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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, postdoctoral fellows, and practicum students.


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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). Dr. Thompson is qualified to provide psychological services in many states under PSYPACT E.Passport Number 5646,


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 1/31/2025).



Dr. Kendall John is a Licensed Psychologist. 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 licensed by the Texas Behavioral Health Executive Council (License # 39567, expires 12/31/2025).  

Joshua Im, M.S. - Licensed Marriage and Family Therapy Associate

Joshua Im is a Licensed Marriage and Family Therapy Associate at the San Antonio office of Mission Psychology. He received his master’s degree in Marriage and Family Therapy at Our Lady of the Lake University. Joshua provides individual, couples, and family therapy
services. He has a passion for utilizing a collaborative approach in helping people with improving and enhancing their relationships while also discovering the strengths that each person has. His main clinical interests include marital conflict, relationship improvement, grief,
anxiety, trauma, and identity exploration.

Joshua is licensed by the Texas Behavioral Health Executive Council (License #204927, expires 02/29/2028). He is supervised by Dr. Fayed, Licensed Marriage and Family Therapist (License #204356) and offers a
session fee of $45.

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Erin Coggan, PsyD

Dr. Erin Coggan is a Postdoctoral Fellow at Mission Psychology. She received her Psy.D. in School Psychology at the University of Colorado, Denver. Her internship experience included working as a School Psychologist in West Jordan, Utah, providing therapy through Jordan School District Family Education Center and completing threat assessments. She has extensive training in working with children and adolescents who have experienced trauma, anxiety, depression, as well as behavioral difficulties. Dr. Coggan provides individual and family therapy as well as autism, ADHD, and learning disability assessment services to children, adolescents, and adults. 

Dr. Coggan is supervised by Dr. Russel Thompson. 



Eva De Los Santos

Eva is our staff administrative assistant .She has worked in the health care field for 15+ years. She has a strong background in billing, insurance verification and scheduling. We are so grateful to have her on the Mission Psychology team!

Doris Walker, Office Manager

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 office. 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:

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