Trisha S. Wollin Psychotherapist MSW, LCSW, RPT, SAC

In my 19 years of providing mental health therapy, I have strived to assist individuals to find elements of success in managing their emotions and behaviors on a day-to-day basis.  As a believer in effective communication, I develop a nurturing environment for individuals and families that involves enthusiasm, flexibility, accountability, and a willingness to change and adapt.

I hold a master’s degree in Social Work with a clinical emphasis from the University of Wisconsin-Milwaukee.  I am credentialed as a Licensed Clinical Social Worker, Registered Play Therapist, and a Substance Abuse Counselor.  As the owner of Applied Therapies and Wellness Center, S.C., my current practice focuses on a holistic approach of treating the mind, body, and spirit.  I incorporate the use of trauma-based techniques, play therapy, EMDR, theraplay, client centered, and cognitive behavioral techniques with individuals and children as young as 18 months.

Over the past 19 years, I have learned “in the trenches” how important change and adaption are to establishing consistent environments for individuals and families to thrive.  I have worked in a variety of settings including a community based residential facility, nursing homes, corrections, private practice, and as an adjunct instructor at a local college.  It is my belief that addressing concerns one step at a time yields powerful results for both individuals and families.


Heather Knuth Psychotherapist MS, LPC

Heather is a Licensed Professional Counselor  (LPC). Heather works with clients ages 3 and older, and has experience dealing with issues such as trauma, anxiety, depression, anger, self-esteem, and behavioral issues. Heather has an eclectic approach, using primarily Cognitive Behavioral Therapy (CBT) and Client-Centered techniques (depending on the particular client’s need), and can also do Play Therapy with younger children. She also co-facilitates Social Skills groups through the agency. Heather obtained her Bachelor’s Degree in Psychology from Carroll College in Waukesha in 2009. She went on to receive her Master’s Degree in Community Counseling from Concordia University of Wisconsin in 2012.


Toni Bartz, Psychotherapist MSW, APSW

Toni has 21 years of experience working with children, adolescents and families who have been in crisis.  She earned her master’s degree in social work with a focus on children and families from University of Wisconsin Milwaukee in 2004.  Toni is certified as an Advanced Practice Social Worker.

Toni’s experience includes working with adolescent females residing in a group home.  Toni also has experience of working with Child Protective Services as a supervisor.  She has experience working with children and adolescents that have been separated from their family of origin, in advocating for children and parents/guardians in court proceedings, supporting children and adolescents through the adoption process, and with children and adolescents involved in the juvenile justice system.

She incorporates the use of Play Therapy, Mindfulness, Cognitive Behavioral Therapy, Interpersonal Therapy, and Client-Centered Techniques when working with children and families, ages 4 years old through adulthood.


Sandra Hernandez, Psychotherapist MSW, APSW

Sandra has over 15 years of experience working with individuals, families, parents, teens, children, and birthing persons. Sandra has worked in various capacities in the education and social work field. She holds multiple licenses including Advanced Practice Social Worker, School Social Work License, Bilingual Education Teacher and Certified Doula. Sandra is bilingual in Spanish and English. She is culturally competent and practices through a trauma informed lens.

Sandra strives to work with clients through a strengths based perspective and with a solution focused mind-set, while working with clients to attain their goals for therapy. As a social worker, Sandra understands the multiple facets, unique qualities and experiences individuals come with. Sandra hopes to create a space for clients to feel safe, heard and understood. Sandra believes that It isn’t always about what you need to change, but rather being still enough to hear what your soul needs.


Sarah Clubb, Psychotherapist MSW, APSW

Sarah is a Certified Advanced Practice Social Worker who completed her internship at Applied Therapies and Wellness Center, S.C., in 2021.  She graduated with her bachelor’s degree and master’s degree in social work from the University of Wisconsin-Whitewater.

Sarah has experience providing therapy to children 4 years old and older, adolescents, adults, and families.  She has previous experience working as a case manager with adolescents and adults.  Sarah believes the incorporation of family dynamics, culture, and life experiences are essential for every therapy session.

Sara incorporates therapeutic techniques of Cognitive Behavioral Therapy (CBT), Client-Centered Therapy, and Play Therapy techniques as well as Trauma-Informed Care.  The techniques she incorporates are adapted to the needs of each client and family she works with.


Ashley Koehler Psychotherapist MSW, APSW

Taking care of our mental health is just as important as our physical health, and therapy can be a safe, healthy, and productive outlet for us as individuals, families, couples, (and so on and so forth) to grow, learn about, and help ourselves. As a Certified Advanced Practice Social Worker at Applied Therapies and Wellness Center, S.C., Ashley works with clients of all ages and diversities in a therapeutic setting.

Ashley holds a bachelor’s degree in Social Work with an emphasis in Child Welfare, with minor degrees in Psychology and Human Development from the University of Wisconsin-Green Bay.  Her master’s degree in Social Work has an emphasis of working with children and families, alongside certification for Trauma Informed Care from the University of Wisconsin-Milwaukee. She has a great interest and passion for working with children, adults, and families who have had the unfortunate experience of trauma in their lives as well as with the LGBTQ community.

Ashely’s therapeutic approaches are Cognitive Behavioral Therapy (CBT), Strengths Based Therapy Techniques, Play Therapy Techniques, Mindfulness Training Techniques, and Client Centered Techniques. Each treatment plan is carefully created to meet each client’s needs with attainable goals.


Alex Leonard, Psychotherapist Intern MSW

Alex is currently a graduate student at the University of Denver-Colorado working on acquiring her master’s in social work. She has been interning with Applied Therapies since Spring 2023.  She holds an undergraduate degree in Elementary Education from Central University in Pella, IA, and was a teacher for over 4 years. Alex has worked with children and adolescents for over 10 years as both an educator and counselor.

Before moving to Milwaukee in Spring 2023, Alex resided in Des Moines, IA, Alex worked as a Milieu Treatment Counselor at a residential treatment facility for children ages 10-18 for 3½ years. Through her experiences and continued education, she have built her skills and knowledge about behavioral, emotional, physical, and mental health treatment through a trauma-informed lens. Alex uses multiple therapeutic techniques to maintain a client-centered practice; including Cognitive Behavioral Therapy, Play Therapy, Dialectical Behavior Therapy, and Interpersonal Psychotherapy.

Alex’s main areas of experience are working with individuals who have or are currently experiencing depression, anxiety, traumatic events, behavioral issues, and substance use. Her goal is to develop obtainable treatment goals for each individual client’s needs and wants. She believes that therapy is most effective when clinicians and clients have a respectful and open therapeutic relationship, developed through both party’s efforts and hard work.


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