Geoffrey E. Buck, Psy.D. CEO
Dr. Buck has extensive experience in developing, implementing and managing large-scale behavioral health coverage benefits, including Medicaid, Medicare, and private health insurance, and has been the implementation leader for all aspects of numerous public and private programs. Dr. Buck also has experience with EAP work and unique or customized programming for specialized populations. He’s experienced with accreditation processes including URAC and NCQA. Geoff is a licensed clinical psychologist with over twenty-five years of experience including practice in a variety of settings.
Charles Coats, MD, Medical Director
Dr. Coats joined the InteCare staff as Medical Director in 2001, and also serves as a Associate Medical Director at Adult & Child Center. Dr. Coats has over twenty years of practice experience. He received his M.D. from the Indiana University School of Medicine, and is Board Certified in both Psychiatry and Child and Adolescent Psychiatry.
Rebecca Sigafus, MSW, Chief Operating Officer and Director of Quality Improvement
Becca Sigafus has more than 20 years experience in behavioral health and managed care with 10 years dedicated to the coordination and oversight of quality improvement programs. She joined InteCare, Inc. in 2000 as the Director of Quality Improvement and was responsible for the development and implementation of the InteCare Quality Improvement Program. Becca continues to manage all facets of the Quality Improvement Program including program direction, organizational policy and procedure along with the initiating performance improvement projects for InteCare and its credentialed provider network. Becca has broad behavioral health experience which includes the provision of direct service within the Community Mental Health System and as a Quality Improvement Manager for a large, national managed behavioral healthcare company. Becca has an extensive background in behavioral health accreditation including URAC, NCQA, The Joint Commission and CARF. She earned her Masters of Social Work Degree from Indiana University.
Venita J. Moore, CPA, MBA, Chief Financial Officer
Venita is a versatile management professional with more than 20 years of experience in the public, private, and not-for-profit sectors. Venita has provided fiscal management and/or accounting services to small businesses, not-for-profits, and schools and formerly served as the Interim and Deputy Secretary for the Indiana Family and Social Service Administration and Chief for the Division of Planning and Special Programs at the Internal Revenue Service. She joined InteCare as CFO in 2005.
Julie Maxwell-Coker, MSW, LSW, Credentialing Manager
Julie Maxwell-Coker joined the InteCare staff in 2003. Prior to joining InteCare she worked in the claims department for a property casualty insurance company for four and half years. Julie graduated from Indiana State University with a Bachelor of Science in Sociology. She also graduated from Indiana University, Indianapolis in 2006 with a Master of Social Work and is a Licensed Social Worker in the State of Indiana.
NaKaisha Tolbert-Banks, MSW, Program Manager
NaKaisha Tolbert-Banks serves as the Program Manager for the Neighborhood Based Mental Health Services Program. NaKaisha has designed and implemented several programs related to mental health, which educate and serve minorities within the Indianapolis community. She received her Master of Social Work degree from Indiana University and has over 10 years of experience in the Social Services and Behavioral Health arena. She has most enjoyed her work in Child Welfare and further work in the Behavioral Health field, in which she worked as a Psychotherapist. Additionally, she has experience in and has enjoyed working with at-risk youth suffering from addictions issues, mental illness and homelessness.
Carol Gorbett, BS, Credentialing Specialist
Carol joined the InteCare staff in 2009 with over four years of experience with Mental Health Provider Credentialing and nine years experience working in Managed Care Organizations. Carol earned her Bachelor’s of Science degree from Indiana Wesleyan University.

Jill Derryberry, BA, MHFRP Manager
Jill Derryberry joined InteCare in 2005 and serves as MHFRP Manager. She oversees the Mental Health Funds Recovery Program (MHFRP). Prior to joining InteCare, Jill worked in the Financial Aid Industry for 5 years. Jill earned a Bachelor of Arts degree in Psychology from Indiana University South Bend.

Stacy Veach, LCSW, Clinical and Provider Relations Director
Stacy has extensive clinical practice and managed care experience, having practiced in private practice, and institutional outpatient settings (including CMHCs). She also has worked in management positions for two national Managed Behavioral Health Organizations as well as one of the nations largest insurers. Stacy earned her MSW from Indiana University. After coming to InteCare in 2009, she works closely with our Network Providers and managed care partners in network management and troubleshooting, and in clinical service development.

Kacey Preston, BA, Data Mangement Specialist
As Data Management Specialist for the MHFRP, Kacey coordinates the Roster and Time Study Processes for the Funds Recovery Program. She obtained her bachelors degree from Indiana University Purdue University of Indianapolis where she was President of the Communication Studies Honor Society, Lambda Pi Eta. Kacey has wide-ranging experience managing data for various programs and events. She became of a member of the InteCare staff in 2010.
Shirley Anderson, Provider Database Specialist
As Provider Database Specialist, Shirley works closely with our Network Providers to keep our provider database current. She also is responsible for entering any new providers into the database. Shirley joined InteCare in 2010 with extensive knowledge in managed care contracts, licensed staff credentialing and managed care benefits and requirements in behavioral health. Shirley has 16 years of experience working at a Community Mental Health Center.