Our Providers

Dr. Taylor Sorenson is a Clinical & Sport Psychologist and is the founder of both Advantage Psychology and Mental Performance Center & L.A. Psychological Assessment. She received her doctoral degree in Clinical Psychology from California Lutheran University and completed her doctoral internship at the University of Oklahoma. While at the University of Oklahoma she received training in their athletic department’s, Psychological Resources for OU Student-Athletes. She completed her post-doctoral training at a private practice in Norman, Oklahoma, under the supervision of Dr. Cody Commander. Within a year she became the Clinic Director of the practice where she oversaw the site's doctoral interns through the internship training program (Oklahoma Sport Psychology Consortium), worked with individual sport and performance clients and managed the psychological assessment side of the practice. She is proud and excited to bring her skills in and passion for psychological assessment and sport and performance psychology back home to Los Angeles.
 
Her areas of clinical focus include psychological testing, sport psychology, performance psychology, anxiety disorders, ADHD and learning disorders, and mood disorders. She has experience working with athletes ranging in age and ability level from elementary school athletes to elite level athletes.
 
When she isn’t in the office, she enjoys attending athletic events, spending time with her family and friends, quick trips to Disneyland, and hanging out with our official office mascot, Olive.

Dr. Sonali Wason is a licensed clinical and sport psychologist and co-founder of Advantage Psychology and Mental Performance Center. Additionally, she is one of the creators of the Competitive Advantage Training Program.

At this time Dr. Wason is serving as Assistant Director of Sport Psychology for Athletics and Clinical Assistant Professor in the Department of Psychiatry and Behavioral Sciences at Stanford University and is unable to take on new clients.
 
She received her Bachelor of Arts degree in Psychology from Stony Brook University in Stony Brook, New York (2013) and graduated from Azusa Pacific University with her doctorate in Clinical Psychology (2018).

Dr. Wason completed her doctoral internship training at The University of Oklahoma, where she began specializing in trauma treatment, sport psychology, and focusing on clinical intervention for the college/graduate student and student-athlete client population. She then completed a  post-doctoral fellowship at California Lutheran University specializing in college/graduate student mental health and trauma work and a second post-doctoral fellowship with University of Southern California Athletics specializing in sport psychology and athlete mental health.
 
Dr. Wason works with with high-school, collegiate and professional athletes in areas related to mental performance, performance anxiety, team/coach consultation, and improving team culture. Her therapeutic approach is grounded in multicultural humility, sociopolitical awareness, and evidence-based practices. Her clinical and research interests include: trauma recovery, family-of-origin concerns, sport psychology, athletic identity, recovering from an athletic injury, performance enhancement, creating healthy team dynamics, transition out of sport, and providing therapeutic services to people of color.

When she isn’t in the office, she enjoys being active, spending time with friends and family, crafting, and relaxing poolside!

Dr. Shauna Marsh is a clinical psychologist with Advantage PMPC.  She earned her doctorate degree in Clinical Psychology from California Lutheran University and completed her pre-doctoral internship with Kern Behavioral Health and Recovery Services.  While her university may be affiliated with a specific religion, Dr. Marsh is welcoming of any and all religious and spiritual backgrounds.
 
She has worked in the clinical setting since 2013 within various sites including community mental health, juvenile justice, elementary and middle schools, and with those within the legal system.  Her areas of clinical focus are with children and adolescents, forensic-involved individuals, specifically utilizing Cognitive Behavioral Therapy (CBT), Dialectical Behavioral Therapy (DBT), and Acceptance Commitment Therapy (ACT) skills and modalities.  Additionally, she maintains a lens of being trauma-informed, culturally sensitive, and identity-affirming.  Dr. Marsh has extensive experience working with a variety of symptoms, including: rapid mood changes, emotional sensitivity, concentration/attention concerns, anxiety, depression, self-harming behaviors, obsessive thinking, and impulsivity. 
 
Dr. Marsh considers herself a lover of coffee, nature, and all living beings.  She is often found geeking out over rare indoor plants and figuring out how to grow tomatoes.  She is passionate about social justice and advocating for those in need.

Dr. Jon Fledzinskas received his BA in Psychology from California State University, Channel Islands in Camarillo, CA, and then completed both his Masters and Doctorate in Clinical Psychology at California Lutheran University in 2020.

Dr. Fledzinskas has predominantly worked with adolescents and adults at a variety of centers. His formal training while in graduate school found him at several places practicing clinical psychology, including a community counseling clinic, a family medicine center, and an undergraduate college counseling center. He eventually went to Norman, OK in 2019 as part of the inaugural class at the Oklahoma Sport Psychology Consortium, where he worked at two separate sites: Psychological Resources for OU Student-Athletes (PROS) at the University of Oklahoma and Commander Counseling and Wellness. During his internship year, he accrued extensive experience delivering mental skills training, counseling, and psychological testing with many different Division I student-athletes at OU and general population clients in the Norman area. For his post-doctoral training in 2020, he remained working at Commander Counseling and Wellness and continued to provide mental skills training, counseling services, and psychological testing with children, adolescents, and adults in Norman and other surrounding areas.

Dr. Fledzinskas utilizes a client-centered, acceptance-based approach in therapy. He focuses on his clients’ strengths to help them develop a working relationship with their minds and emotions, assisting them in understanding what change they want to create in their lives and to then work toward their goals. Dr. Fledzinskas seeks to empower his clients and guide them in navigating their life’s challenges and help them find meaning and purpose in their daily living.

During his downtime, he enjoys spending time with his partner, family, and friends, playing competitive esports online, playing pick-up basketball, and reading a variety of books involving clinical and sport psychology concepts and ideas!

Olive is Advantage Psychology & Mental Performance Center’s official office mascot. She is soft, cuddly, and sweet as pie. Miss Olive has what is called exotropia, which is when one or both of the eyes turn outward (in her case, both), but she embraces her differences and has all the confidence in the world! She is a Maltipoo and is hypoallergenic.