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Our Leadership

Extensive clinical research experience. Data and technology expertise. Foundational leadership in patient care. The determination to change patients’ lives for the better. This is what our team embodies.

Colleen Hoke

Colleen Hoke

President and CEO

Having held leadership and executive positions at clinical research organizations, specialty providers, and healthcare entities, Colleen has more than 25 years of experience in the areas of business development, organizational management, and executive team building. She was a key member of an executive team that built a successful early-phase research site that was later acquired by a major research corporation, and she has contributed to best practice standards for the Association of Clinical Pharmacology Units (ACPU). Colleen holds a bachelor’s degree of science from the University of Tennessee and is a graduate of the Wharton School of Business Executive Leadership course.

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Don Lazas, MD

Don Lazas, MD

Chief Medical Officer

With more than 25 years of experience in patient care, healthcare management and delivery, clinical research, and entrepreneurial innovation, Don is a leader who specializes in the care of digestive diseases. He is a graduate of the George Washington University School of Medicine and received post-graduate and fellowship training at Walter Reed Army Medical Center. He is currently a Fellow of the American College of Physicians and a Fellow of the American Gastroenterological Association.

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Stu Warren

Stu Warren

Chief Financial Officer

Stu has more than 33 years of finance and accounting experience, with a focus in healthcare for the last 20. During that time, he served in senior financial leadership roles responsible for corporate accounting, reporting, and forecasting at national healthcare networks. He currently serves as treasurer on the Board of Trustees at Battle Ground Academy, and in a similar role at Hope Smiles, a nonprofit dental philanthropic organization. Stu graduated from Murray State University.

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Brent Longenecker

Brent Longenecker

Chief Operating Officer

Brent has more than 20 years of progressive health care leadership experience. Prior to ObjectiveHealth, he served as Senior Division Vice President for Amsurg (Envision Healthcare) and was responsible for working with hundreds of physicians and several nationally recognized Health Systems to operate and grow Ambulatory Surgery Centers across 10 states. Prior to Amsurg, Brent served in a number of leadership positions for Benchmark Medical operating outpatient rehabilitation centers across Pennsylvania. He graduated from Rutgers University with Bachelor of Science he went on to earn a Master of Science in Physical Therapy from Arcadia University and Master of Business Administration from West Chester University.

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David Fox

David Fox

Executive Vice President, Development

Having spent more than 25 years in the life science and clinical research industry, David has a broad range of operational leadership experience ranging from clinical pharmacology through phase IV registration studies. He has spent time in executive positions at CROs and cofounded a leading patient recruitment company. In addition to a nursing degree from the University of Tennessee, David holds a bachelor’s degree in biology from Lipscomb University.

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Josh O’Rourke

Josh O’Rourke

Vice President, Engineering and Data Science

Josh has more than 17 years of experience in software engineering, systems integration, and data science. He has spent the last 12 years in healthcare working to lower costs and improve patient outcomes. During that time, he has served in several senior leadership roles, leading technical strategy and implementation for remote patient monitoring, chronic care management, population health, revenue cycle, and automation initiatives. Josh is a graduate of the Georgia Institute of Technology where he studied Artificial Intelligence and Machine Learning.

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