The Story of Rock Medical
Rock Medical was born from an unexpected turn of events. After accepting a COO role with an international non-profit and leaving a prior leadership position, Darren Tewes found the opportunity rescinded due to the COVID pandemic. What could have been a setback instead provided the chance to pause, reflect, and chart a new direction.
Following a relocation from Arizona to Wichita, Kansas, Mr. Tewes began connecting with local healthcare professionals. Through those conversations, he was introduced to Dr. Greg George, President of a large anesthesia provider group in the Midwest. Dr. George shared one of his greatest frustrations: the ongoing challenge of overseeing and optimizing revenue cycle management. After switching billing companies three times and still facing unsatisfactory results, he questioned whether a truly effective solution existed.
It soon became clear that Mr. Tewes—bringing extensive healthcare leadership experience—was uniquely positioned to help solve this problem. The solution would be built on transparency, billing accuracy, and partnership: a revenue cycle management solution that would act as an extension of the practice itself.
Recognizing that success depends on both strategy and people, Rock Medical brought in Julie McDaniel to lead operations. With more than 20 years of anesthesia RCM experience, from direct coding to managing large billing departments, Julie’s expertise, education, and passion made her the perfect fit to deliver billing excellence.
Launched in 2023, Rock Medical has already delivered measurable results. The company has increased client revenue collections by 7% and reduced accounts receivable days by 13, outperforming prior billing vendors and proving the value of its people-first approach.
Our Team
Darren Tewes
Chief Executive Officer
Darren is the founder of Rock Medical and serves as the Chief Executive Officer. He holds a master’s degree in business administration. A gifted leader with a passion for client service and patient care, Darren has excelled in the healthcare industry by driving business excellence with the end goal of serving people. With over 17 years of senior healthcare management, Darren brings experience in all facets of business leadership. Darren currently resides in Wichita, Kansas with his wife Bobbi. While not working you can find him on a pickleball court or spending time with his family.
Julie McDaniel
VP of Operations
Julie serves as the Vice President of Operations for Rock Medical. She holds a master’s degree in healthcare administration and has over 20 years of experience working at all levels of anesthesia revenue cycle management. Julie began her career in the anesthesia billing space at an entry level position, eventually working her way up to managing teams responsible for $60M in annual collections from more than 300 providers. In addition to her master’s degree, she has earned her CPC and CANPC certification. Outside of work she has held multiple positions in her local AAPC chapter, including serving as President. Julie currently resides in Birmingham, Alabama with her husband Phil and their two children.
Contact Us to Get Started!
Looking for a billing partner who will maximize your revenue and decrease your administrative burden? Reach out and let’s discuss how we can make this happen for you!
