Ronald Doncaster 
Vice President and Administrator
Ronald (Ron) Doncaster is the Vice President and Administrator of Lakeside Medical Center, the Health Care District of Palm Beach County’s rural teaching hospital in the Glades. In this role, he oversees operations at the 70-bed acute-care facility, supports the integration of enhanced services, supervises personnel, and provides strategic recommendations for innovative programming and future growth.
Doncaster brings several decades of healthcare leadership experience, including positions with Mass General Brigham and most recently as interim chief operating officer at Tampa General Hospital. His extensive background supports the growing partnership between Lakeside Medical Center and Tampa General.
Don
Jennifer Dorcé-Medard, DO 
Associate Chief Medical Officer
Jennifer Dorcé-Medard, DO is the Associate Chief Medical Officer at Lakeside Medical Center. She oversees medical staff operations and credentialing and drives strategic initiatives that enhance healthcare quality and patient safety. She is also the hospital’s Designated Institutional Official and a board-certified family physician. Dr. Medard is a healthcare executive with over 11 years of experience in clinical practice, medical administration, graduate medical education and healthcare leadership. Dr. Dorcé-Medard has dedicated her career to advancing evidence-based medicine, fostering a culture of collaboration among healthcare professionals, and implementing innovative healthcare solutions.
As Program Director, she led Lakeside’s Family Medicine Residency Program to ACGME accreditation in 2019. A strong advocate for patient-centered care, Dr. Dorcé-Medard works closely with physicians, nurses, and hospital administrators to develop policies and programs that prioritize patient safety, clinical excellence, and staff well-being.
Under their leadership, in 2022, Lakeside Medical Center was named the most racially inclusive hospital in the nation and was ranked among Florida’s top three hospitals for health equity and inclusivity in 2023 by the Lown Institute. In 2024, Lakeside Medical Center earned a Performance Leadership Award from The Chartis Center for Rural Health for excellence in patient outcomes.
Prior to joining Lakeside Medical Center, Dr. Dorcé-Medard served as a provider for the Health Care District’s community health centers. Dr. Dorcé-Medard earned her medical degree at Touro College of Osteopathic Medicine in New York, New York. She completed her residency training at Broward Health Medical Center in Fort Lauderdale, Florida, and earned a fellowship in Sports Medicine at Nova Southeastern University in Fort Lauderdale, Florida. She is an active member of the Palm Beach County Medical Society and a 2024 graduate of its Physician Leadership Academy.
Jacqueline Drahos, DNP
Associate Vice President of Nursing & Quality
Jacqueline Drahos, DNP is the Associate Vice President of Nursing & Quality for Lakeside Medical Center, bringing extensive experience in nursing, healthcare quality, and leadership
Drahos has a strong clinical background in ICU, telemetry, medical-surgical, vascular access, and more. Much of her career has been dedicated to managing and enhancing critical care services. Over the past seven years, she has led quality and performance improvement efforts, guiding multi-disciplinary teams across multiple hospital departments.
Drahos holds a Doctorate of Nursing Practice from PennWest University.
Medical Executive Committee
The Medical Executive Committee of Lakeside Medical Center has primary governance over the Medical Staff and serves a liaison between the Medical Staff, Hospital Administration and the Governing Board.
Responsibilities
- Act on behalf of the Lakeside Medical Center Medical Staff
- Adopt, amend and implement policies, Bylaws, Rules & Regulations of the Medical Staff
- Make recommendations to Governing Board relating to
- Structure
- Medical Staff Appointments and Reappointments
- Quality improvement processes and activities
- Review of quality indicators
- Provide leadership regarding patient safety
- Oversee and improve patient satisfaction
- Promote continuing medical education
Structure
- The Medical Executive Committee is comprised of elected active medical staff members, which include Department Chiefs and Service Chiefs
- Terms are two years and are based on a calendar year.
Jennifer Dorcé-Medard, DO
Associate Chief Medical Officer
Ishan Gunawardene, MD
Chief of Staff
Manuel Casanova, MD
Chief of Staff Elect
Daniel Grenier, MD
Treasurer/Emergency Department Medical Director
Bryan Dawkins, MD
Hospitalist Medical Director
Thomas Marino, MD
Radiology Medical Director
Napoleon Cieza, MD
Surgery Medical Director
Thomas Bolton, MD
Laboratory Medical Director
Juan Santiago, MD
Anesthesiology Medical Director
Mario Rueda, MD
Critical Care Medical Director