Management Team

David M. Lee

Chairman and CEO

Mr. Lee joined Allegiance Mobile Health as Executive Chairman in 2013 and was subsequently selected to also serve as CEO in 2014.  He brings an immensely varied background with extensive experience in rapid scaling across a diverse portfolio of industries. In addition to being the first institutional investor in Allegiance, Mr. Lee was also an investor in 2009 and served on the Board of Central Texas EMS until it sold in 2011.  Since 2007, Mr. Lee has also served as Executive Chairman of ESO Solutions.  He plays a key role in the organization’s strategy to develop and acquire EMS related products that capture the data needed to drive efficiencies, improve patient care, increase revenue and enhance the continuum of care.

For nearly 15 years, Mr. Lee has also served as Chairman, President and CEO of Sentient Ventures. In this capacity, his funds have invested over $80 million in 26 companies and he has participated as a Board member/observer for 13 portfolio companies. Previously, Mr. Lee served as Senior Vice-President of the Products Division of Viasoft. He was responsible for worldwide Marketing, R&D and Customer Support with an associated $100 million P&L.  Prior to Viasoft, Mr. Lee was with Tivoli systems where he went through an initial public offering, was subsequently acquired by IBM for $743 million and saw the company grow to annual sales exceeding $1 billion.

Mr. Lee has been active in the community and in non-profit organizations with such roles as Board Member, Entrepreneurs Foundation of Central Texas (EF), Board of Trustees Member, Trinity Episcopal School, Advisory Board Chairman, School of Management and Business, St. Edward’s University, Advisory Council Member, College of Natural Sciences, The University of Texas at Austin, Steering Committee Member, Venture Capital Fellows Entrepreneurship Program, Advisory Board Member, 3M Vision Grant (TxEntre) for Woman and Minority Entrepreneurs, Board Chairman, TexChange Austin and Steering Committee Member, Austin Technology Incubator (ATI).

Ricky L. Powell


Mr. Powell joined Allegiance in 2014 and brings nearly three decades of industry experience at a variety of levels. Prior to joining Allegiance, Mr. Powell served as Chairman and CEO of Guardian EMS which he founded in 2000. Under his leadership Guardian grew to become one of the most successful private ambulance services in Texas. As an entrepreneur, Mr. Powell has extensive knowledge in systems, marketing and all facets of field operations. Before founding Guardian, Mr. Powell held several key roles with Rural Metro including General Manager for Tennessee and Louisiana and Director of Marketing for Dallas. He also served in the U.S. Air Force where he began his career as a firefighter and medic.

He is dedicated to improving the quality of EMS for the citizens of the communities Allegiance serves. Mr. Powell recognizes his success is due to the Company’s most valuable asset – the dedicated professionals of Allegiance Mobile Health. 

Dr. Bryan Bledsoe

Medical Director

Dr. Bledsoe joined Allegiance Mobile Health as the corporate medical director in 2016, reporting directly to CEO David Lee. As a nationally renowned EMS medical director, author, and ER physician, Dr. Bledsoe leads Allegiance’s clinical practices, including Mobile Integrated Health initiatives. By utilizing evidence-based medicine and strategies for benchmarking multiple clinical indicators, Dr. Bledsoe and his team work to continually improve Allegiance’s clinical protocols and to develop continuing education programs to ensure the most advanced principles are being used to care for patients in the field. He is respected nationwide for his work with major EMS entities that cover large geographic areas. Dr. Bledsoe has a B.S. from the University of Texas and a D.O. from the University of North Texas. He completed a residency at Texas Tech University Health Sciences Center and at Scott & White Memorial Hospital/Texas A&M College of Medicine.

Dr. Bledsoe is also professor of emergency medicine at the University of Nevada School of Medicine (UNSOM). In addition, he has authored many EMS text books, including Paramedic Care: Principles & Practice, Paramedic Emergency Care, and Prehospital Emergency Pharmacology.

