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Leadership

Suzanne Koesel – Regional Chief Executive Officer Suzanne Koesel – Regional Chief Executive Officer

Suzanne Koesel serves as Regional CEO in Indiana. She oversees more than 60 facilities in 17 counties throughout south and central Indiana and nearly 900 employees serving nearly 30,000 Hoosiers annually, and an annual revenue of over $52 million. She is responsible for the leadership and operational oversight of Centerstone’s clinical divisions and specialized services as well as strategic business development and fiscal accountability in Indiana.

Under her leadership, Centerstone has continued to expand operations in Indiana and has developed numerous state- and nationally-recognized services, including substance abuse treatment, peer support services, employment services and specialized re-entry services for adults.

She is a licensed clinical social worker and received a bachelor’s degree in social work from Indiana University in Bloomington and a master’s degree in social work from Washington University in St. Louis.

She is a member of the Mental Health America of Indiana Board of Directors. She is an active member of her community, serving on a variety of nonprofit boards and local human services committees. She has been with Centerstone since 1996.


Shirley Arney, MBA – Regional Chief Administrative Officer Shirley Arney, MBA – Regional Chief Administrative Officer

Shirley Arney is Regional Chief Administrative Officer for clinic, administrative and support services in Indiana. As CAO, she manages all areas of operations.

Shirley has more than 25 years of experience in mental health management with expertise in team building, negotiation, data analysis and management, improving clinical practice and bringing new work groups together to develop clinical programs.

Shirley earned a bachelor’s degree, Magna Cum Laude, in 1993 and an MBA in 1996, both from Indiana Wesleyan University. She has been with Centerstone since 1977.


Robb Backmeyer, MSW, MBA – Regional Chief Operating Officer Robb Backmeyer, MSW, MBA – Regional Chief Operating Officer

Robb Backmeyer serves as Regional Chief Operating Officer in Indiana. He is responsible for adult services, including community support services, assertive community treatment (ACT) and residential services; child and family services, including SOC and therapeutic foster care; grants; and employment services.

Backmeyer graduated from Wabash University with a bachelor’s degree in philosophy and history, and received a master’s in social work from Indiana University-Purdue University-Indianapolis (IUPUI) and an MBA from Indiana Wesleyan University.

He serves on the Board of Directors for Affiliated Service Providers of Indiana (ASPIN) and the Board for Communities in Schools, Wayne County, and the Board for Community Corrections, Wayne County.

He has been with Centerstone for 20 years and has worked with child and family services, quality improvement, utilization management and older adult services.


Bob Siegmann – Senior Vice President of Integrated Health Services Bob Siegmann – Senior Vice President of Integrated Health Services

Bob Siegmann is Senior Vice President of Integrated Health Services in Indiana. In this role, he manages psychiatric and nursing staff, a variety of integrated health services and Red Oak Industries.

At different points in his career, Seigmann has managed most all community mental health center services. He directed the Solutions Training Institute for many years, sponsoring more than 85 events with nationally known speakers.

Siegmann received a BA in social work from Wabash College and an MSW and an MBA from Indiana University. He is a certified Lean Six Sigma black belt. He has been with Centerstone since 1974.


Linda Grove-Paul – Vice President of Adult Services Linda Grove-Paul – Vice President of Adult Services

Linda Grove-Paul is Vice-President of Adult Services in Indiana. SHe is responsible for all programming related to adults including addiction, forensic, supportive housing and several state and federal grants.

She attended Indiana University where she earned an MA in public administration, Finance, as well as her MSW. She is a member of NASW and the American Correctional Association.


Jenny Harrison, LCSW – Vice President of Crisis, Access, and Engagement Services Jenny Harrison, LCSW – Vice President of Crisis, Access, and Engagement Services

Jenny Harrison is Vice President of Crisis, Access, and Engagement Services in Indiana. She is dedicated to program development and education surrounding suicide prevention, both for her staff and for the communities they serve.

She has more than 25 years of experience in behavioral health, serving in a broad range of roles in service delivery both prior to and during her tenure in administration. She became a Licensed Clinical Social Worker after completing an MSW at Indiana University.


Rona Krueger, MSW – Vice President for Quality Improvement Rona Krueger, MSW – Vice President for Quality Improvement

Rona Krueger is the Vice President of Quality Improvement in Indiana. Since 2001, Krueger has managed the Quality Improvement Department for Indiana. As a CARF Surveyor, she provides expertise to Centerstone regarding accreditation activities. Additionally, Krueger is trained in Lean Sigma.

Her career has spanned the behavioral health continuum, including work in case management programs for children and adolescents, as well as for adults with severe and persistent mental illness. Her clinical roles included providing therapy to children and families, as well as serving as a program manager for the same population.

She earned a BA from Defiance College and an MA in social work from the University of Cincinnati. She has been with Centerstone since 1995.


