Our Leadership

Our executive management team and board lead us in our mission to improve the quality of your health at every stage of life. Our board committees ensure that Premier Health and our member hospitals are governed and managed with the highest standards of responsibility, ethics, and integrity.

If you are a member of the media with further questions about any member of our Premier Health executive management team and/or board, we welcome you to view our media contacts.

Board Leadership

We’re grateful for the community leaders who volunteer their time and talent as our board leadership. They guide Premier Health in creating a healthier community.

Board Committees

The individuals who make up our board committees help us maintain the strictest operating standards.

Executive Management

Our executive management team helps us provide you with comprehensive health services and inspires us to find new ways to improve, innovate, and grow.

Mary H. Boosalis

President and Chief Executive Officer, Premier Health

Mary H. Boosalis is the president and CEO of Premier Health. Joining the health system in 1986, Mary has served in progressively expanded leadership roles throughout her career.

Mary has led many innovative initiatives during her career, resulting in systemic and positive changes to health care in the entire region. Some examples include developing the campus visional strategy and execution for Miami Valley Hospital South, which continues to expand today and has garnered the largest annual market share growth for Premier Health; completion of the new vision for Miami Valley Hospital main campus and construction of the Heart and Vascular Tower, earning many design awards for positive delivery of care to patients; working with the City of Dayton and other business partners to improve neighborhoods around Miami Valley Hospital’s main campus; and serving as executive sponsor for the health system in developing and launching the Premier Health-Wright State University Neurosciences Research Institute, strengthening critical services to patients and attracting highly sought-after physicians in this field of medicine.

Mary earned a bachelor’s degree in nursing, magna cum laude, from California State University at Fresno and a master’s degree in health services administration, magna cum laude, from Arizona State University.

Barbara A. Johnson

Executive Vice President and Chief Operating Officer

Barbara A. Johnson is executive vice president and chief operating officer for Premier Health, a role she has held since August 2019. Barbara has been with Premier Health since 2003.

Prior to her current role, Barbara served as system vice president and chief human resources officer for the health system. She previously served as executive vice president and chief operating officer for Miami Valley Hospital, and as vice president of operations at both Miami Valley Hospital and Good Samaritan Hospital (closed in 2018).

Barbara is a member of the American College of Healthcare Executives, American Hospital Association, Ohio Hospital Association, National Association of Health Services Executives, the Society for Human Resources Management, and a member of the American Society for Health Care Human Resources Administration.

She is currently chair of the Ohio Diversity Council State Board of Directors and chair, The National Conference for Community and Justice of Greater Dayton (NCCJ). Barbara also sits on the Governor's Executive Workforce Board. She is a member of the Dayton Performing Arts Alliance Advisory Group, The American Heart Society “Go Red for Women,” the Greater Dayton 5K Heart Walk/Run “Thousandaire Club,” and a member of the affiliate chapter of A Special Wish Foundation, Inc. Advisory Board.

Barbara holds a Bachelor of Arts degree in English from Case Western Reserve University in Cleveland, Ohio.

Marc Belcastro, DO

System Chief Medical Officer, Premier Health

Marc Belcastro, DO, is the system chief medical officer at Premier Health. He is board-certified in pediatrics and neonatology and received his Doctor of Osteopathic Medicine degree from Ohio University Heritage College of Osteopathic Medicine. Dr. Belcastro became the system chief medical officer at Premier Health in 2020.

Dr. Belcastro most recently served as the chief medical officer of Premier Health’s southern region, which consists of Miami Valley Hospital and Atrium Medical Center. He also served as Miami Valley Hospital’s medical staff president from 2014 to 2016. Dr. Belcastro has been appointed to academic roles as an assistant and associate clinical professor at Wright State University’s Boonshoft School of Medicine and Ohio University’s Heritage College of Osteopathic Medicine.

Dr. Belcastro is active in the community and a board member of Promise to Hope for Opiate Addicted Mothers, Steering Committee for Infant Mortality in Montgomery County, March of Dimes, and Remen Institute for the Study of Health and Illness. He also serves as a board member and medical director of Brigid’s Path, a facility that provides treatment for opiate dependent infants.

Keith Bricking, MD

President, Atrium Medical Center

Keith Bricking, MD, MBA, FAAEM, became the first physician to lead a Premier Health hospital with his appointment as president of Atrium Medical Center in January 2019.

In addition to his medical training and experience as an emergency medicine physician, Dr. Bricking has served in many leadership roles, including president of the Miami Valley Hospital medical staff and medical director of the Miami Valley Hospital Department of Emergency Medicine. He has an unwavering commitment to quality and compassionate care and values teamwork and collaboration.

Dr. Bricking earned a Masters of Business Administration, Healthcare Concentration, from Wright State University, Raj Soin College of Business; completed his residency in Emergency Medicine at Indiana University School of Medicine; earned a Doctor of Medicine degree from the University of Kentucky College of Medicine; and a Bachelor of Science in Biology from Northern Kentucky University. 

