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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.

Jay Lopez

Corporate Secretary/Director

Jay Lopez serves as Corporate Secretary/Director for ESI Healthcare Business Solutions. He is responsible for overseeing the Information Technology infrastructure. Jay also serves as President and CEO of Estill Medical Technologies, Inc. (an associate company of ESI), 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., an associate company of ESI. 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.

Pat Rodemers

Vice President, Product Management and Sales

As Vice President of Product Management and Sales for ESI Healthcare Business Solutions, Pat Rodemers is responsible for driving the Pharmacy Services product offerings, developing new client relationships and channel partners, and determining new markets and service offerings. Pat brings over 25 years of experience in healthcare, including two start-up disease management programs and ground-floor development of a pharmaceutical start-up and a biotech start-up. Prior to joining ESI, Pat led the transformation of business for GE Healthcare Partners South Central Region to an outcome, risk-based model. Pat also worked at Vizient where she led numerous teams and delivered innovative solutions for healthcare providers that improved outcomes, reduced costs and enhanced patient satisfaction. Mrs. Rodemers earned her Bachelors of Science in Health and a Master’s in Public Health Policy and Planning both at Virginia Tech. She also holds executive certificates in supply chain logistics from the Eli Broad School of Management at Michigan State and in Finance and Management from Southern Methodist University. She has extensive training in transformational innovation from Doblin Consulting and in human-centered design from the LUMA Institute.

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.

Pam Robbins

Senior Product Director

Pam Robbins serves as Senior Product Director, Contract Administration Payment Solutions (CAPS) for ESI Healthcare Business Solutions and functions as the primary liaison between clients, establishes business rules and claims payment criteria, develops quality controls, and ensures timely and accurate processing of electronic and manual claims. Ms. Robbins has over 20 years experience in TPA and BPO Operations concentrating on quality assurance during the past 12 years. Prior to joining ESI in 2008, she was employed by Perot Systems where she led a quality team of 20 auditors and 2 trainers using Six Sigma to implement quality measures for claims processing, eligibility, billing and customer service. Previously, Ms. Robbins developed and implemented a quality assurance team and processes for GE Group Administrators during which time she co-led the implementation of an outsourcing call center project off-shore. Her other contributions in the claims administration field include leadership of off-shore training for claims processing, leading a team in managed care services for several HMO, EPO and Indemnity clients, and creation of training documentation and management of a billing and eligibility team.

Anne Powell

Senior Director of Pharmacy Services

Anne Powell serves as the Senior Director of Pharmacy Services for ESI Healthcare Business Solutions (ESI) and is responsible for developing the Pharmacy Services product and service offerings, and establishing new pharmacy customer relationships. Ms. Powell has over 20 years of experience across local, regional and national healthcare settings for both healthcare providers and technology leaders. She is adept at leveraging technology and management savvy for patient care success. Prior to joining the company, Ms. Powell served as Executive Director of Pharmacy Services for Ascension Health where she was responsible for the quality, operational, clinical, distributional, and procurement functions. Ms. Powell spearheaded safe medication management practices and successfully prepared the hospital pharmacy, four cancer center pharmacies and all medical office for Joint Commission review of the medication management processes. Prior to her work at Ascension Health, Ms. Powell served as Senior Director of Implementation for McKesson APS where she managed P&L and operations for the implementation / installation function of all product lines as well company-wide contract administration and directed over 150 employees and external vendors. Ms. Powell received her degree in Pharmacy from the University of Louisiana at Monroe, and her Masters in Healthcare Administration from the Medical College of Virginia at VCU through which she completed her Administrative Residency.

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