top of page
Team Talk


Mission Psychology is a team of behavioral health experts, committed to helping people with medical, cognitive, and emotional challenges. We aim to provide personalized care by understanding the unique needs of our patients and empowering them in building the skills needed to cope, grow and thrive.

Psychologists are doctors, but we are different than psychiatrists. We are not medical doctors and we do not prescribe medicine. We work closely with your physicians to coordinate your care. 

Our team includes psychologists, psychological associates, counselors,  therapists, postdoctoral fellows, and practicum students.


RLT 2022_edited.jpg


Russel Thompson (Trey) is a licensed psychologist and the clinic director at Mission Psychology. He has been working with adults and children in San Antonio for 20 years, completing an internship and fellowship at the South Texas VA System. He provides psychological and neuropsychological assessment with a particular interest in dementia and other cognitive problems. He offers therapy for people with complex health and mood problems.

Follow Dr. Thompson at Facebook at 

Russel Thompson is a Licensed Psychologist with the Texas State Board of Examiners of Psychologists (TX License #32230; Expires September, 2023).


Dr. Jackson is a  Licensed Psychologist who has been with the practice part-time since January 2015 and a staff psychologist at the State Hospital since October 2012.  She completed her internship at UT Health Science Center- San Antonio in 2011 and has served as adjunct clinical faculty since 2015. Dr. Jackson provides consultation and psychological services to children, adolescents, and adults. Her specialties include depression, anxiety, stress related issues, trauma, problem behaviors and forensic psychology.

Eboney Jackson is a Licensed Psychologist with the Texas State Board of Examiners of Psychologist (TX License # 36251, expires 1/31/2023).



Dr. Kendall John is a Postdoctoral Fellow at the San Antonio office of Mission Psychology. She received her Ph.D. in Clinical Psychology from Texas A&M University in 2022.  She completed her professional internship at the South Texas VA System where she received speciality training in treating trauma as well as training in gender-affirming healthcare.  Dr. John provides psychotherapy and assessment services to adults and adolescents in the San Antonio office. She is LGBTQ+ affirming.  Her clinical interests include depression, anxiety, trauma, and relationship dysfunction.  


Dr. John is provisionally licensed by the Texas Behavioral Health Executive Council (License # 39567, expires 9/09/2024).  She is supervised by Dr. Russel Thompson, Licensed Psychologist.

KALYN WILLIAMS, M.S. - Licensed Marriage and Family Therapy Associate

Kalyn Williams is a licensed Marriage and Family Therapist Associate at the San Antonio office of Mission Psychology.  She received her master’s degree in Marriage and Family Therapy at Auburn University. Kalyn provides couples and family therapy and delights in working to help people move towards greater resonance and fulfillment in their relationships and other areas of their lives. Kalyn's main clinical interests include marital conflict, difficulties in communication, and relationship improvement. 

Kalyn aims to make therapy more accessible and offers a sliding scale fee structure for a limited number of appointments, dependent on need and availability. 

Kalyn is licensed by the Texas Behavioral Health Executive Council (License #204847, expires 02/29/2028). She is supervised by Dr. Karla Caballero, Licensed Marriage and Family Therapist.





Sarah Moehrig is a Licensed Psychological Associate who has a MS in Clinical Psychology. She offers assessment and psychotherapy services in the Victoria, TX area for children, adolescents, and adults. Her clinical interests include assessment and treatment of Autism, ADHD, depression, anxiety, and other disorders.

Follow Mrs. Moehrig on Facebook at

Learn more about Mrs. Moehrig through her Psychology Today profile at


Ashlyn Patek-Steffek is a Licensed Professional Counselor Associate at our Victoria clinic. She graduated from University of Houston-Victoria with a Masters of Science in Professional Counseling in 2021. Mrs. Patek-Steffek provides psychotherapy services for children, adolescents, and adults. Her clinical interests include anxiety, depression, and relationship concerns.

Mrs. Patek-Steffek is supervised by Brenda Whitfield, LPC-S. 

Learn more about Mrs. Patek-Steffek through her Psychology Today at


Vicky Schomberg - LPC Associate 

Vicky Schomberg is a licensed LPC-Associate at the Victoria office. She graduated from Liberty University with a Master of Arts in Clinical Mental Health Counseling. She works with children, adolescents, and adults. Her purpose has been to help individuals improve coping skills and increase their personal well-being to navigate a healthier outlook for their life. Her clinical interests are ADHD, behavioral issues, anxiety, depression, and grief.

Vicky Schomberg is supervised by Lane Johnson, LPC-S.



Tina Page

Tina is our staff administrative assistant based out of our Victoria office. Tina comes to Mission Psychology with a background in both law enforcement and education. She is currently completing a bachelor's degree in Psychology at UHV. 

 Tina manages scheduling, referrals, and other administrative duties for both the San Antonio and Victoria offices.  Mission Psychology is lucky to have her on our team!


Doris has worked in behavioral health administration for over 20 years, and is passionate about advocating for the importance of mental health care. At Mission Psychology Doris handles scheduling, insurance verification, and a huge variety of administrative tasks for both the San Antonio and Victoria offices. Doris also works in the front office of the San Antonio office and is often the first friendly face our clientele see when they come in. We're super grateful to have her on our team.


For information on how to verify a license, please go to For information on how to file a complaint, please go to the following page:

bottom of page