Whitney Warren-Alexander, LMFT, LADC

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A native of Arkansas City, KS, Whitney moved to Stillwater in 1998 and attended undergraduate at Oklahoma State University, receiving a B.A. in Psychology with honors and summa cum laude distinction in May of 2000. She received an M.S. from Oklahoma State University in Marriage and Family Therapy with an emphasis on family-centered addiction treatment in 2005.

She completed an internship at the Tulsa Women and Children's Center in Tulsa, OK and began working at Four Winds Ranch Recovery Center in Guthrie, OK soon after. Whitney worked as a primary therapist and Family Program Coordinator before going into private practice full time in Stillwater in 2008.

Whitney is a licensed Marital and Family Therapist and Licensed Alcohol and Drug Counselor who specializes in treatment of adolescents and adults. Whitney uses Eye Movement Desensitization and Reprocessing (EMDR) Therapy to heal trauma, anxiety and depression. She also treats body image issues, self harm and self injury, and provides treatment for divorce recovery in individuals and families. In addition, nearly half her caseload entails working with couples with marital or relational issues. Whitney prefers to see clients ages 14 and up.

Whitney is also available for consulting with therapists wanting to create a private practice. This includes strategies on marketing, successful business practices and billing insurance. Individual and group rates are available.

She is also currently a licensed supervisor in LMFT and LADC for the State of Oklahoma and can supervise LMFT and LADC license applicants. She is an AAMFT-Approved Supervisor for LMFT candidates. She currently supervises the graduate and undergraduate interns who work at her practice.

Chandler Yarbrough, B.A., Clinical Intern

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Chandler grew up in Enid, Oklahoma, but feels most at home in Stillwater. She earned a B.A. in Multimedia Journalism and a minor in Spanish from Oklahoma State University in 2015.

After graduation, Chandler was hired as a reporter for 5News in Arkansas. Throughout her time as a reporter, she realized her true passion was for mental health and helping others. She and her husband moved back to Oklahoma so she could return to OSU where she is currently working toward an M.S. in Mental Health Counseling.

Chandler is a member of the Body Image & Disordered Eating Laboratory at OSU which aims to study the relationship between body image and the well-being of college students while advocating alongside those students. She completed training for the Body Project- a body-acceptance program designed for young women. Her passion is working with adolescents and young adults, but she is looking forward to gaining experience working with wide variety of clients.

Currently, Chandler is a clinical intern at The Warren Alexander Group and utilizes an income-based sliding scale for payment.

Mary Gibbons, M.S., LMFT

Mary attended Oklahoma State University for her undergraduate degree, where she received a B.A. in Psychology--along with the distinction of summa cum laude.  She worked as a Victim Advocate at Wings of Hope Family Crisis Services for some time before receiving an M.S. degree in Marriage and Family Therapy from Oklahoma State in 2013.  Throughout her clinical career, she has worked in a variety of settings including Oklahoma Baptist University--University Counseling, Payne County Youth Services, The Center for Family Services at OSU, and Wings of Hope Family Crisis Services.  This diversity of experience has allowed Mary to work with a wide range of presenting problems as well as to provide on-site supervision of clinical interns.  Mary is a Licensed Marital and Family Therapist and has received additional training in Eye Movement Desensitization and Reprocessing (EMDR), Trauma Focused Cognitive Behavioral Therapy (TF-CBT), Parent-Child Interaction Therapy (PCIT), and Filial Therapy.  Her passion as a clinician is to help clients build insight and to equip them with the tools they need to improve their relationships, recognize their personal strength, and effect positive change in their lives. 

Candice Kemble, LPC


Candice is a Licensed Professional Counselor. Her passion is working with youth who have experienced trauma. Candice has additional training in Trauma-Focused CBT. She obtained her bachelor’s in psychology from Northwestern Oklahoma State University. She continued at Northwestern Oklahoma State University for her Master’s in counseling psychology. Candice completed her internship at the Otoe-Missouria & Ponca Tribes of Oklahoma. Candice is Native American her tribes include Ponca and Otoe-Missouria. She has several years of experience working with the Native American population & youth.

After completing her internship she went to work at Northern Oklahoma Youth Services where she was facilitator for The First Time Offenders Program, facilitator for an adolescent anger group, & co-facilitated Nurturing Parenting classes.

