Our Board
Texas psychologists have worked toward prescriptive authority for more than twenty-five years. The first iteration of Texas RxP formed in 2000. In the years since, psychologists across the state have joined the Texas Psychological Association's Division of Psychopharmacology, a growing group that anchors this effort. Its members contribute to legislative work in Austin and in communities across Texas.
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Cheryl L. Hall, Ph.D. **
Current President/Chair
2012–Current
Lubbock CountyDr. Hall is the Chair of the Psychopharmacology (RxP) Division for TPA. She is a clinical psychologist in independent practice in Lubbock. For 29 years, she has provided psychotherapy and psychological evaluations. She is a prescribing psychologist at Looking Glass RxP, based in Las Cruces, New Mexico, where she provides services to children and adults from all over the state. Dr. Hall has also worked as a staff psychologist for a residential treatment center for children, as a consultant conducting evaluations in public schools, and as an adjunct professor for Texas Tech University.
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Carol A. Grothues, Ph.D. *
Hays County
Dr. Grothues is a licensed psychologist in private practice in Dripping Springs, Texas. She has been active in the Texas Psychological Association for over 25 years and was TPA President in 2017. She serves as Secretary-Treasurer of the TPA Division of Psychopharmacology and has been active in seeking prescriptive authority for psychologists in Texas since 2001.
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Melody Moore, Ph.D. **
Harris County
Dr. Melody Moore is a licensed clinical psychologist in Texas and an integrative psychologist who takes a holistic approach to care, considering the connection between psychological, physical, emotional, and social well-being. With more than 30 years of experience, she provides psychological assessment, psychotherapy, and consultation for diverse populations. She collaborates with physicians and other prescribing professionals, offering medication recommendations and conducting psychological assessments to clarify diagnoses and support appropriate prescribing and individualized treatment planning.
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Joycelyn Williams Thomas, Ph.D., MSCP *
Gregg County
Dr. Joycelyn Williams Thomas is a Licensed Psychologist and has earned a post-doctoral Master of Science in Clinical Psychopharmacology. She was elected to be the 2027 President of the Texas Psychological Assocation. She is in private practice as the owner of Spiritual and Behavioral Health Consultants, LLC. While her current practice is general in focus, she has specialized in providing psychological and forensic evaluations and also working with individuals and families who have experienced abuse, trauma, and serious mental illness. She is committed to providing services to those in need, and currently advocates for and provides services in rural Texas counties. She is also working toward becoming a Medical Psychologist in Louisiana (she has passed the PEP and will soon start supervised medical experiences). She is a dedicated and active leader in mental health advocacy having served in TPA leadership roles for several years and has served as president of several local mental health associations, including the Fort Worth Area Psychological Association and the Houston Chapter of the Association of Black Psychologists. Dr. Williams Thomas has given presentations on both the state and national level. She is a sought after presenter on faith and mental health.
Dr Williams Thomas earned her Doctor of Philosophy in Counseling Psychology from the University of Houston, a post-doctoral Master of Science in Clinical Psychopharmacology from Alliant International University, a Master of Arts in Counseling from Sam Houston State University, and a Bachelor of Science in Child Development and Family Relationships from the University of Texas at Austin.
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Kari Leavell, Ph.D. *
Tarrant County
Dr. Kari Leavell is a licensed psychologist, the owner of Grapevine Psychology, and the 2026 President of the Texas Psychological Association. In addition to overseeing the daily operations of her practice, Dr.
Leavell provides professional consultation, therapy services, and clinical supervision. She earned her Bachelor’s degree from Texas A&M University, her Master’s and PhD in Counseling Psychology from the University of Southern Mississippi, and her MS in Clinical Psychopharmacology (MSCP) from Alliant International University.Dr. Leavell’s special interests include the science and psychology of sleep, the neurobiology of emotions, accepting insurance for increasing access-to-care, prescriptive authority for properly trained psychologists, and pioneering as a prescribing psychologist when Texas legislation allows.
