Gwen M. MacKenzie, President and Chief Executive Officer
Gwen M. MacKenzie is President and CEO of Sarasota Memorial Health Care System, a regional medical center consisting of an 806-bed hospital, physician practices and a network of specialized medical campuses and clinics that include a nursing home and rehabilitation center, home health, psychiatric hospital, walk-in medical centers and outpatient care centers that offer the latest diagnostic and imaging services available.

Among its many achievements, Sarasota Memorial has been repeatedly listed in U.S. News and World Report's “America’s 50 Best Hospitals” issue. Sarasota Memorial also is the only hospital in the region with “Magnet” status – the nation’s highest honor for excellence in nursing. A number of other quality awards continually recognize Sarasota Memorial as a national benchmark for clinical excellence, specialty care and patient safety.

Since joining Sarasota Memorial in May 2005, MacKenzie has successfully opened a number of new outpatient facilities – including the Institute for Advanced Medicine neuroscience specialty campus – while streamlining internal operations. She shepherded the hospital through an ER initiative that resulted in a 30-minute wait time guarantee for patients and eliminated ambulance diversions. Those kinds of operational improvements, coupled with a strong focus on growth opportunities and cost-saving measures, has helped Sarasota Memorial turn around a longstanding operating loss despite significant increases in bad debt expense.

Trained as an oncology nurse, MacKenzie worked for 25 years at the nine-hospital Detroit Medical Center, the largest health care provider in southeast Michigan. Starting as an advanced practice nurse practitioner, she worked her way from bedside care and clinical management to executive vice president and chief operating officer at DMC. She was also President of a number of the DMC hospitals and for a time served as interim Chief Executive Officer of the system. A native of Michigan, MacKenzie attended the University of Michigan receiving a Bachelor of Science and a Master’s in health services administration. She also received a Master’s from the University of California, Los Angeles.

David Verinder, Chief Operating Officer
In July, 2010, David Verinder was named Sarasota Memorial’s Chief Operating Officer. He oversees the health system’s Ambulatory Services, Radiology Department, Laboratory Services, Supply Chain Management, Biomedical Engineering, Hospitality Services, Physician Services, Inc.’s Operations and the Physician Hospital Organization. He also is responsible for the organization’s Architecture and Construction projects. Verinder joined Sarasota Memorial in 2006 as Chief Financial Officer. During his tenure with the health system, Verinder successfully instituted significant financial and operational improvements, focusing on strategic growth opportunities, disciplined expense controls and improved financial results.

Verinder came to Sarasota Memorial from Scott & White Memorial Hospital & Clinic in Temple, Texas, where he served as Chief Financial Officer for Hospital and Clinic operations. During his time with Scott & White, he also served as chief operating officer of the system’s four hospitals. Prior to that, Verinder was Chief Financial Officer for the Florida division of Iasis Healthcare. He also served as CFO and interim CEO of Lane Memorial Hospital in Baton Rouge, La. Verinder received his Master of Business Administration degree from Auburn University and his Bachelor of Science degree from Louisiana State University.

Denis Baker, Chief Information Officer
Denis Baker was appointed Sarasota Memorial's Vice President and Chief Information Officer in February of 2000. Previously, he served five years as the health care system's director of Information Services. Under his administration, Sarasota Memorial undertook system-wide improvements, including upgrades to become Y2K compliant and conversion to electronic medical records, among other initiatives. Before coming to Sarasota Memorial, he served as the Vice president-Chief Information Officer for The Sisters of Mercy-Cincinnati Region for four years. He holds a master's degree from Marylhurst College in Oregon.

Jan Mauck, RN, CNOR, Chief Nursing Officer
Jan Mauck joined Sarasota Memorial Health Care System in 1975 as an RN on the Orthopedic Nursing Unit. In 1982 she became the Director of Surgical Services and, in 1999, she was promoted to Executive Director of the Diagnostic & Procedural Division. Prior to her appointment as CNO in 2003, Jan was Vice President of Heart and Vascular Services. Today, she is responsible for consistency in nursing practice and policy, as well as the development, implementation, monitoring and evaluation of programs, budgets and services to assure quality and cost-effective care along the continuum. She oversees a nursing organization of over 1,200 staff positions. Mauck received a Bachelor of Science in Nursing from Murray State University in 1975 and a Master of Science in Health Services Administration from Saint Francis College in 1997.

William Woeltjen, Interim Chief Financial Officer
William Woeltjen was named interim Chief Financial Officer in July, 2010. Previously, he served as Treasurer for the health system. Before joining Sarasota Memorial’s Finance Department in 2007, Woeltjen, a Certified Public Accountant, served as corporate chief financial officer for University Community Health in Tampa.

Parlane Reid, Ph.D., M.D., Chief Medical Officer
Parlane Reid, Ph.D., M.D. was appointed Sarasota Memorial Health Care System’s Chief Medical Officer in January of 2007. Previously, he served as Medical Director for the Bayside Center for Behavioral Health since 1997 and as Chief of Staff for the Health Care System in 2005. He also serves as an Associate Clinical Professor in Psychiatry for the University of Florida. In addition to his lengthy physician leadership and academic experience, Dr. Reid is a diplomate of the American Board of Psychiatry and Neurology and has 25 years of private practice experience as a psychiatrist. As Vice President and Chief Medical Officer, Dr. Reid works with our more than 750 medical staff members as well as employees and administration to ensure the highest quality of medical practice.