Administration from Washington University (St. Louis).
KASS-MSO, Inc. · 530 Vance Road · Valley Park, MO 63088 · Phone (636) 225-5445 · Fax (636) 225-5552
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