Our Executive Team

David Brown

David Brown

Chief Executive Officer and Founder

David leads VOX Telehealth with a clear vision of what patients need and what physicians and healthcare providers want in order to drive compliance and improve outcomes. He brings more than 20 years of entrepreneurial experience spanning several industries, including behavioral healthcare, technology, banking, and retail. Prior to founding VOX Telehealth, David spent 10 years overseeing patient engagement for a multi-state behavioral healthcare practice, and understands the importance of connectivity and programs that engage patients in a meaningful and effective way. Through David’s leadership, VOX has become an emerging leader in the growing field of patient-centered care programs. David earned his Bachelor’s from Vanderbilt University and his Master’s from Westminster.

Lindsay Johnson Chang

Lindsay Johnson Chang

Vice President, Program Management

Lindsay joined VOX Telehealth in 2014, bringing more than 12 years of engineering and project management expertise, specifically in the development and commercialization of medical devices. Previously, Lindsay served as associate director of development of orthobiologics with Zimmer, a leading designer and manufacturer of orthopedic reconstructive, spinal, and trauma devices. During her tenure with Zimmer, she commercialized several bone graft substitute products, cartilage repair products, and surgical instruments. She also held roles in research and in engineering for custom sized implants. Lindsay earned her Bachelor’s from Duke University and her Master’s in biomedical engineering from the University of Texas at Austin. Lindsey is also a certified Project Management Professional.

Phil Feldstein

Phil Feldstein

Vice President of Strategic Client Solutions

Philip Feldstein joined VOX Telehealth in 2015 with more than 10 years of experience in orthopedic service line management. In his role, Phil is responsible for the development and strategy of the OrthoCare product. Throughout his career, Phil has worked with more than 100 hospitals, physician groups, and other outpatient ancillary service providers to develop strategies for optimizing care, while balancing the financial and volume growth. Previously, Phil was a senior marketing strategy and business development manager at Biomet-Orthopaedic Advantage, a global leader in musculoskeletal healthcare. He also served as a senior director and marketing strategist at Accelero Health Partners, a leading consulting firm for orthopedic programs. Phil graduated from Indiana University with a Bachelor’s degree in telecommunications and earned his Master of Business Administration with a focus on Marketing and Strategic Management from the University of Illinois in Chicago.

Chris Leone

Chris Leone

Chief Technology Officer

Chris joined VOX Telehealth in 2014, bringing more than 30 years of IT and management experience. Throughout his career, Chris has led significant design, implementation and management projects for clients spanning corporate, legal and government sectors throughout the US, Europe and Asia. Most recently, Chris has focused on driving emerging technologies within in the healthcare industry. Leveraging his vast experience and knowledge, Chris is closely involved in the ongoing development and management of the VOX platform and diagnostic-specific patient engagement programs. Chris holds a degree in computer sciences and management from Delaware Community College.

Sonja Arevalo

Sonja Arevalo

Director - Patient Success

Sonja joined VOX Telehealth in 2016, bringing more than 20 years of experience in the fields of customer service, operations, and administration. With a focus on hospitality and customer care, Sonja has led numerous teams and provided training for other professionals in various industries. Sonja is passionate about applying her experience and skill sets within the healthcare industry and supporting patients to be active partners in their care journey. She holds a degree from Cairn University.

Mark Philipson

Mark Philipson

Associate - Strategic Solutions

Mark joins VOX Telehealth from Vanderbilt University, where he recently graduated with a degree in Medicine, Health and Society. An active intern and assistant in several research projects at Vanderbilt and the University of Pennsylvania, Mark supports the VOX team through research and development of educational protocols and content for the collaborative creation of our procedure and disease specific patient management solutions. Prior to VOX Telehealth, Mark also served as Senior EMT for the Warrington Ambulance Station in Pennsylvania and as a staff writer for The Sports Quotient.

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