Markus Muhlhauser, CEO

Markus Muhlhauser brings over 20 years of expertise in healthcare revenue cycle management to PractiSource. Prior to founding PractiSource, Markus served as CEO of PhyLogic Healthcare, a nationwide physician revenue service company he founded in 2001. He led PhyLogic to 10 years of consistent, positive growth without exception. In 2011, PhyLogic was acquired by ADP AdvancedMD where Markus served as VP of Business Development and RCM Sales.

Prior to 2001, he was founder and president of MGM Integrated Services, the business development and sales and marketing division of a large billing and practice management systems company. Markus started his career as a Reimbursement Specialist with the Medical Bureau of Economics (MA) where he led large A/R management projects and served as a client liaison to clients such as Massachusetts General Hospital. Markus holds a Bachelor of Arts degree from the University of Hartford.

He understands that our clients work hard and provide valuable services to their patients and therefore deserve to get paid appropriately.

Markus and his wife Ania have three children. He and his family live in Connecticut and also spend significant time in Florida. Markus served his community in the field of law enforcement as well as in the United States Marine Corps. He currently volunteers his time as a Chief Instructor in Wildlife Conservation for the Connecticut Department of Environmental Protection and serves on multiple boards.


Frank Perrotta, Jr., CTO

Frank Perrotta serves as PractiSource’s Chief Technology Officer, and is a founding member of the company. He brings nearly 30 years of Healthcare technology experience to PractiSource where he is responsible for all aspects of technical operations such as, software design, IT system integrations, interoperability and implementation.

Frank started his entrepreneurial career designing and developing enterprise class software solutions for a number of Fortune 500 companies. Over 20 years ago, he focused on developing industry leading applications for healthcare including practice management systems. In fact, Frank was responsible for developing one of the earliest successful practice management SAAS models which he has since delivered via a myriad of platforms throughout his career.

As a founding partner and CTO of SSIMED Corporation, he developed medical billing and practice management software systems serving thousands of medical providers. SSIMED was a highly successful provider of healthcare software as well as being a large medical billing and RCM firm processing billions of dollars of claims In addition to Frank’s billing operations, IT, and implementation leadership roles, he also was responsible for the development of a CCHIT, ONC-HIT Electronic Health Record system.SSIMED was later acquired by Origin Healthcare Solutions where he served as Vice President of Technology.

Frank’s education is from Central Connecticut State University and Rensselaer Polytechnic Institute. Frank resides in Connecticut and enjoys being a dad to his son.