Candice most often uses Solution-focused therapy, TFCBT, CBT & motivational interviewing. Her primary area of focus is trauma, however she is willing to work with & treat people who are experiencing a wide variety of mental health dilemmas. She works with ages 2.5-99.

Courtney Bolejack-Lowe, LPC

Courtney first imagined herself being a "real-life" therapist sometime in the 8th grade. When she reached high school, in Kansas, she was disheartened when the school could not fund a psychology class. By the time Courtney entered her bachelor’s degree at Southwestern College she had never taken a formal psychology course but she stayed on course to one day be a therapist. Courtney graduated with her Bachelor’s in Psychology and minor in Leadership in May of 2008 from Southwestern College in Winfield, Kansas.

She entered the Master’s program at Northwestern Oklahoma State University in 2009. Courtney received her master’s from Northwestern Oklahoma State University and received her Licensed Professional Counseling (LPC) distinction in December of 2016. Courtney officially moved to Stillwater in January of 2016 and now considers this her full-time home.

Courtney specializes in the treatment of depression and anxiety disorders, personality disorders,agoraphobia, eating disorders, porn addiction, infidelity, PTSD and other forms of trauma, and also enjoys offering family therapy. Courtney prefers working with ages 14 and above.


Gaetana K Del Prete, M. Ed, LPC, BCN

I am happy to be “back home’ in Stillwater. My husband and I returned about one year ago after living many years in the Atlanta metro area. Prior to moving here I worked as an associate at Sweetwater Psychological Associates, a mental health clinic established, owned, and administered by my husband, David Martin, PhD , retired clinical psychologist.

I was born and raised in Texas. Formal education includes a BA degree at that the University of Oklahoma, and M.Ed., summa cum laude, from the University of Central Oklahoma in Counseling Psychology. For over 30 years I have worked as a psychotherapist with children, adolescents, adults and families in a variety of settings including mental health clinics, private practice, and a residential psychiatric facility. I am also a retired classroom teacher from the state of Georgia. Education experience includes teaching high school level English and providing students with special education services including case management in a public education setting.

I specialize in offering brain based, evidence based, therapeutic interventions utilizing neurofeedback and biofeedback. These clinical approaches engage adults, adolescents, and children to address current difficulties or to challenge themselves to perform more effectively. I was first introduced to Neurofeedback about 10 years ago while working as a psychotherapist in a residential psychiatric facility treating children and adolescents. It was one of those serendipitous, life changing experiences of being in the right place at the right time. I was fortunate to be able take advantage of specialized training and experience the impact of this powerful, therapeutic tool in working with clients.

Neurofeedback training , also referred to as eeg biofeedback or neurotherapy, is a form of operant conditioning in which a client trains their own brainwaves. The client is given feedback and utilizes the same ability that is required to learn any new skill to train their brainwaves to a more efficient state. It is a personal, empowering learning experience that enhances a client’s ability to manage the stresses and challenges of life. Neurofeedback training sessions improve emotional self regulation and mental flexibility. The client trains their brain to ultimately produce more efficient brainwave patterns. Once the brain begins to reorganize its power it continues to do so into the future after the training sessions cease. The goals of neurofeedback training are to help the client manage the physiological response to stress, improve focus, memory, and decision making.

The positive outcomes of training often include increases in productivity and relaxation, enhancement of restorative sleep, and increases in a personal sense of well being.

I am excited to be able to provide these services in Stillwater.

Jordan Clipson B.S. Clinical Intern

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Jordan grew up in Paris, Texas. She earned a B.S. in Family Studies and Human Services with a minor in Conflict Analysis and Trauma Studies and a certificate of Conflict Resolution from Kansas State University in 2017. She is currently earning a M.S. in Marriage and Family Therapy from Oklahoma State University.

Currently, Jordan is a clinical intern at The Warren Alexander Group and The Center for Family Services in Stillwater, Oklahoma. She has experience working with individuals, premarital/marital couples, parents, and children. Jordan’s clinical and research interests include working with couples through financial challenges.

Jordan is certified in the premarital/marital PREPARE-ENRICH assessment. At the Center for Family Services she also serves as a facilitator for the School Age parenting group that provides parents with skills of love, boundary setting, and flexibility in their parenting.

As a clinical intern at The Warren Alexander Group, Jordan utilizes an income-based sliding scale for payment.

