Our team is proudly offering therapy in McAlester, OK!
Cornerstone Counseling Service LLC
10 E. Chickasaw
McAlester, OK 74501
918-426-4841(OFFICE)
918-426-4848 (FAX)
Cory has been with Cornerstone Counseling since the opening of the McAlester office in 2012. He serves as our Chief Financial Officer, as well as the Milan Trainer and the Private Insurance Representative. He is an asset to those he serves at Cornerstone.
Amy Foster, M.Ed. COO, HR Officer, Site Director, New Programs Consultant, Drug Testing Director, BHCM II
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.
Rea Mackenzie, Administrative Assistant- Hugo, HR Officer, Medical Billing and Insurance 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!
Karen Brojakowski, Administrative Assistant
Karen Brojakowski was born and raised in Northeastern Pennsylvania and has lived in Oklahoma for the past 24 years. Karen is a graduate of East Central University with a Bachelor’s Degree in Human Services Counseling. Karen has experience working with the homeless population and individuals with substance abuse. She has three grown children and seven grandchildren. Karen is an animal lover and when she is not working you will find her spending time with her grandchildren and her dogs.
Denise Morgan, LPC
Denise Morgan is a Licensed Professional Counselor, Registered Play Therapist, EMDR Clinician, and LPC Supervisor. Denise has been providing therapy to clients since 2003. She currently serves as a School Counselor for McAlester Public Schools and joined Cornerstone in 2022. She has experience working with individuals of all ages, including couples. She utilizes Cognitive Behavioral Therapy (CBT), Play Therapy, and EMDR in session. She loves being the mother of two teenagers who keep her grounded and on her toes.
Leslie Holstine, LADC U/S
Leslie has been in the mental health field for 11 years and has been with Cornerstone since 2015. In that time, she has been involved in a little bit of everything, including case management and crisis intervention services, substance abuse and mental health counseling for children and adults in both individual and group settings, as well as participating in community sentencing programs and LSI reports. Outside of work Leslie enjoys being outdoors, gardening, going for walks, and spending time with family.
Jessica Mathews, LPC
Jessica graduated from Southeastern Oklahoma State University with her Master's Degree in Behavioral Sciences in 2009. She enjoys working with the community and is dedicated to helping others. She is a mother to two boys and she enjoys spending time with her family. Jessica has been with Cornerstone Counseling since its beginning in 2012.
Linda has been an LPC since 1994 and has been with Cornerstone since 2016. She has worked in both inpatient and outpatient settings. As an LPC at Carl Albert Community Mental Health Center, she served many roles including providing individual and group therapy, serving as Chief of Psychological Services, and serving on both the Quality Assurance Committee and the Ethics Committee. She also supervised undergrad students in their field work, graduate practicum, and student interns. Linda became an LPC Supervisor in 1988. She has received special training on working with current and former military members and their families, including Cognitive Processing Therapy, as well as Pathological Gambling. Outside of work, Linda is a member of her church choir, McAlester Community Choir, and the Martin Luther King, Jr. Choir. She also enjoys going on mission trips, meeting new people, and hearing their stories.
Bonnie is a Licensed Professional Counselor with 7 years in outpatient mental health, in addition to 25 years as a counselor with McAlester Public Schools. She joined Cornerstone in 2016. When not working, Bonnie enjoys reading, working out, and spending time with her family.
Whitney is Licensed Clinical Social Worker who joined Cornerstone in 2019, providing services in Northwest Oklahoma (Woodward area). She is trained in Cognitive Behavioral Therapy and Eye Movement Desensitization and Reprocessing. Whitney has an extensive background in child welfare (over 15 years) and a passion for working with foster children and families involved with the child welfare system. When not working, she enjoys spending time with her family and traveling.
Bruce Deerinwater, LPC
Megan Fassino, LPC
Megan Fassino is a Licensed Professional Counselor who has been providing therapy to clients since 2014. She enjoys working with individuals of all ages, including couples. She utilizes Cognitive Behavioral Therapy (CBT) as well as traditional talk therapy in her sessions. She thoroughly loves what she does and is thankful to have the ability to serve others.
Heather Earley - LPC
Heather is a Licensed professional counselor who is certified in Trauma Focused Cognitive Behavioral Therapy, CAMs Care Suicide Prevention and who has been trained in Polyvagal theory/technique for clients on the Autism Spectrum. She will be a certified LPC Supervisor later this year. She graduated from Mid America Christian University with her Masters Degree in Clinical Mental Health Counseling. She has been licensed in Clinical Mental Health/Counseling focus since 2020. She has experience in helping clients with stress, anxiety, trauma and abuse, motivation, self esteem and confidence, and depression. She has experience working with clients of all ages in inpatient and outpatient settings, both in community mental health and private practice. She believes that you are the expert of your story and that you possess many strengths that will assist you in overcoming challenges that you face. She always says "It takes courage to seek out a more fulfilling and happier life and to take a step toward change" and she is here to support and help you on that journey. Heather loves spending time with her husband, her two young children and their pets, going to the lake, reading, shopping, cooking, and traveling.
Suzie is a Behavioral Health Case Manager II. She has been with Cornerstone since 2014 and has been in the educational field for 29 years. She’s been married to a “crazy Cajun” for 39 years. They have one son, one daughter, and 4 fabulous grandchildren. In her spare time, she enjoys spending time with family, fishing, swimming, cooking, and relaxing with friends.
