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ESI Healthcare Business Solutions is a healthcare informatics company focused on connecting clinical and financial data to drive operational performance, achieve financial growth and improve quality of care. ESI applies proprietary technology with solid industry expertise to aggregate and analyze data and deliver healthcare intelligence to make sound business decisions.
Our Leadership Team

Leo Lopez

Chairman and CEO

Leo Lopez has served as President and Chief Executive Officer of ESI Healthcare Business Solutions since founding the company in 1989 and is responsible for the vision and strategy of the company. He is an entreprenenerur with a track record of building successful healthcare organizations, including ESI Healthcare Business Solutions and its predecessor companies including MediClaim, MediCall and Enrollment Services Inc. Mr. Lopez has been a pioneer for patient eligibility advocacy programs and formed Enrollment Services Inc. in 1989. As one of the first Medicaid enrollment agencies in Texas, Enrollment Services Inc. successfully enrolled over 1.5 million patients in various third-party eligibility programs.

Brandon Lopez

VP Business Operations

Brandon is VP Business Operations of ESI Healthcare Business Solutions. He is also co-owner of Estill Medical Technologies, the developers of Thermal Angel Blood and IV Fluid Infusion Warming system, the standard of care within the United States Department of Defense (DOD), Emergency Medical Services (EMS) and acute care facilities. Brandon also serves as advisor to Bonaventure Equity, LLC. Outside of Brandon’s 25 years of owning and operating healthcare related services and products, he is an active investor serving as Chairman and CEO of Lopez Capital Group and managing partner of LJBB Investment Group. The Portfolio of companies included Smoothie King (master franchisee for all stores located in Dallas), ViB Beverages, Critical Devices, Digital Convergence and Invincible Sportwear. He earned an MBA in Finance from Texas Christian University (TCU) and a B.A in Marketing from Southern Methodist University (SMU).

Jay Lopez

Corporate Secretary/Director

Jay Lopez serves as Corporate Secretary/Director for ESI Healthcare Business Solutions. Jay also serves as President and CEO of Estill Medical Technologies, Inc., where he manages the expansion of the Thermal Angel Blood and IV Fluid Infusion Warmer product line. Jay served as Chief Operating Officer of LJBB Investment Group, LP. Jay directed the company’s investments in healthcare (Mediclaim, Enrollment Services), food and beverage (ViB Beverages, Smoothie King), sportswear (Invincible Sportswear) and technology (DigitalConvergence, Critical Devices). He has experience as a business owner and investor in privately held businesses. Jay earned his Bachelor’s degree from Stanford University and a MBA from Washington University in St. Louis. He is currently a member of Business Executives for National Security (BENS) and American Security Project (ASP).

David Newby


As Controller at ESI Healthcare Business Solutions, David Newby is responsible for directing the financial planning and accounting practices for the organization. His focus includes driving profitability and operational efficiencies as well as a strong role in strategy development. Mr. Newby is also Controller and Director of Supply Chain for Estill Medical Technologies, Inc. Mr. Newby’s background includes management, accounting, inventory and business systems control. Prior to his tenure with the Company, he spent 15 years as a general life and health insurance agent, an agency owner of Assurity First Group and General Partner of Pro-Tech Agency where he was the Director of Operations and Finance. Before those positions, he was with Greenfield Sales Company, a multi-state automotive parts wholesale distributor. There he served as Director of Operations, Chief Financial Officer and Executive Vice President. Mr. Newby earned his Bachelor of Business Administration in Business Management from Texas Christian University in Fort Worth, Texas and he also holds a Group I, HMO and Property and Casualty Insurance License.

Nicole Wallace

Manager, Pharmacy Portfolio Services

Nicole Wallace is Manager of Pharmacy Portfolio Services for ESI Healthcare Business Solutions responsible for developing and driving the Pharmacy Services product offerings, establishing new pharmacy client relationships and channel partners, and determining new markets and service offerings. As a Registered Pharmacist, Nicole brings over 13 years of experience in healthcare. Prior to joining ESI, Nicole established leadership throughout both retail and hospital healthcare environments holding positions such as Director of Operations, Director of Pharmacy, Division Pharmacy Manager, and Pharmacist in Charge. Her outstanding interpersonal skills and business mind have given Nicole the opportunity to develop a successful track record of establishing positive relationships with customers. Nicole is dedicated to providing quality patient care and customer satisfaction. Nicole received her Doctorate of Pharmacy from Purdue University and her Executive Master of Science in Business Administration from the University of Texas at Arlington.

Thomas Yates

Director, Information Technology

Thomas Yates serves as the IT Director for ESI Healthcare Business Solutions. His information technology responsibilities include leading security focused software development, developing technical strategy and implementing policies. Mr. Yates is also responsible for managing technical safeguards for HIPAA compliance. Thomas Yates joined ESI in 2009 as a Network Administrator and was responsible for designing, implementing and supporting the critical IT infrastructure. Prior to joining ESI, Mr. Yates served as a production manager and software developer in the financial space for CardLab Inc. During his time at CardLab, Mr. Yates worked with a team to program a web front-end for customized visa gift cards. Mr. Yates has over 15 years of experience across all aspects of IT ranging from hardware and networking to software development. Mr. Yates earned his Bachelor degree in Network and Communications Management from DeVry University in Irving, TX. He is also a member of the Sigma Beta Delta Honor Society and an Aerohive Certified Wireless Professional.

Narasimha Kollarapu

Senior Software Developer

As Senior Software Developer for ESI Healthcare Business Solutions, Mr. Kollarapu is responsible for design (architect), development and deployment of ESI services, along with various web, windows and database applications. Prior to joining ESI Healthcare Business Solutions, Mr. Kollarapu served as a lead developer at Newgistics, Inc. During his tenure at Newgistics, Mr. Kollarapu designed and lead development of logistics applications. Mr. Kollarapu has over 11 years of diverse knowledge of various industries where he previously worked for Emerson Process Management, WMS Gaming (Scientific Games), Fidelity National Real Estate Solutions (Black Knight Financial Services), and Spectrum Health. Mr. Kollarapu earned his Master of Science degree in Computer Science from Towson University, Maryland and Bachelor of Engineering degree in Computer Science from Visvesvaraya Technological University, India.
Contact Us

Are you ready to learn more about our solutions? Contact us for more information:

(214) 826-4373
toll free (800) 929-2858