Leadership Team

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Joy R. Sloan, LCSW

Chief Executive Officer

Joy has been with Green Country as a full time employee since 1992. Throughout this time she has performed many clinical duties, however her primary focus has always been in the area of crisis services. Joy served as the Clinical Director for several years before being hired as CEO in January of 2009. She received a master’s degree in Social Work from the University of Oklahoma and is a Licensed Clinical Social Worker.

Joy loves her hometown and is committed to the growth of the community. “I love the history we enjoy and the possibilities of the future. There are so many great things about our community. My hope is that Green Country continues to be a vital spoke in that wheel of making our community great.”


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Carla Lovelady

Chief Fiscal Officer

Carla was first employed with GCBHS in 1986 as Financial Services Coordinator and became the Chief Fiscal Officer in 2006. Carla is a graduate of Oklahoma State University with a Bachelor of Science in Business Administration.

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Mark Johnson

Information Technology Director

Mark has been employed with Green Country Behavioral Health Services since 1995. He has served GCBHS as the IT Director for the last 12 years. Mark is a graduate of Northeastern State University in Tahlequah, Oklahoma with a Bachelors of Science in Business Administration.

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Diane Woodard

Muskogee County Head Start/Early Head Start Director

Diane was employed with GCBHS in 2011 as Head Start/Early Head Start Director.

She has 19 years of experience in Head Start, holds an Oklahoma Early Childhood teaching certificate, and is a graduate of Northeastern State University with a Master of Education in Early Childhood Education.

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Cheryl Nelson

Contracts Compliance Director

Cheryl has worked at GCBHS since 1988, beginning in data processing and medical transcription. She also performed administrative contract work at Green Country through the agency’s first board president in 1980.

Cheryl has been a member of the GCBHS leadership team since 1989, and has worked in several administrative/supervisory positions. She became the agency’s Contracts Compliance Director in 1996, and also serves as the grant writer for GCBHS and Head Start/Early Head Start.

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Lisa Deason

Clinical Director

Lisa has worked for GCBHS since 1996. She has overseen our children’s programs since 1998 and has been the Clinical Director since 2009.

Lisa has specialized training in the areas of trauma and attachment work and was an adjunct instructor at Langston University and Tulsa Community College for many years. She has provided workshops for the Casey Foundation, the University of Oklahoma National Resource Center, and for the Department of Human Services. She is the past president of the Oklahoma Play Therapy Association and past board member for the Laura Dester Shelter.

Lisa has a master’s degree in Applied Behavioral Science with an emphasis in Community Counseling from Oklahoma State University. She is licensed by the State of Oklahoma as a Professional Counselor.