Laci Campbell, NCC, LPC, LADC


Laci moved to Stillwater in 1998 to pursue a Masters degree in community counseling.  She completed an internship at Oklahoma Lions Boys Ranch where she conducted groups and individual sessions for adolescent males in a group-home setting.  While in graduate school, she also worked at Payne County Family Practice, Inc. as a child advocate, workshop presenter, and therapeutic mediator for families in the divorcing process.  While there, she completed alternative dispute resolution training  under the Oklahoma Bar Association, advanced mediation training, and assisted in forensic interviewing for court-referred family and divorce cases.          

After graduating in 2000, she continued her work at PCYS and concurrently completed a certification in school counseling.  Post graduate work also included work in therapeutic foster care,  work at Payne County Youth Services,  and internships at OSU drug and alcohol clinic and Payne County Counseling.  She left OSU to return to PCYS as a clinical director.

Motherhood has presented an opportunity for her to work on a contract basis with PCYS as a therapist focusing on school settings and focusing on cases with Oklahoma Juvenile Authority until August 2014.  In joining this private practice, her interest areas are depression and anxiety treatment, family and divorce adjustment, drug and alcohol treatment for individuals and families, infertility counseling and trauma.

DeLeah Poe, MCP, LPC


DeLeah grew up in the Northwest Oklahoma and Southwest Kansas area and graduated from Ulysses, KS.  She attended Northwestern Oklahoma State University where she received her B.S. in Psychology in 2005. After graduating NWOSU she moved to Fort Bragg, NC to be with her husband who was serving in the US Army 82nd Airborne Division. Later, in 2005, they PCS’d to Fort Richardson, Alaska where they lived for 4 years.  After 8 years of service her husband honorably discharged from the Army and they returned to Oklahoma. They settled in Stillwater in 2009.  DeLeah returned to Northwestern Oklahoma State University where she received her M.S. in Counseling Psychology in 2013 with her emphasis in research on military mental health.

DeLeah completed her internship at two separate child and family agencies, where she gained experience working with children, adolescents, families and parenting groups. Upon graduation, she was able to continue at the child and family agency where she gained additional experience with adults, families, children, adolescents, and school-based group counseling. Areas of her experience include anxiety, divorce, depression, trauma, TBI, personality disorders, and PTSD.

DeLeah bases her therapy on the Solution-Focused approach but also incorporates Cognitive Behavioral, Gestalt and Reality therapy.  She believes that progress begins by determining what goals a person wants to achieve through therapy. Once established, the person is able to begin moving toward those goals at their pace.

DeLeah is a member of ACA, OCA, and CAMOVAF.  She is available for Individual Therapy for children, adolescents and adults, as well as Family Therapy.  She has worked with individuals ranging from age 3-65.  DeLeah is also trained to provide mental health evaluations at an LPC level.  These evaluations include a psycho-social assessment, personal interview and MCMI interpretive report.

Renissa Arnold, M.S., Clinical Intern


Renissa grew up in Leavenworth, Kansas. She received her Master’s degree in Educational Psychology from Oklahoma State University in 2018 and her Bachelor's degree in Psychology from Oakwood University in 2017. Renissa is a first-year doctoral student in the Counseling Psychology Program at Oklahoma State University.

Renissa previously worked at the Counseling and Counseling Psychology Clinic at OSU. Currently, Renissa is a Clinical Intern at the Warren Alexander Group, Intake Counselor at the University Counseling Services, and a consultant at the University Health Services at OSU. She has experience working work with individuals, adolescents, children, and college age populations with issues related to anxiety, depression, trauma, and body image. Renissa’ clinical interests include working with individuals, adolescents and racial and ethnic minority populations.

Renissa's has training in directive and non-directive play therapy. Renissa’s research and clinical interests include black masculinity, play therapy, multicultural counseling, mental health stigma, race-related stress, and social justice.

As a clinical intern at The Warren Alexander Group, Renissa utilizes an income-based sliding scale for payment.

Kendra Lassley, LPC

Kendra is a Licensed Professional Counselor. After obtaining her Bachelor’s Degree in Psychology at the University of Central Oklahoma, Kendra began working in the mental health community in 2011 as a mental health technician. With time, she continued her work in the field as a Behavioral Health Rehabilitation Specialist in 2012.
While working in her role as a BHRS, Kendra attended Langston University in Oklahoma City and received her Master’s in Rehabilitation Counseling, emphasizing LPC in the spring of 2013. Kendra moved to Stillwater after she and her husband were married in the fall of 2013. She has been working as a therapist since that time.

