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Centerstone Indiana Leadership

Suzanne Koesel - Chief Executive Officer

Suzanne Koesel serves as Chief Executive Officer of Centerstone Indiana which has a network of more than 60 facilities in 17 Indiana 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.

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.

Koesel is a licensed clinical social worker and received a bachelor’s degree in social work from Indiana University in Bloomington, Ind., and a master’s degree in social work from Washington University in St. Louis, Mo. She is currently 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 - Chief Administrative Officer

Shirley Arney is Chief Operating Officer for Clinic, Administrative and Support Services for Centerstone Indiana. As COO, she manages all areas of operations. Arney 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. 

Ms. Arney received 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 - Chief Operating Officer

Robb Backmeyer serves as Chief Operating Officer for Recovery Services for Centerstone Indiana. As Recovery Services COO, Backmeyer is responsible for Adult Services, including Community Support Services, Assertive Community Treatment (ACT) and Residential services; Child & Family Services, including SOC and Therapeutic Foster Care; Grants; and Employment Services.  

Backmeyer graduated from Wabash University with a BA in philosophy and history, and also received a Master’s in social work from IUPUI and an MBA from Indiana Wesleyan University.

He serves on the Board of Directors for Affiliated Service Providers of Indiana (ASPIN) as well as the Board for Communities in Schools, Wayne County, and the Board for Community Corrections, Wayne County. Backmeyer has been with Centerstone for 20 years including Child & Family Services, Quality Improvement, Utilization Management and Director of Older Adult 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 through Centerstone Indiana and behavioral health Services for veterans and their families.

Chandler received her MSW from University of Cincinnati. She is a licensed Clinical Social Worker and License 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 & Family Serivces

Kathleen (Kathy) O’Brian Christoff is the Director of Adult & Family Services. She began her career with Centerstone (then Dunn MHC) in 1986. She is responsible for the Adult services in 8 counties in the central and eastern area of Centerstone Indiana, working with Adults and their families with a higher need for services.

Christoff holds a Bachelor degree in Recreation and a Master of Science in Therapeutic Recreation from Indiana University, Bloomington. She is a Licensed Clinical Social Worker in Indiana (LCSW). Her personal passion is for her two teenage daughters and her husband.


Linda Grove-Paul - VIce President of Adult Services

Linda Grove-Paul, as Vice-President, Adult and Family Services, is responsible for all programming related to adults including addiction, forensic, supportive housing, and several state and federal grants. Centerstone provides comprehensive, integrated team based care to adults and families through our 20 county region.

She attended Indiana University where she earned a Masters in Pubic Administration, Finance and Indiana University for her MSW. She is a member of NASW and the American Correction’s Association.


Jenny Harrison, LCSW - Vice President of Access & Crisis Services

Jenny Harrison is Vice President of Access & Crisis Services for Centerstone Indiana.  She became a Licensed Clinical Social Worker after completing an MSW at Indiana University.  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. Her extensive background led to her passion for suicide prevention.  Harrison is dedicated to program development and education surrounding suicide prevention, both for her staff and for the communities they serve. 


Rona Krueger, MSW - Vice President for Quality Improvement

Rona Krueger is the Vice President of Quality Improvement for Centerstone Indiana. Krueger's 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. 

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

She earned a bachelor’s degree from Defiance College and earned a master’s degree in social work from the University of Cincinnati. She has been with Centerstone since 1995.


Scott Lewellen - Director of Marketing & Public Relations

Scott Lewellen, Director of Marketing and Public Relations for Centerstone Indiana, 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 of Indiana referral marketing program 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.


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

Darcey Knote Meridith started at Dunn Center in 1996 and is currently Centerstone Indiana's Vice President of Child and Family Services. She oversee all aspects of Child and Family Services, including direct supervision of Directors. Programs include Homebased services, School based services, Systems of Care, Foster Care Select. Responsible for clinical and administrative oversight of these programs.

Meridith got her Bachelor of Arts in Human Development and Social Relations from Earlham College in Richmond, Indiana, 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.


Maria Nehrt - Director of Facilities

Bio to come...


Amanda Pardue - Director of Child Services

Bio to come...


Steven Reynolds - Director of Finance

Steven A. Reynolds is the  Director of Finance for Centerstone Indiana and has been with the company since January 25, 2016.  He is responsible for the accounting functions, including Accounts payable,  Payee-ship and Account Receivable for the state of Indiana.  He is a graduate of Central Michigan University, Mt. Pleasant Mich. with a BSBA Degree in Management /Spanish an MBA in Finance with a Major in Accounting and is a CPA.

Reynolds is a member of the Knights of Columbus, Disabled American Veterans and Jaguar Club of North America.  He has been married 33 years and has two adult daughters and a beautiful granddaughter.


Beth Rodriguez - Director of Advancement

Beth Rodriguez is the Director of Advancement, responsible for executing the strategic plan for all fundraising for Centerstone Indiana. Beginning her tenure at Centerstone in late 2011, Rodriguez developed and continues to grow Indiana’s first organized and comprehensive development program including the CARES employee giving program and internal distribution program which allows philanthropic revenue to be used directly by staff to immediate impact and improve the lives of the clients in our care. Sheh focuses on growing an annual and individual major giving effort along with managing a large portfolio of local, regional and national foundations to enhance and grow new and existing programs throughout the state. She also leverages the network of funder relationships to build social capital and valuable community relationships throughout the State’s footprint and beyond.

Rodriguez shares her extensive development and fundraising knowledge with new generations of nonprofit leaders through her work as Adjunct Faculty at Indiana University’s School of Public Health. She holds an MA in Philanthropic Studies from the Lilly Family School of Philanthropy at Indiana University. She is an active Rotarian and, in her spare time, she loves being outside, cooking, traveling and spending time with her family.


Michelle Sears - Director of Support Services

Bio to come...


Greg Sidell, MD - Associate Medical Director

Dr. Greg Sidell is the Associate Medical Director for Centerstone Indiana. He has been with Centerstone since 2000. After earning a BA in French and a BS in Biochemistry at Indiana University in Bloomington, he got his MD at Indiana University School of Medicine in Indianapolis.


Bob Siegmann - Senior Vice President of Integration Collaboration

Bob Siegmann is Senior Vice President for Healthcare Integration and Collaboration for Centerstone of Indiana. In that role, he manages psychiatric and nursing staff, a variety of integrated health services, and Red Oak Industries. At different points in his career, Seigman 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 holds a bachelor’s degree in social work from Wabash College and an MSW and MBA from Indiana University. He is a certified Lean Six Sigma black belt. He has been with Centerstone since 1974.


Meagan Terlep, LMHC - Director of Child & Family Services

Meagan Terlep  is the Director of Child and Family Services. Terlep has been with the organization since 2009. She is responsible for supervising the financial and clinical programming of our Child and Family Services teams across 10 counties in Indiana. 

She is a graduate of the University of Indianapolis in Indianapolis, Indiana with a Masters degree in Clinical Psychology- Mental Health Counseling. She is a member of the Suicide Prevention workgroup, 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.


Vinita Watts, MD - Medical Director

Bio to come...


Board of Directors
Brad Smith, Chair
Terrye Davidson, Vice-Chair
Jeni Embree, Immediate Past Chair
Kristi Rowell, Secretary
Suzanne Koesel, CEO
Nicholas Spagnolo, Executive Liaison
Dave Emmert, Esq.
Sharon Harlin
Linda Hobbs
Franklin Jackson
Mamie McDonald
Gil Palmer
Jeffrey D. Pflug
Steve Taylor
Cheryl D. Zell