Miller succeeds Charles Gressle, who has been appointed president of HCA Healthcare’s new Ambulatory Operations Group
August 25, 2026 – HCA Healthcare today announced that Dan Miller has been named president of the East Florida Division, succeeding Charles Gressle, who has been appointed president of HCA Healthcare’s newly formed Ambulatory Operations Group.
Miller currently serves as president and chief executive officer of Methodist Healthcare System, a 50/50 partnership between the Methodist Healthcare Ministries and HCA Healthcare, in San Antonio, Texas, where he leads one of the region’s largest healthcare systems. He brings 20 years of healthcare leadership experience to the East Florida Division where he will oversee 14 hospitals, 12 freestanding emergency rooms, 65 urgent care clinics and more than 100 physician practices. Miller has a strong track record of expanding clinical services, driving operational performance and advancing quality care.
“Dan is an accomplished healthcare leader who has demonstrated an ability to build strong teams, expand access to care and deliver exceptional results,” said Richard Hammett, president, HCA Healthcare Atlantic Group. “His experience leading complex healthcare organizations and his commitment to physicians, colleagues and patients make him an excellent choice to lead our East Florida Division. We look forward to the impact he will have as we continue to grow and serve communities across South Florida.”
Miller was appointed president of Methodist Healthcare in 2023. Under his leadership, the division underwent the largest expansion in its history, opened new hospitals and expanded access to inpatient, rehabilitation and outpatient services and launched a graduate medical education program. Additionally, annual patient encounters grew from
1.6 million in 2019 to 2.6 million in 2025.
Before assuming leadership of Methodist Healthcare, Miller served as chief executive officer of Methodist Hospital and Methodist Children’s Hospital. During his tenure,
Methodist Hospital expanded key service lines and became the largest hospital in Texas for admissions. The hospital also earned national recognition for clinical excellence and quality outcomes, including being named to the Fortune/Merative 100 Top Hospitals list and receiving recognition from U.S. News & World Report as a Best Regional Hospital.
Earlier in his career, Miller served as chief executive officer of HCA HealthONE Aurora and chief operating officer of HCA HealthONE Swedish, both in Colorado.
“I am honored to have the opportunity to lead HCA Healthcare’s East Florida Division and join the exceptional colleagues, physicians and leaders who serve patients throughout the area,” said Miller. “I look forward to building on the division’s strong foundation and Excellence ALWAYS culture, supporting our teams and continuing to expand access to high-quality care for the many communities we serve.”
Miller earned his bachelor’s degree from Vanderbilt University and holds a master’s degree in health administration from Virginia Commonwealth University.
Gressle, who has served as president of HCA Healthcare’s East Florida Division, will become president of the company’s new Ambulatory Operations Group effective Sept. 1.
Gressle will have responsibility for HCA Healthcare’s Physician Services Group, including Urgent Care operations and Physician Practice operations, as well as the company’s Surgery Ventures Group and other corporate service line and support functions. The Ambulatory Operations Group encompasses more than 2,700 facilities and clinics and is designed to strengthen integration across HCA Healthcare’s growing ambulatory network and enhance coordination in support of patients, physicians and caregivers.
“Charles is a proven leader with deep operational experience and a strong track record of building high-performing teams,” said Sam Hazen, chief executive officer of HCA Healthcare. “As we build out our networks to meet the growing demand for our services, this new structure allows for better network integration with more service line focus, and most importantly, it makes it easier for our patients to navigate our systems.”
About HCA Florida Healthcare
HCA Florida Healthcare, a part of HCA Healthcare, is one of Florida’s leading healthcare networks. Its 11,200 physicians and 80,000 colleagues work together to deliver evidence-based, collaborative care through nearly 12.8 million patient encounters annually. With more than 670 connected care sites, including hospitals, physician practices, urgent care centers and freestanding emergency rooms—across the state, HCA Florida Healthcare helps expand access to the specialized care patients need. HCA Florida Healthcare hospitals are annually recognized for excellence in patient experience and clinical outcomes, including three facilities ranked in the top 2% nationally for overall clinical excellence. A leader in healthcare education, HCA Florida Healthcare supports the next generation of healthcare workers through its 153 graduate medical education programs across 29 hospitals. In 2025, the network provided more than $1.1 billion in uncompensated care and contributed more than $3.5 million to community organizations across the state. Visit HCAFloridaHealthcare.com
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