naviHealth CEO and leadership

Joined naviHealth as CMO in May 2012 after serving as CMO for HealthSpring of Alabama, Mississippi and Northern Florida from 2007 until 2012.

As Chief Information Officer, Greg Hamrick is responsible for the technology strategy and delivery for naviHealth. Greg has held health care technology leadership positions for over 20 years including dialysis (Fresenius Medical Care), pharmacy (CHD Meridian Healthcare) and financial services and investments (ING). Spending the last 10 years at naviHealth, Greg helped with the original buildout and launch of naviHealth tech. When Greg is not at work, he likes to get out of the city and work on the family farm.

As Chief of Staff, John Williamson is responsible for supporting naviHealth’s CEO and coordinating enterprise-level initiatives and special projects across executive leadership functions. John has spent the majority of his career focused on improving health care coordination and outcomes in a variety of roles including business development, strategy and operations. Before joining naviHealth, John worked on the development team for Surgical Care Affiliates. When he is not at work, John loves spending time outdoors with family and friends.

As Chief Compliance and Privacy Officer at naviHealth, LeToia Crozier takes pride in leading and educating the team on the regulatory, operational, and financial impacts of compliance and privacy programs. Crozier has spent nearly her whole career practicing compliance and law within the healthcare industry, including a senior leadership role at Change Healthcare as chief compliance and ethics officer. Throughout her career, she has been an active member of her community and serves on the board of the Youth Community Action Program. When she is not at work, Crozier also enjoys spending time with her family cooking, hiking, dancing, and traveling.

As Chief Financial Officer at naviHealth, Zack Mulligan is responsible for overseeing and managing the overall financial performance of the business and for helping set strategic financial priorities. Prior to joining naviHealth, Zack worked in health care investing at Pamlico Capital and health care investment banking at Wells Fargo Securities. When not at work, Zack loves spending time with his family, taking advantage of Nashville’s dining scene and attempting to improve his home cooking abilities.

Joined naviHealth as CMO in May 2012 after serving as CMO for HealthSpring of Alabama, Mississippi and Northern Florida from 2007 until 2012.

As Chief Compliance and Privacy Officer at naviHealth, LeToia Crozier takes pride in leading and educating the team on the regulatory, operational, and financial impacts of compliance and privacy programs. Crozier has spent nearly her whole career practicing compliance and law within the healthcare industry, including a senior leadership role at Change Healthcare as chief compliance and ethics officer. Throughout her career, she has been an active member of her community and serves on the board of the Youth Community Action Program. When she is not at work, Crozier also enjoys spending time with her family cooking, hiking, dancing, and traveling.