Eloise Broner

Chief of Shared Services, Premier Health

Eloise Broner serves as the chief of shared services for Premier Health, a position she assumed in July 2018. With more than 25 years of health care leadership experience, she has held more than one leadership position at Premier Health. Prior to her current role, she was the president and CEO of Good Samaritan Hospital (closed in 2018) since May 2012. She previously served as chief operating officer at the hospital. She was the chief purchasing officer for the health system and for 17 years was the vice president of operations at Miami Valley Hospital.

Eloise received her bachelor's degree from Indiana University and her master's degree in public health from Meharry Medical College in Nashville, Tennessee. She is a fellow of the American College of Healthcare Executives.

Eloise has served on numerous community and county boards and is currently a member of the City-Wide Board and the Montgomery County Human Service Levy Council. She is a recipient of the DBJ Power 50 Award, has received Dayton's Top 10 Women and Dayton's Top 10 African-American Women awards, and was a finalist for the Stevie Awards for Women in Business.

Lainie Dean

Chief of Strategy and Business Development, Premier Health

Lainie Dean is the chief strategy and business development officer for Premier Health. She re-joined the health system in 2019. In this role, Lainie’s responsibilities include system strategy, joint ventures, partnerships and collaborations, real estate strategy, provider alignment strategies, service lines, value strategy, and strategic market development.

Lainie has more than 25 years of health care experience in hospital and medical group strategy, operations, financial management, strategic planning, physician recruitment, and physician practice development. Lainie began her career at Good Samaritan Hospital as an administrative resident.

Lainie serves as a Board of Director and Board Secretary for OneFifteen Recovery and at Chaminade Julienne High School as a Board Trustee.  She is also an Advisory Board member to PQ Systems in Dayton and Aquabiliti in Nashville.

Lainie holds a master's degree in hospital and health administration from Xavier University and a bachelor’s degree in business administration from the University of Cincinnati.

Diane Ewing

Chief Liaison to the President and CEO; Vice President, Government Affairs, Premier Health

Diane Ewing is chief liaison to the president and CEO of Premier Health, and vice president of government affairs. Diane joined the organization in 2008 and has 30 years of experience in health care marketing, public relations, internal communications, and community relations.

Diane is a member of the Dayton Rotary Club and has served on numerous nonprofit boards. She serves on the boards of the Downtown Dayton Partnership; ThinkTV; Darke County Chamber Board; and the Coalition for a Healthy Darke County Board. She is a long-time member of the Society for Healthcare Strategy & Market Development, serving on various national committees over the years.

Diane earned a bachelor’s degree in English from Maryville University, followed by graduate studies at Washington University, both in St. Louis.

Craig Ganger

System Vice President; Chief Financial Officer, Premier Health

Craig Ganger is the system chief financial officer for Premier Health, a position he assumed in January 2021. Craig joined Premier Health in 2004 and has advanced with increasing responsibility as director of patient financial services, director of managed care and decision support/managed care, and the chief financial officer for Premier Physician Network. 

Craig received his master’s in business administration from the Fisher College of Business at The Ohio State University and his undergraduate degree in finance from the University of Dayton. Craig is a fellow of the Healthcare Financial Management Association (HMFA) and is a past president of the Southwestern Ohio chapter of HFMA. 

Kevin Harlan

President, Upper Valley Medical Center

Kevin Harlan became the president of Upper Valley Medical Center in August 2020. Kevin’s health care career spans more than three decades. Throughout his career, Kevin has led numerous growth efforts and improvement initiatives aimed at providing high quality health care, improving the patient experience, and enhancing outreach and education programs to the communities in which he serves. 

Kevin comes to Premier Health with an associate degree in Radiology from Sinclair Community College, a bachelor’s degree in Business and Natural Sciences from Wright State University, and a master’s degree in Business Administration from Central Michigan University.  He is a member of numerous professional health care and community organizations including the Ohio Hospital Association and the Greater Dayton Area Hospital Association.  

Kathy Harper

Chief Marketing and Communications Officer, Premier Health

A results-driven leader with more than 25 years of experience in marketing and communications, product management, and development and strategic planning, Kathy currently serves as Premier Health's chief marketing and communications officer, a position that she has held since November 2018.

Immediately prior to this role, Kathy was vice president of operations at Good Samaritan North Health Center (now Miami Valley Hospital North) for two and a half years. She joined Good Samaritan Hospital in 2011 and has held various leadership roles within Premier Health, including director of marketing and communications for Good Samaritan Hospital and system director of service line marketing.

Before joining Premier Health, Kathy spent 17 years in leadership for Standard Register and Union Bank in the Los Angeles area, where she held positions of increasing responsibility, including vice president and senior product manager. She is a member of the Society for Healthcare Strategy & Market Development and the American College of Healthcare Executives. She currently serves as board chair for the Northmont Area Chamber of Commerce and participates on the Business Advisory Council for Northmont City Schools. Kathy is a graduate of the University of Dayton.

