Our Staff

Mark Sawyer

Chief Executive Officer

Mark Sawyer joined Bayside Marin Treatment Center as chief executive officer in October 2021. His extensive experience supporting people who are struggling with behavioral health concerns, addictions, and co-occurring disorders, along with his successful history with Acadia Healthcare, makes Mark the ideal leader for Bayside Marin as the facility continues to expand its exceptional programming.

A stable, proven behavioral healthcare executive, Mark has more than ten years of progressive management experience leading large for-profit operations at various levels of care, including residential, partial hospitalization program (PHP), intensive outpatient program (IOP), outpatient, and extended care.
His demonstrated leadership abilities include team building, budget development and management, managing payers, increasing profitability, business development, facility licensure processes, and reorganization and stabilization.
Over the course of his career, he has gained a wealth of experience in physician recruitment, property management, accounting, acquisition, and business startup and purchasing. He earned a degree in accounting and business administration from Auburn University.

Mark first joined Acadia Healthcare in 2012 while serving in various roles at Twelve Oaks Recovery Center in Navarre, Florida. During his tenure at Twelve Oaks, Mark was promoted from controller and chief financial officer to director of operations and, ultimately, CEO. Mark worked collaboratively with the team at Twelve Oaks to improve client satisfaction and employee engagement, leading the facility to earn the Recovery Division Clinical Excellence Award in 2016.

Mark also served as interim CEO for a 54-bed Acadia facility in Boca Raton, Florida. During that time, he worked closely with the facility’s new leadership team to enhance the overall success and vitality of the facility.

Prior to joining Acadia, Mark spent four years in Jacksonville, Alabama, where he supervised the accounting department for a large healthcare organization as controller for an 89-bed medical hospital. During his tenure, he initiated a highly successful staff and physician retention system.
Mark also served as CEO of a large treatment center in Mississippi, where he successfully hired and retained talent who were passionate about delivering patient-centered care. Under his leadership, the facility consistently maintained the highest occupancy rate and lowest cost of operation among company facilities. He advanced clinical excellence at the facility by hiring a new clinical director and redeveloping the center’s clinical programs. In 2019, the residential campus successfully earned Joint Commission accreditation.

At Bayside Marin, we believe that when treating patients who are struggling with addictions and co-occurring disorders, we are doing much more than treating a diagnosis — we are treating people who each have unique needs, backgrounds, and belief systems. Mark’s extensive experience in healthcare administration has allowed him to seamlessly take on this leadership role at our treatment center.

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