Management Team

Michael Kos, M.D. – President

Dr. Kos grew up in Canada and is fluent in French.  At the age of 13, he was interested in software and began programming his own video games on a Commodore PET.  At University, his primary interests included economics and science.

Dr. Kos completed medical school and residency in Radiation Oncology in Canada. He opened his own practice in Reno, Nevada and required billing software.  Billing software with the specific needs of a Radiation Oncologist did not exist. 

Accountability and biller productivity were well known concepts in economics, but not in the field of medical billing.  Using his knowledge in programming, economics and Radiation Oncology, Dr. Kos used his expertise to build a company that would create the most superior Radiation Oncology billing system.  Having medical billers design a system to enhance workflow and productivity was an obvious first step.  He and his team continue to automate the billing process to maximize worker productivity.

Dr. Kos continues to practice Radiation Oncology on a full-time basis.  His primary clinical research interests are stereotactic radiosurgery and high-dose rate brachytherapy for prostate cancer.

Dr. Kos enjoys cooking, skiing, mountain biking, playing with his two children and reading.

Ryan Wexler – Software Architect

Ryan Wexler serves as the chief software architect for Medical Business Systems. 

He has over a decade of experience in developing commercial software.  Before joining MBS, Ryan worked in a variety of industries, including healthcare, but ranging from online retail to National security clearance work.  At MBS, Ryan drives development and product management.

Mr. Wexler is first and foremost an engineer and his technical resume is extensive.  He has substantial knowledge in the medical billing industry and is an expert in industry standards like ANSI, DICOM and HL7. 

Ryan’s combination of technical know-how and healthcare industry knowledge allows him a unique perspective and the ability to develop products that are innately intuitive.   

Ryan is an avid outdoorsman and when he is not working he can be found on the ski slopes or on a bike.

Lisa Faber – Customer Support and Training Manager

Lisa Faber is the Training and Support Manager for Medical Business Systems. 

Lisa has more than 20 years of billing experience in several specialties such as:  Radiation Oncology, Hematology Oncology, Neonatal Intensive Care, Pediatric Intensive Care, Psychiatry, Dermatology, Emergency Room and Family Practice Medicine.  Lisa's most recent billing experience was working for a thriving radiation oncology practice.

Lisa's extensive and broad experience gives her the tools to provide superior training and support to our customers.  In addition, her input as an experienced biller has influenced Iridium Suite's design and structure.  Using Lisa's expertise, Iridium Suite was created to optimize biller effectiveness and efficiency. 

Lisa enjoys spending time with her family, attending local sporting events, and relaxing near the water. 

Susan Morrison – Sales and Marketing Manager

Susan Morrison is the Sales and Marketing Manager for Medical Business Systems.

Susan graduated from Wake Forest University with a B.S. in Mathematics and Computer Science.  She began her career as a computer programmer and systems analyst.  While Susan enjoyed the problem-solving aspect of developing software, her interest in working closely with others was unfulfilled.  Susan began her sales career so that she could use her problem-solving skills to provide solutions which would meet her customers' needs.

Susan's career in sales has spanned more than 20 years.  She has marketed technical solutions for a variety of industries including telecommunications, test and measurement, and the medical field.  Susan has received extensive training in the consultative sales model and believes that working in concert with her customers is the best way to achieve mutual success.  She is a graduate of the Center for Creative Leadership's Leadership Development Program.

Susan and her family enjoy hiking, traveling and spending time with friends.