Daniel K. Gillespie

Regional President South

Mr. Gillespie currently serves as Regional President South for one of the fastest growing markets within the Company. Since joining Allegiance Mobile Health in 2014, he has applied his extensive knowledge of the industry to quickly adopt best practices and drive continuous improvement.  Mr. Gillespie previously held several management positions with Procarent of Indiana/Kentucky/Missouri eventually serving as Executive Director of their Missouri operations. Prior to Procarant, he held the position of Division General Manager of Rural/Metro Ambulance in Indiana where he led operations recognized as leading performers within the organization. Mr. Gillespie also served as Program Manager for the St. Vincent Hospital EMS and Critical Care Transport in Indianapolis.  He is a certified EMT and served on the Wayne Township Indianapolis Fire Department.

Mr. Gillespie graduated from University of Indianapolis with a degree in accounting and business administration.  He also serves on the Board of Directors for the American Ambulance Association and is actively involved in issues affecting the EMS industry on a national level.

Keri Rudasill

Chief Financial Officer

Ms. Rudasill joined Allegiance Mobile Health in 2013 as Vice President of Finance and became the acting CFO in 2016. She is responsible for corporate finance, including Accounting, Payroll, Business Analytics, and Tax, Audit and Fixed Asset management. Ms. Rudasill graduated from Angelo State University with a BBA in Accounting and became a Certified Public Accountant. She has been a licensed CPA for more than 20 years. Before joining the Allegiance team, she worked in Banking and Public Accounting. Ms. Rudasill brings a wealth of accounting and finance experience to Allegiance Mobile Health.

Rebecca Coufal

Vice President - Controller

Ms. Coufal is the Vice President - Controller at Allegiance Mobile Health with responsibility for overseeing the Accounting department which includes accounting, general ledger, banking, accounts payables and payroll. She also assists the finance department with financial reporting, tax, audit and fixed asset management. Ms. Coufal has been with the company since its inception in January 2012. Prior to joining Allegiance Mobile Health, Ms. Coufal worked in several staff accountant positions for Brockway, Gersbach, Franklin, and Neimier PC and Pamela Winkler PC, as well as being an independent business owner for fourteen years. She exemplifies extensive accounting, finance, tax and management knowledge and exercises that knowledge in her daily activities within the company. Ms. Coufal holds a BBA in Accounting from Tarleton State University, an AA degree in Management from Temple College and multiple Certificates of Management and Accounting.

Hank Kimery

Vice President of Operations

Mr. Kimery joined Allegiance Mobile Health in 2014 and brings nearly a quarter century of EMS and operational experience. Mr. Kimery currently is responsible for the day to day management of Allegiance’s largest operations in the state. During his tenure, the operation has grown quickly while never sacrificing the high quality standards Allegiance Mobile Health believes in. Prior to joining Allegiance, Mr. Kimery served as Director of Operations for the Dallas/Ft. Worth area with Guardian EMS. During his seven (7) years at Guardian EMS, Mr. Kimery held a variety of management positions giving him an in depth understanding of the Dallas Metroplex market. He  spent several years at Lifeguard Ambulance and became a Field Training Officer.  Mr. Kimery began his career in EMS with the Reno Fire Rescue in Lamar County, TX in the early 90’s as an EMT-B and while there was promoted to Fire Chief.

Larry Johnson

Vice President of Clinical Practices and Education

Mr. Johnson joined Allegiance Mobile Health in 2016 as Vice President of Clinical and Mobile Integrated Health (MIH) Research.  He is a national registered paramedic with nearly four decades of experience in pre-hospital care and emergency medical services. In addition to his responsibilities as Vice President of Clinical and MIH Research at Allegiance, Mr. Johnson will retain his position of adjunct faculty with the University of Nevada School of Medicine Pre-hospital and Disaster Fellowship, where he taught thousands of EMTs, paramedics, advanced practice paramedics and physicians.

Mr. Johnson as a manager worked in busy 911 systems as a medic, FTO and supervisor. In addition, he spent several years as a flight paramedic for CareFlite Dallas. He has worked with EMS agencies (hospital-based, municipal, private and public utility models) in and around Albuquerque, Dallas, Fort Worth, Houston, Oklahoma City, Tulsa, and Las Vegas, Nevada.  He has a background in EMS system design and startup, clinical education, research, CQI, project management, operations management, injury prevention programs and critical care transport.  Mr. Johnson has served as board member on several EMS (governmental and academic) advisory boards and currently serves as a content reviewer for the Continuing Education Coordinating Board for Emergency Medical Services (CECBEMS). Frequently, he is called upon to consult with EMS agencies who wish to pursue CAAS accreditation. In addition,