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Alycia Bellah, Ph.D. *
Collin County
Dr. Bellah is a licensed clinical neuropsychologist, and the founder of Psychiatric Associates in McKinney, Texas, where she provides psychotherapy and neuropsychological assessments. Dr. Bellah has over 25 years of experience in clinical practice. She has also completed a postdoctoral master's degree in clinical psychopharmacology at Fairleigh Dickinson University. Before entering clinical practice, she conducted research at LSU Health Science Center in general medicine and oncology in Shreveport, Louisiana.
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Lynette Pujol, Ph.D. **
Bexar County
Dr. Pujol is a licensed clinical and prescribing psychologist and President of Lamplight MedPsych, PLLC in San Antonio. She provides prescriptive services via telehealth through a contract serving Active Duty Service Members throughout the country, including 4 Military Treatment Centers in TX. She is Deputy Director of the master in clinical psychopharmacology program at Fairleigh DIckinson University and the founding Vice-President of the American Board of Psychopharmacological Psychology. She is board certified in psychopharmacological psychology and a past president of the American Psychological Association Division 55 (Society for Prescribing Psychology).
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Elizabeth L. Richeson, Ph.D., M.S. PsyPharm*
El Paso County
Dr. Richeson is a clinical psychologist with a post-doctoral degree in psychopharmacology. She has a private practice in El Paso and previously worked with the Army in Seoul, Korea. She has lived in Korea, Thailand, Japan, and Micronesia, which has given her an opportunity to learn about diverse cultural communities.
While she has a general practice, she is considered a specialist in dating abuse prevention, eating disorders, and medical conditions, such as cancer, contributing to mental health decline. She is the Advisory Board Chair for the non-profit Jennifer Ann’s Group, educating and advocating to prevent dating abuse, and is the key volunteer for their annual fundraising event in El Paso.
Dr. Richeson has lectured across the United States, in London and Hungary, and is frequently requested to lecture on a wide variety of topics related to mental health, physical health, and dating violence to both lay and professional groups.
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James G. Underhill, Psy.D., M.P. **
Austin County
James G. Underhill, Psy.D. ,M.P. is an Austin based medical psychologist. Dr. Underhill maintains an active prescribing practice in Louisiana, a consultancy for the United Nations, and a lecturer position at New Mexico State University. At the invitation of the American Medical Association, he has co-authored the impairment guidelines for the nervous system, mental health disorder, “long Covid”, and musculoskeletal body systems.
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Ryan R. Cooper, Ph.D., J.D.
Lamar County
Dr. Cooper is a licensed clinical and neuropsychologist who directs a multi-state group practice. He has served in faculty and administrative roles in both undergraduate and graduate psychology programs for more than a decade. Dr. Cooper has been active in the Texas Psychological Association's Division of Psychopharmacology since approximately 2015, previously served on the Texas Psychological Association Board of Directors, and advocates for prescriptive authority for appropriately trained psychologists in Texas.
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Angelica Coumanova, Ph.D.
Tarrant County
Dr. Angelica Coumanova is a licensed psychologist and owner of Angel Psychology Services, PLLC, a private psychology practice in North Texas, where she provides psychotherapy and psychological assessment to children, adolescents, adults, and families. Her clinical work focuses on neurodivergent individuals and co-occurring mood concerns, as well as anxiety, depression, and emotional and behavioral concerns. Before entering private practice, Dr. Coumanova worked as a school psychologist, giving her a systems-based perspective on the barriers individuals and families can face when trying to access appropriate mental health care. She earned her PhD in School Psychology from the University of Northern Colorado, with a specialization in applied statistics, and is currently completing a master's degree in clinical psychopharmacology. She is passionate about expanding access to comprehensive mental health care for Texans and supporting the role psychologists can play in addressing gaps in behavioral health services.
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Maximino Salazar, Psy.D.
Travis County
Dr. Salazar is a licensed psychologist and founder of MSH Psychotherapy, PLLC in Austin, where he provides psychotherapy and psychological assessment in English and Spanish. He is currently completing a master's degree in clinical psychopharmacology at Fairleigh Dickinson University. Before entering clinical practice, he conducted neuroimaging research at UT Health Science Center San Antonio and also worked briefly as a study coordinator in clinical trials, coordinating with medical teams on research protocols.
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Caroline B. Williams, Ph.D., M.P. **
Kendall County
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* Indicates post-doctoral training in RxP
** Indicates completed training and current prescriptive authority in another state