Team Members


Joella Williams is the Executive VP of Operations at Brainstim Centers. She holds a Bachelor’s Degree in Public Relations for the Performing Arts with a minor in Music Education from the University of Nebraska-Lincoln, and completed graduate courses in the Music Therapy and Master’s of Public Administration programs from California State University Northridge. Joella’s unique educational experiences in both music and business have afforded her the opportunity to be both business savvy while having direct understanding of the patient process. Joella has been instrumental in building BrainStim Centers from its inception and is excited about observing its patient progress using TMS treatments. Joella occasionally performs on a variety of musical instruments. However, she is also a beloved author of a children’s book series that explains how to read music using rhyming bedtime stories.   


Sonja Hillman Suchy, SHRM-SCP is Director of Human Resources and Patient Communication with BrainStim Centers. She is very likely to be your first point of contact and would like you to know that she is committed to supporting the health and wellness of our community. Sonja has worked as a consultant in human resources and leadership for years since managing banks in Washington D.C. When she was younger, she lived in Paris, attended U.C. Berkeley, taught middle school science and English and had a business in design work. Now, she volunteers her time to her Girl Scout Troop and bakes copious amounts of sourdough. She looks forward to working with you throughout your healthcare journey.


Crystal Martinez is a lead TMS Specialist. Crystal has had experience working in the medical field first as a patient care technician then in perioperative services. She is currently working on her Bachelor’s degree in Nutritional Science, and is interested in ensuring patients are taken care of so they can function at their very best self. She is adept in multitasking with patient care and managing all aspects of office management such as billing, scheduling, and assisting with insurance inquiries. Crystal has three lovely children and spends her time overseeing their education and extracurricular activities particularly during this time of home-schooling during Covid-19. Because of these circumstances, Crystal shines in her ability to be extremely patient yet direct and will definitely guide you to a positive outcome on your own health journey.


Aleksandra Borowska is a TMS and Billing Specialist  at BrainStim Centers.  Alex is originally from Poland and moved to Los Angeles six years ago. She earned her Bachelor’s degree in German Philology, a history of languages and cultures, from Breslau University in Poland. Recently she received her Bachelor of Arts degree in Psychology from California State University Northridge. Aleksandra has had training in both the hospital setting as a nursing assistant in Germany, and while studying in the United States, she worked as a childcare specialist in Los Angeles. Alex speaks several languages and enjoys being in nature, hiking, and traveling.




Christy Vasquez is the newest TMS Specialist located in our Encino office. She currently works as an office manager in Dr. Liker’s practice and has experience in providing compassionate and enthusiastic customer service, uniquely based to every patient she comes across. With the addition of TMS treatment, Christy has taken an interest in learning how to administer TMS to qualified patients. Christy has a background in Healthcare Management and is currently working on her Bachelor’s of Arts degree which directly correlates with her desire to understand more about TMS patients. She also enjoys hobbies such as hiking and cooking in her spare time.

Our Locations

Choose your preferred location