Elizabeth Howard Stalker has worked in the healthcare insurance industry for more than 20 years, spending twelve years as medical bill reviewer and billing expert. She is the current owner and CEO of CostFirst Corp. which provides lien resolution and bill review services. She has served as a medical bill review expert witness before a grand jury and jury settings in criminal courts as well as for workers compensation arena. She currently seats as an IBR (independent bill review) panel selection candidate for workers compensation judges. She is a certified professional coder through American Academy of Professional Coders. She is a standing member of National Alliance of Medical Auditing Specialist(NAMAS) and American Academy of Professional Coders (AAPC). She has received the certificate of ICD-10-CM Proficiency. She has provided a course training for California Department of Insurance on Medical Utilization Review topic.