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 Shavara. 

He has over a decade of experience in developing commercial software.  Before Shavara, Ryan worked in a variety of industries, including healthcare, but ranging from online retail to National security clearance work.  At Shavara, 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.


Jonathan Morse, M.S. - Director, Sales and Marketing