Click below to meet our doctors, or scroll down to meet the staff.
Dr. Terry Weyman
Clinic Director, Doctor of Chiropractic, Certified Chiropractic Sports Practitioner, Chiropractic Sports Institute
Dr. Terry Weyman is a nationally and internationally recognized sports chiropractor with more than 36 years of clinical leadership and experience in human performance, sports medicine, and injury management. Based in Southern California, he has served as Clinic Director of Chiropractic Sports Institute for over three decades, helping build one of the region’s most respected performance-driven practices.
Dr. Weyman earned his Doctor of Chiropractic degree from Cleveland Chiropractic College–Los Angeles and holds his Certified Chiropractic Sports Physician (CCSP) credential. He has completed advanced sports medicine training, including a Sports Medicine Internship at the U.S. Olympic Training Center, and was selected by the United States Olympic Committee to serve as Team USA Chiropractor at the World University Games.
His career includes leadership roles as Chief Medical Director for multiple professional and elite amateur athletic events, as well as service as Team Chiropractor for national and international teams, including Olympic-level alpine skiing and elite cycling programs.
In addition to his clinical leadership, Dr. Weyman is deeply committed to education and mentorship, having served as a post-graduate faculty member and instructor for advanced sports chiropractic programs nationwide. He is the author of more than 20 publications, magazine columns, and two book chapters, and continues to advance evidence-based, performance-focused care for athletes and active individuals at every stage of life.
Currently, Dr. Weyman works closely with Pepperdine University Athletics, collaborating with athletic trainers to oversee the care and performance of all athletic teams. He is also a sought-after lecturer, presenting nationally and internationally on the role of chiropractic care in sports-related injuries, performance optimization, and long-term athlete health.
Dr. Aaron Schneider
Doctor of Chiropractic, Chiropractic Sports Institute
Dr. Aaron Schneider is a Southern California native and received his doctorate from Palmer College of Chiropractic in San Jose. Since graduating in 2017, he has practiced in several clinics in California, honing his chiropractic skills and getting training in various techniques and practice styles. Prior to chiropractic school he was the rehab specialist here at CSI and now he is back where he started.
Dr. Aaron has a particular love for working with the head and the feet (the two ends of the body), and specializes in TMJ dysfunction, headaches, cranial work and anything extremities. He believes that by restoring the natural motion of ALL the joints in the body, and thus restoring the ideal communication between the brain and the body, it is able to heal itself and thrive. Knowing this, he truly works from head to toe to make sure your body is moving as efficiently as possible. And if you spend enough time with him you’ll soon realize that he not only treats patients with this philosophy, he lives it.
Dr. Vishal Thakral, D.O.
Doctor of Osteopathic Medicine
Dr. Vishal Thakral is double board certified in Physical Medicine and Rehabilitation and Sports Medicine with a subspecialty in Musculoskeletal Sonography. Dr. Thakral specializes in musculoskeletal and orthopedic injuries related to the joints and spine. Dr. Thakral’s medical interests include sports medicine utilizing musculoskeletal ultrasound-guided procedures to perform regenerative treatments for all joints including the hand, wrist, pelvis, shoulder, knee, hip, foot, ankle, and spine injuries.
After earning his medical degree from West Virginia School of Osteopathic Medicine, Dr. Thakral completed a residency in Physical Medicine and Rehabilitation at The Johns Hopkins Hospital. U.S. News ranked John Hopkins as one of the top five hospitals in the nation. Following his residency, Dr. Thakral completed two fellowships focusing on orthobiologics integrating regenerative therapies in treating diverse orthopedic conditions.
Dr. Thakral’s mission is to ensure patients are on the correct path of treatment whether that be conservative options first or identifying the correct pain-generating source before needed surgery and the recovery that follows. Part of Dr. Thakral’s goal is to help patients understand all the available options for them to be star advocates for themselves and to take control of their health. He also serves as a Clinical Assistant Professor at Western University teaching aspiring physicians about interventional orthopedics.
Luka Mentzer, M.S.
Exercise/ Corrective Therapist, Chiropractic Sports Institute
Luka Mentzer has been an Exercise Specialist at CSI since 2018. He has a Bachelor’s Degree in Exercise Science, and a Master’s Degree in Exercise Physiology. Throughout Luka’s academic career, he has had various internships and work experiences that provided him the opportunity to work with diverse populations. He worked in CSUN’s motor development lab to help create and implement exercise programs for young children, he interned at Proactive Sports Performance where he worked with professional athletes, and he was the exercise director for a public health community exercise program where he created exercise programs for people with diabetes and those who were high risk for developing it. He also has a certification from Titleist Performance Institute for golf mechanics. While earning his master’s degree, he was concurrently teaching exercise physiology at CSUN, and was a guest speaker at George Washington University to promote the field of public health. Luka’s overall goal is to help individuals improve their movement capabilities through exercise and a healthy lifestyle.
Michele Weyman
Corporate Office Manager, Billing Specialist, Chiropractic Sports Institute 
Michele serves as the Office Manager at Chiropractic Sports Institute and has been a cornerstone of the organization since 2004. She holds a Bachelor of Science degree in Psychology and brings more than three decades of experience within the chiropractic profession, combining operational leadership with a deep understanding of patient-centered care.
Known for her exceptional organizational skills and attention to detail, Michele plays a key role in maintaining the efficiency and integrity of daily operations. She is well-versed in a broad spectrum of chiropractic care, from pediatric patients to high-level athletes, and is deeply committed to creating a positive, welcoming experience for every individual who walks through the doors.
Outside of the clinic, Michele enjoys spending time with her husband, Dr. Terry Weyman, their two sons, and their dogs. Her passion for chiropractic care, commitment to patient relationships, and genuine warmth are evident in every interaction—often greeting patients with both a smile and a laugh.
Mikaella Villepigue
Front Office Manager, Chiropractic Sports Institute
Mikaella is a licensed esthetician with more than 18 years experience. After 10 years, she has come back to rejoin our family here at CSI! During that time, she played a major role in opening and running a successful boot camp gym. While there, she was able to share her passion for holistic, organic body care, and help people make healthy choices to get back in shape.
In her spare time, she enjoys reading, crossword puzzles, hiking and especially cooking and baking for her family and friends.
If you have any questions regarding our office or your visit, please do not hesitate to call and ask for Mikaella. She is dedicated to making your experience with CSI a pleasant one.
Chelsea Ruggiero
Chiropractic Assistant, Chiropractic Sports Institute
Chelsea is a 2018 graduate of Newbury Park High School. While attending high school, she worked as a student trainer in the training room helping athletes at their sporting events for all 4 years. During her senior year, she would assist at CSI’s injury clinics for High School athletics, showcasing her love of sports, and healing. She was hired on at CSI in 2018 as a chiropractic assistant and administers certain modalities and therapies to patients.
DUG
CSI Therapy Dog
Dug has brought many smiles to patients faces and been requested to stay in treatment rooms if possible. He has made many appearances in Dr. Terry’s Instagram feed for his podcast, so make sure you check him out on ‘Crackin’ Backs Podcast’.
If you want to meet the happiest dog ever, come by and give some attention to Dug!
FINN
CSI Therapy Pup
Finn, our 4 year old Golden Retriever is full of love! Come say hi and give him a pet or have him hang with you during treatment. He is calm and gentle and loves to “work”.