Kendra loves to work with children, adolescents, and adults with issues related to depression, anxiety, trauma, and ADHD.

Kendra said she “feels fortunate to pursue her career as a way to serve others with dignity and respect, and care for others with concern and empathy.” She believes the power of change and growth is within each individual, and is willing to assist others in reaching their individual goals regarding treatment. Please contact her if you would like to work with her.

Brooke Brunken, LPC

Brooke grew up in Garber, OK and moved to Stillwater in 1997 to attend Oklahoma State University.  She graduated from OSU in 2001 with a Bachelor of Arts degree in Psychology and in 2009 with a Master of Science degree in Counseling.  She became a Licensed Professional Counselor in 2011 and an LPC Supervisor in 2013. 

Brooke started working in mental health in 2005 as a mental health case manager in Stillwater and the surrounding areas.  Throughout her career she has had the privilege of working in many different settings addressing a wide range of topics.  Brooke has had experience teaching parenting skills, working with domestic violence and sexual assault, teaching drug and alcohol classes and working with people diagnosed with severe mental illnesses. She has provided services to individuals, families, couples, and groups.  Brooke has been the supervisor of children’s outpatient services, a PACT Team Leader, and has facilitated psychiatric medication clinics for both children and adults. 

Brooke utilizes concepts from Solution-Focused therapy, Cognitive-Behavioral therapy, Reality therapy, and Person-Centered therapy in her practice.  She finds it valuable to look for small changes that can make a big impact with her clients in therapy.  She helps her client’s problem-solve issues that are barriers in their lives and helps them gain coping skills to help them manage their stressors. 

Brooke currently works full-time in a school-based setting and will be available for appointments on Saturdays.  She is also available for LPC supervision. 

Ethan Jones, BS Clinical Intern


Ethan grew up in Salt Lake City, Utah and earned a B.S. in Family Life from Brigham Young University in 2017. He and his family moved to Oklahoma in August 2017 to pursue his Master’s education in MFT.  He is currently a Master’s student in Oklahoma State University’s Marriage and Family Therapy program.

As a student, he has been trained in Oklahoma’s Co-Parenting for Resiliency curriculum for parents with children who are seeking divorce. Ethan is also a certified Prepare/Enrich educator and enjoys working with engaged couples.

Ethan is currently doing research seeking to understand divorced father’s experiences. Due to this research, he enjoys working with couples considering divorce or individuals that are working through a recent divorce, and/or those dealing with lasting effects from divorce.

As a clinical intern at The Warren Alexander Group, Ethan utilizes a income based sliding scale fee.  

Mary Mawdsley B.S. Clinical Intern

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Mary grew up in Oklahoma City, OK and later moved to Stillwater, OK to fulfill her dream of being a Cowboy.  She earned her B.S. in Human Development and Family Science at Oklahoma State University in 2016 and is now working on earning her M.S. in Human Development and Family Science with a specialization in Marriage and Family Therapy.  In 2015, Mary first started as an Undergraduate Intern at The Warren Alexander Group, but has since returned as a Marriage and Family Therapy Clinical Intern.  She is also currently a clinical intern at The Center for Family Services.

Mary has experience working with individuals, premarital/marital couples, and families.  Her clinical interests include working with couples, individuals, adolescents, and families.  Mary is certified in the premarital/marital program PREPARE-ENRICH, has been trained in Active Parenting First Five years, and trained in Active Parenting Teens.  Additionally, she is trained as a facilitator in the Co-Parenting for Resilience course, offered to help separating/divorcing parents be better prepared to help their children through the transitions of separation/divorce.

As a clinical intern at The Warren Alexander Group, Mary utilizes an income-based sliding scale for payment.

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This is Teddy.  He is currently training to be a therapy dog for use in our practice. He is a toy schnoodle, part schnauzer, part poodle, meaning that he is non-shedding and should not bother clients with asthma or allergies. Therapy dogs are used to treat anxiety, depression, trauma and children's social skills. Teddy comes to the office as part of his socialization process. If you see him, please help his training by petting and playing with him.