• Phone: (760) 369-7166
  • dstyles@affiliatedps.com
Follow Us:

Our Doctors

Melody Bevens, MFT, LMFT

Provides therapeutic services for children, adolescents, adults and families.   Specializes in play therapy.

Julio Merlan, MSW, CCDVC, LCSW

Provides cognitive-behavioral therapeutic services to adults, adolescents, children, couples, and families as well as forensic services.

Alison S. Adler, LMFT, LPCC

My style is often warm, earthy, and direct.  I have worked as a Psychotherapist at institutes such as UCLA NPI and Matrix Institute.  Additionally, I am a Certified Grief Recovery Specialist.  Let’s work together!

Daniel O’Connell, MSW, LCSW

U.K. and U.S. trained, Daniel, is a Licensed Clinical Social Worker who has been in the field since 2003, assisting adults, children, and families experiencing complex themes that impact their lives. Daniel has worked as a community-based social worker and a therapist – providing a broad insight into the human condition that moves beyond traditional psychotherapy.

Adopting a humanist and existential perspective, Daniel believes that each person’s unique psychology is characterized by an attempt to create a life of meaning and to make sense of our shared experiences. Daniel is passionate about co-exploring how the search for purpose, self-acceptance, and empowerment is intertwined with themes of authenticity and spirituality within our lives.




Sharon M. Swigart, LMFT

Provides individual, family and couples therapy to adults, teens and children.  Certified in EMDR and Trauma Focused cognitive behavioral therapy.


Britney Vachon-LaGuardia, LCSW,

I have been practicing social work since 2012. She obtained a Bachelors Degree in Social Work from Cal State LA and a Masters Degree in Social Work from the University of Denver. Britney is a Licensed Clinical Social Worker and a certificated Animal-Assisted Social Worker. She has experience working with people in the LGBTQ community, those suffering from chronic illnesses (diabetes, kidney disease, HIV), individuals dealing with different levels of trauma, and children and families involved in the child welfare system. Britney operates from a solution-focused point of view and utilizes Cognitive Behavioral Therapy; focusing on strengths and learning positive coping skills. She looks forward to partnering with you to help you reach your goals!





Julie-Ann Tamminga, LMFT

Provides psychotherapy with compassion using a psychodynamic as well as a family system perspective treating individuals, couples, families, and children.  Certified EMDR.

Mark Charles, Licensed Psychologist

I truly believe that everyone has within themselves the strength and skills necessary to be happy and mental well; sometimes, however, life can put us through the wringer to the point where we lose track of our own unique abilities. My goal is to help you rediscover what makes you great and together find a way to get past the roadblocks and challenges. It’s typically not an easy process, but the hardest part tends to be reaching out for help.

Having worked with clients aged 7 to 70 who deal with fears, anxieties, anger, sadness, depression, grief, and trauma, the overriding factor leading to a successful outcome tends to be the development of a strong working connection that is based on trust, honesty, and the hope that things can get better.

To make that type of connection happen, you can expect from me:  dedication, a genuine desire to help, and evidence-based practices (particularly cognitive-behavioral therapies) mixed with my unique blend of humor, personality, and life experiences.  What is expected of you: It is hard to talk to someone you don’t know about really difficult stuff.  I get that.  All I can ask is that you give the process a chance.

Therapy is not meant to go on forever. Early on we will develop a treatment plan that is agreed upon by all parties involved, given the context and the presenting issue (s). You won’t always feel good at the end of a session, as finding that rainbow involves weathering at least one storm.