Hospital Leadership

Paul King

Paul King - Mott Executive Director

Executive Director

Paul A. King joined University of Michigan’s C.S. Mott Children’s Hospital and Von Voigtlander Women’s Hospital as Executive Director in 2013. Prior to his joining the U-M team, Paul had garnered nearly 30 years of experience as a health care executive, most recently as the chief executive officer of Children’s Hospital Los Angeles Medical Group.

King has devoted his career to health care because he enjoys the overall mission of healing and discovering ways to better fight and treat disease, especially for children. His strong leadership record includes previously serving as vice president for clinical programs and professional services at Children's Hospital Los Angeles and in other senior management roles at the Mayo Clinic and the Samaritan Physicians Center.

His strong leadership skills guide the strategic growth of the University of Michigan’s children’s and women’s programs and services. King is responsible for the growth and direction of Mott Children’s Hospital’s network of partnerships for children’s care throughout the State of Michigan.

He is currently on the Board of Make-A-Wish Michigan as well as the Board of Trustees for the Children’s Hospital Association.

King holds a bachelor's degree in Business Administration and Economics from the University of Nebraska, at Lincoln; and a master's degree in Healthcare Administration from the University of Iowa, Iowa City. King also is certified as a Medical Practice Executive.


Valerie P. Opipari, M.D.

Chair, Department of Pediatrics and Communicable Diseases

Valerie P. Opipari, M.D., is the Ravitz Foundation Professor of Pediatrics and Chairman of the Department of Pediatrics and Communicable Diseases at the University of Michigan Medical School, Physician in Chief of the C.S. Mott Children’s Hospital, University of Michigan Health System in Ann Arbor, Michigan and a pediatric hematologist-oncologist.

Dr. Opipari, a native of Canada, received her B.A from McGill University in Montreal, Quebec, completed a B.Sc. program at the University of Toronto in Toronto, Ontario and obtained her M.D. from McMaster University in Hamilton, Ontario, Canada. Dr. Opipari completed her pediatric internship and residency from McMaster University in Hamilton, Ontario and went on to complete a fellowship in pediatric hematology/oncology at the University of Michigan in 1990. In that same year, Dr. Opipari joined the University of Michigan faculty. Dr. Opipari's research focuses almost exclusively on the pediatric solid tumor, neuroblastoma. She is specifically interested in mechanisms of chemotherapy and radiation resistance as well as studies on the control of neuroblastoma invasion and metastases. She is a member of the National Cancer Coalition and has participated on the Advisory Committee for the development of the National Comprehensive Cancer Network guidelines for the clinical treatment of neuroblastoma.

Dr. Opipari has published over 80 manuscripts and chapters. She serves as the Vice-Chair for the St. Jude Children’s Research Hospital Scientific Advisory Board and has been recognized by awards including the A. Alfred Taubman Medical Research Institute Scholar Award, numerous “Top Resident Teacher” awards. Dr. Opipari is an elected Fellow of the American Association for the Advancement of Sciences (AAAS).


John M. Park, M.D.

Associate Professor, Pediatric Urology

John M. Park, M.D., was elected Surgeon-in-Chief at C.S. Mott Children’s Hospital in 2011.He is also the Cheng-Yang Chang Professor in the division of Pediatric Urology.Dr. Park graduated from the University of Michigan Medical School in 1990 and completed his urology residency training at the University of Michigan Medical Center in 1995. In 1997, Dr. Park went to the Harvard Children's Hospital in Boston to complete his fellowship training in pediatric urology. He returned to the University of Michigan in 1999 as an Assistant Professor to join the Division of Pediatric Urology and assumed the role of Director of Pediatric Urology in 2001.

Dr. Park has had a long-standing interest in improving the care of children born with disorders of sex development (DSD), and he played an integral role in establishing the University of Michigan Clinical Center for DSD. He has also taken a delight in providing charity care to children from around the world with complex urological problems. Dr. Park has contributed his scholarly work at numerous international, national, and regional meetings and publications. His research excellence has been recognized in the form of numerous grants and awards from the National Institute of Health (NIH), Urodynamic Society, American Academy of Pediatrics, Society for Basic Urological Research, and the American Urological Association.

As the surgeon-in-Chief, Dr. Park is responsible for organizing the surgical services and providing optimal care of patients in our 16 state-of-the-art operating and procedure rooms.


Chris Dickinson

Chief Medical Officer

Chris J. Dickinson, M.D. attended Wayne State University in Detroit, Michigan where he received a B.A. in Chemistry, followed by his M.D. degree in 1981. He then completed a General Pediatric Residency at Rainbow Babies and Children’s Hospital in Cleveland, Ohio. In 1984, he began a Pediatric Gastroenterology Fellowship Program at the University of Michigan in Ann Arbor. Dr. Dickinson became a faculty member in the Department of Pediatrics in July 1986 and has continued to serve in the division of Pediatric Gastroenterology as the chief of the division from July 1999 through June 2011.

Dr. Dickinson served as an Associate Chief of Staff for the Office of Clinical Affairs beginning June 2003 and concluding in July 2011. He was appointed as the Pediatric Associate Chief Medical Officer (PACMO) for the University of Michigan and C.S. Mott Children’s and Women’s Hospital, on July 1st, 2011, and also served as Interim Executive Director of C.S. Mott Children’s Hospital and Von Voigtlander Women’s Hospital from April 2012 through August 2013.

Dr. Dickinson has been deeply involved in several safety and quality initiatives throughout the entire health system since becoming an Associate Chief. In his role as Chief Medical Officer, he focuses on achieving new safety and quality standards in C.S. Mott Children’s Hospital and Von Voigtlander Women’s Hospital.


Loree Collett

Loree Collett - Mott Associate Hospital Director

Associate Hospital Director

Loree Collett RN, BSN, MSBA is the Associate Hospital Director for the C.S. Mott Children’s and Von Voigtlander Women’s Hospitals.  In this role she is the lead for all Children’s and Women’s Services and provides strategic direction, administrative and operational leadership to multiple services, functions and hospitals.

Loree has 25 years of progressive leadership experience. She came to the C.S. Mott Children’s Hospital at the University of Michigan Health System in 1987 and began her pediatric nursing career in the Pediatric Intensive Care Unit.  Her clinical experience includes the Pediatric Intensive Care Unit, Pediatric Post Anesthesia Care Unit and Pediatric Operating Rooms where she was the Clinical Nurse Manager.  Loree served as interim Director of Nursing for Pediatrics, Perinatal and Psychiatry services in 2003 and joined the Children’s and Women’s Replacement Hospital Project as an Associate Hospital Administrator in 2004.   In this role, Loree led the design, operational and activation plans for the $754 million Children’s and Women’s Hospital Replacement Project, which opened on December 4, 2011.

Loree received her Bachelor of Science in Nursing degree from the University of Toledo and her Masters in Science in Business from Madonna University. Loree is a current member of Kappa Gamma Kappa and Delta Mu business honor society.