Stacey Lawson

Chief Human Resources Officer, Premier Health

Stacey Lawson joined Premier Health in 1998 as manager of diversity and has held progressively responsible roles in her tenure with the health system. Her human resources experience includes previous leadership positions at Miami Valley Hospital and Good Samaritan Hospital, and most recently served as a system vice president. Stacey is known for her abilities as an innovator in strategic thinking and achieving measurable outcomes. Stacey serves on various community boards and has been recognized as a Woman of Influence by the Dayton YWCA, a Dayton Business Journal 40 Under 40 Lifetime inductee, and a Top 25 Woman of Impact by Women in Business.

Peggy Mark, Ph.D.

System Vice President and Chief Nursing Officer, Premier Health

Peggy Mark, Ph.D., is the chief nursing officer at Premier Health. Previously, Peggy served as chief learning officer for Premier Health, overseeing the organization's Learning Institute. Her responsibilities have spanned leadership development through clinical development, patient and family education, technical education, and library services. She has been very active in developing strong relationships with our many academic partners and represents Premier Health on various community boards.

Peggy began her nursing career at Good Samaritan Hospital (closed in 2018) and served in various nursing and leadership roles. Peggy received her Bachelor of Science in nursing from Wright State University, her Master of Business Administration from the University of Dayton and her Ph.D. in leadership and change from Antioch University. Peggy opened the Center for Nursing Excellence at Good Samaritan Hospital and was later promoted to the role of administrator of the former Good Samaritan North Health Center, now Miami Valley Hospital North.

K. Duane Martin

System Vice President, Corporate Compliance & Enterprise Risk Management, Premier Health

Duane Martin joined Premier Health in 2004 as a staff attorney for Good Samaritan Hospital (closed in 2018). He went on to serve as assistant general counsel for Premier Health and then director of legal services for Upper Valley Medical Center. In 2012, Duane transitioned into the role of corporate compliance officer for Premier Health.

Duane earned his bachelor’s degree from Ithaca College, his Juris Doctorate from the University of Dayton School of Law, and his Master of Business Administration from Indiana Wesleyan University. He is also certified in health care compliance and research compliance.

Diane Pleiman, FACHE, MBA

President, Premier Physician Network

Diane Pleiman, FACHE, MBA, is the president of Premier Physician Network. Diane has been a leader within Premier Health for more than 20 years. She has direct financial and operational responsibility for one of Southwest Ohio’s largest networks of primary care and specialty medical practices, where more than 600 physicians and advanced practice providers care for patients in more than 125 locations.

Prior to this current position, Diane was the vice president and chief operating officer of Upper Valley Medical Center. She has extensive operational and strategic experience, having served as the system vice president for the neurosciences and oncology service line institutes, as well as vice president of operations at Miami Valley Hospital.

Diane received her Master of Business Administration from Wright State University. She is also a Fellow of the American College of Healthcare Executives and serves on a variety of local boards.

Joann Ringer

Chief Administrative Officer, Premier Health

Joann Ringer became the chief administrative officer at Premier Health in January 2021. Joann’s health care career spans nearly three decades. She has been with the Premier Health system since 1998, where Joann has served in the roles of Miami Valley Hospital South’s administrator, vice president, chief operating officer, and most recently, president.

Joann has been named among Dayton Daily News’ Top Ten Women, Dayton Business Journal’s Bizwomen Power 50 and Healthcare Executive of the Year, and United Way of Dayton’s Leadership Circle.

Joann is a member of the South Dayton Metro Chamber of Commerce, The Junior League of Dayton, The Ohio State University Alumni Association, and Kappa Kappa Gamma Fraternity Alumnae. She received her bachelor’s degree in business administration from The Ohio State University and a Master of Science in management from Indiana Wesleyan University.

Michael Uhl

President, Miami Valley Hospital

Mike Uhl, MSN, MBA, RN, CEN, FACHE, is the president of Miami Valley Hospital. Mike is a registered nurse with more than 20 years of health care experience in both acute hospitals and health care system environments. Throughout his career, Mike has worked in and consulted with health care organizations across the country on strategic financial and operational enhancements to improve both clinical and financial outcomes. Mike’s primary areas of expertise include innovative strategy development, hospital operational and financial improvements, process redesign, predictive modeling, and Lean Six Sigma applications in the health care setting.

Mike holds a Master of Business in health care administration from the University of Phoenix, a Master of Science in nursing administration from Xavier University, and a Bachelor of Science in nursing from the University of Cincinnati.

Geoff Walker

Chief Legal Officer, Premier Health

Geoff Walker is chief legal officer for Premier Health. Geoff has practiced law for 32 years, 26 of which have been with Premier Health, beginning in 1992. Prior to his current position, Geoff served as counsel for Miami Valley Hospital and Good Samaritan Hospital (closed in 2018), and later as counsel for Premier Physician Network and system service lines.

Geoff graduated from Cedarville University in 1982 and the University of Dayton School of Law in 1986. Prior to working with Premier Health, Geoff practiced as a litigator in one of Dayton’s local law firms. He has served on numerous community boards over the years, including serving as president of the Greater Dayton Volunteer Lawyers Project, and continues to serve local charitable agencies by providing free legal assistance to their boards.

Explore Premier Health

Discover more about what’s going on at Premier Health and join us in building healthier communities in Southwest Ohio. Learn more about working at Premier Health, becoming a volunteer, and making a gift to support our mission.