Tishomingo Office Staff

 Amy is a graduate of Paris Junior College and Texas A&M University-Commerce. She graduated in August of 2023 with her masters degree in Clinical Mental Health Counseling from Lamar University.  She served in Texas and Oklahoma as a teacher for many years. In 2009 while teaching in Oklahoma, she began working as a Behavioral Health Rehabilitation Specialist for a local counseling agency. In 2010, she left her teaching career and began working for them as Program Director of after-school programs. In 2012, she and her father, Steven Foster, opened Cornerstone Counseling Service where she has served as Chief Operations Officer, New Programs Consultant, Drug Testing Director, and as a Behavioral Health Case Manager. Amy is also certified in DOT and non-DOT Drug and Alcohol Testing, is a DOT Qualified Specimen Collector Trainer, as well as a Breath Alcohol Technician Instructor. She is currently serving as the Site Director for offices at Idabel and McAlester, OK, and Paris, TX.



 Cory Kuykendall, CFO, Milan Trainer/Private Insurance Representative Cory has been with Cornerstone Counseling since the opening of the McAlester office in 2012. He serves as Chief Financial Officer, as well as the Milan Trainer and the Private Insurance Representative. He is an asset to those he serves at Cornerstone.

Rea  Rea Mackenzie, Administrative Assistant, Assistant HR Officer, Medical Billing Specialist, Site Director

Rea is the Administrative Assistant in Hugo, OK. She is also the Assistant HR Officer, the Medical Billing Specialist, and a Site Director for the McAlester, OK office. When she isn't studying or working, Rea enjoys traveling with her two dogs, spending time with loved ones, or relaxing with a book. With over a decade of collective experience in customer service, sales, registration assistance and laying the foundation for business start-ups and filings, Cornerstone welcomes Rea Mackenzie to the team!

Angie Morgan In Tishomingo, Oklahoma

Angie Morgan, MSW, LADC-MH

Angie Morgan has worked in the mental health field for 12 years. She has a masters in social work where she graduated from the University of Oklahoma. Angie Is a substance abuse counselor who also specializes in medical social work. Angie's area of expertise is in providing youth and families with resources, advocacy and strengths based planning to help guide and maintain stability in her client's lives. Angie has been recognized with her leadership skills with social work in healthcare. She is always willing and eager to lend a helping hand while serving those in need.

sun  Tisha Beshirs, LPC, Clinical Director


 Darcey Hart, LPC U/S


Laura Beason, BHCM II 

Laura has worked in the mental health field since 2010.  Previously working in social services 7 years prior.  Laura currently is a Behavioral Health Rehabilitation Specialist/Case Manager II.  She has experience working with both adults and children and works to help them achieve attainable goals and important coping skills to better their lives.  

Amy Morgan In Tishomingo, Oklahoma

Amy Morgan, BHCM II

Amy has been a social worker since 2004 and a case manager since 2009. She enjoys working with a variety of populations; however, her specialty is grief counseling. She works with therapists who specialize in substance abuse counseling, family counseling and school based counseling. She is happy to assess the behavioral health needs that the local communities may have.

Jason Morgan

Jason Morgan, BHCM II

Jason Morgan has been working in the mental health field for 7 years. Jason is a certified behavioral & case manager specialist. Jason has a background in social work. Jason enjoys working with populations who are mentally challenged. Jason is the president of the Tishomingo community's local housing authority where he has served on their board for several years. Jason specializes in career and technology orientation, leading and encouraging those he serves with continuing their educational and career goals. Jason is very kind and easy to work with for those who are nervous about reaching out for help.

Counseling Services

Couples & Family
Relationship Issues
Grief and Loss
Anxiety and Fears
Personal Growth
Parenting Support
Stress Management

Drug Testing Services

Post Accident
Return to Duty
Saliva Test
Reasonable Suspicion
Random Drug Screen Pool
Breath Alcohol Testing
Hair Follicle Testing
Fingernail Testing

Cornerstone Counseling Service, LLC
1849 Lamar Ave. Suite 160
Paris, TX 75460

Cornerstone Counseling Service, LLC
212 E. Duke
PO Box 61
Hugo, OK 74743

Cornerstone Counseling Service, LLC
412 S. Central Ave.
Idabel, OK 74745

Cornerstone Counseling Service, LLC
10 E. Chickasaw Ave.
McAlester, OK 74501

Cornerstone Counseling Service, LLC
603 W. Main
Tishomingo, OK 73460