Darcey Meridith, MSW, LCSW – Vice President of Child Services Darcey Meridith, MSW, LCSW – Vice President of Child Services

Darcey Knote Meridith is Vice President of Child Services in Indiana. She oversees all aspects of child and family services, including clinical and administrative oversight of programs including home-based services, school-based services, systems of care and foster care.

Meridith got her BA in human development and social relations from Earlham College in Richmond, Ind., and her MSW from Indiana University-Indianapolis. She is a member of the Indiana Council of Community Mental Health Centers and sits on the child services committee. She started working with Centerstone (then Dunn Center) in 1996.


Vinita Watts, MD – Medical Director Vinita Watts, MD – Medical Director

Dr. Vinita Watts has served as Medical Director in Indiana for more than three years and has been at Centerstone since 1990.

Watts earned her MD at the University of Kentucky with her adult residency and child/adolescent fellowship there as well. She is board certified in both fields.

Her professional Memberships include AACAP and ISMA and she is on the Indiana Psychotropic Medication Advisory Committee (PMAC) for Indiana Department of Child Services. Watts is a consultant to Southern Indiana Health Organization (SIHO) doing utilization review for mental health/addiction services. She has participated in clinical trials for Concerta and Adderral XR.


Thelma Chandler – Director of Indiana Military Services Thelma Chandler – Director of Indiana Military Services

Thelma Chandler is the Director of Indiana Military Services. She began working at Dunn Mental Health Center in 2002. As the Director of Indiana Military Services, Chandler provides regional crisis access and behavioral health services for veterans and their families.

Chandler received her MSW from the University of Cincinnati. She is a licensed Clinical Social Worker and Licensed Addiction Counselor. She is a member of the National Association of Social Workers and received the Indiana Chapter National Association of Social Workers of the year Award. She is a mental health provider for Wounded Warriors Retreats.


Kathy Christoff, LCSW – Director of Adult Services Kathy Christoff, LCSW – Director of Adult Services

Kathleen (Kathy) O’Brian Christoff is the Director of Adult Services in Indiana. She is responsible for the adult services in eight counties in the central and eastern area of Indiana, working with adults and their families with a higher need for services.

Christoff holds a BA in recreation and an MS in therapeutic recreation from Indiana University, Bloomington. She is a Licensed Clinical Social Worker in Indiana. She began her career with Centerstone (then Dunn Mental Health Center) in 1986. Her personal passion is for her two teenage daughters and her husband.


Scott Lewellen – Director of Marketing Scott Lewellen – Director of Marketing

Scott Lewellen is Director of Marketing in Indiana. He is responsible for setting strategic marketing, public relations and referral marketing goals. Lewellen has over 25 years of behavioral health experience in referral marketing, business development and program supervision.

Lewellen has worked in the for-profit, non-profit, inpatient and outpatient sectors. Under his leadership, the Centerstone referral marketing program in Indiana has been recognized by CARF as unique and contributing to positive treatment outcomes. He is a member of the American Marketing Association and has been with Centerstone since 2005.


Richard Prather - Compliance & Privacy Officer Richard Prather - Compliance & Privacy Officer

Richard Prather is the Compliance & Privacy Officer in Indiana. In this role, he administers and oversees the Compliance & Privacy programs in Indiana.

He was employed as a clinician by Centerstone’s legacy organization in Columbus, Ind., in 2002 where he specialized in the treatment of the most severe and persistent forms of mental illnesses. He transitioned to the Compliance program in 2011.

He is certified in Healthcare Compliance and Healthcare Privacy Compliance by the Health Care Compliance Association. He received a Master of Social Work degree from Indiana University and is licensed as an LCSW in Indiana.


Meagan Terlep, LMHC – Director of Child & Family Services Meagan Terlep, LMHC – Director of Child & Family Services

Meagan Terlep is the Director of Child and Family Services in Indiana. She is responsible for supervising the financial and clinical programming of child and family services teams across 10 counties.

She is a graduate of the University of Indianapolis with an MA in clinical psychology-mental health counseling. She is a member of the suicide prevention workgroup, the alternatives to detention workgroup, Youth Services Center Advisory Board, Wayne County Child Fatality Review Board and Council for Youth Development. She is also an ASIST trainer and a volunteer at Wheeler Mission. She has been with Centerstone since 2009.


  • Indiana Board Members Back to top
  • Terrye Davidson, Chair
  • Douglas J. Leonard, Vice-Chair
  • Linda Hobbs, Secretary
  • Brad Smith, Immediate Past Chair
  • Suzanne Koesel, CEO
  • Debra Cruser
  • Laurie Dickerson
  • Molly Dodge
  • Jennifer Embree
  • Sharon Harlin
  • Franklin Jackson
  • Geoff McKim
  • David Newgent
  • Brian Payne

View all Centerstone Board Members