Shannon Clark-Sienkiewicz

Shannon Clark-Sienkiewicz, PhD

Licensed Clinical Psychologist specializing in health, trauma, chronic illness, and relationships.
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Offers Telehealth
Online Payments
Accepting New


I'm here to help you grow but I respect the journey that got you here.

Dr. Clark-Sienkiewicz received her Ph.D. in Clinical Psychology from Wayne State University in 2019. She completed her internship at Henry Ford Hospital in Detroit, MI, and her Postdoctoral work at Arizona State University. She is a Licensed Psychologist in the states of Missouri (2021045663) and Utah (12016019-2501). During her graduate studies, she specialized in relationships and health. She is a published researcher in the field of Health Psychology. Specifically, she has studied treatments for chronic pain, health behavior change interventions, and the impact of relationships on health. Additionally, Dr. Clark-Sienkiewicz is trained in mindfulness-based approaches, cognitive-behavioral therapy, emotion-focused treatments, and can provide brief or ongoing services for adults suffering from a wide range of mental health concerns, including work and performance-related distress. Her work has been featured in the Journal of Clinical Psychology in Medical Settings, the Journal of Racial and Ethnic Health Disparities , The Journal of Pain , and in the book Social and interpersonal dynamics in pain: We don’t suffer alone (Chapter 13. Beyond Operant Theory of Observer Reinforcement of Pain Behavior). ---------- I practice on a platform that considers the impact of human rights violations on your mental health. I believe that an individual has a right to health care, including having a choice in the healthcare they receive. I believe that a history of oppressive systems impact the mental health of individuals. I believe that you have a right to choose how you express your identity, sexuality, and values so long as they do not infringe of the rights and safety of others. I view mental illness as a reaction to a system of individual and environmental factors. I will not ask you to control factors that are beyond your control. I will encourage growth and change while respecting the limitations of that change. I will not ask you to be ok with things that are not ok. I believe these are issues that impact every person - all humans. I will not shy away from relevant conversations on race, gender, sexual orientation, safety, and the environment as these topics are commonly intertwined with our mental health and our interactions with others.
Shannon Clark-Sienkiewicz, PhD
Licensed Clinical Psychologist


  • Anxiety
  • Depression
  • Trauma
  • Chronic Pain
  • Chronic Illness
  • Relationship Issues


  • Behavioral Therapy
  • Cognitive Behavioral Therapy (CBT)
  • Family/Marital Therapy
  • Acceptance and Commitment (ACT)
  • Dialectical (DBT)
  • Emotionally Focused
  • Experiential Therapy
  • Motivational Interviewing
  • Trauma Focused
  • Strength-Based

Insurance Accepted

  • Out of Pocket


  • Fee: $165


In-Person Office

7750 Clayton Rd. Suite 312
St. Louis, MO 63117-1341

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