Meet The Instructors
At VestibularPT, we believe exceptional education begins with exceptional educators. Our instructor team comprises nationally recognized experts in vestibular and concussion rehabilitation, each bringing a wealth of clinical experience, academic knowledge, and teaching excellence to every course.
Led by Dr. Colleen Sleik, PT, DPT, NCS, GCS — a board-certified neurologic and geriatric clinical specialist — our faculty includes physical therapists, neuro-optometrists, and clinical educators who specialize in treating dizziness, BPPV, balance impairments, vestibular migraine, and post-concussion symptoms.
You’ll learn from instructors who actively treat patients, publish research, and mentor other clinicians. Each brings a unique clinical lens, whether it’s mastering canalith repositioning maneuvers like the Epley and Semont, applying gaze stabilization protocols, or utilizing tools such as infrared goggles, VOMS, and the IMPACT test in practice.
Our instructors are not just teachers — they’re passionate leaders who understand the fears and challenges PTs and OTs face when treating complex vestibular conditions. They break down intimidating topics and give you practical frameworks to confidently evaluate and treat your patients.
Whether you’re enrolling in a self-paced course or participating in our live, hybrid training programs, you’ll benefit from the insights and mentorship of instructors who are dedicated to your growth.
Explore our bios below and discover why therapists across the country trust VestibularPT for their continuing education in vestibular care.
Founder & CEO
Dr. Colleen Sleik PT, DPT, NCS, GCS
As a Doctor of Physical Therapy and Neurologic and Geriatric Clinical Specialist, Dr. Sleik specializes in treating patients with vestibular disorders and concussion. She has worked in a variety of settings over the years, including outpatient clinics, acute care, home health, skilled nursing facilities and private practice. She is excited to have the opportunity to support your journey in vestibular rehab and concussion management.
Concussion Specialist
Dr. Zachary Mestelle PT, DPT, OCS
As a Doctor of Physical Therapy and a residency-trained board certified Orthopedic Clinical Specialist, Dr. Mestelle's greatest passion is concussion management. He strives to instill the balance between high quality evidence-based information with pragmatic, experience, and application-based information in order to provide a well-rounded learning experience.
Orthopedic Specialist
Jack Cervantes PT, DPT, OCS
As a Doctor of Physical Therapy and a residency-trained board certified Orthopedic Clinical Specialist, Dr. Cervantes works at the University of Wisconsin Hospital and Clinics Health System. He has experience in advanced spine and general orthopedics and is growing a caseload of patients with autonomic dysfunction, concussion, and vestibular disorders. This course has allowed him to pursue his passion and career goal of educating current and future clinicians as a way to give back and advance the profession of physical therapy.
Neuro-Optometrist - Guest Instructor
Jacqueline Theis OD, FAAO, FNAP
Dr. Theis is a practicing optometrist, clinical researcher, international lecturer and author. She has extensive clinical experience in post-traumatic brain injury and neurologic visual dysfunctions including neuropathic eye pain, neurologic dry eye, cranial nerve palsies, oculomotor dysfunction, photophobia, visual processing, and visuo-vestibular symptoms. She is a guest instructor in Current Concepts in Concussion Management, sharing her expertise in effects of concussion on the visual system.
Neuropsychologist - Guest Instructor
Jesse Peterson PsyD
Dr. Peterson is a practicing neuropsychologist whose interest in concussions and cognition began while playing DIII college football at Lawrence University in Wisconsin when the team completed its cognitive “baseline testing” during preseason camp. Though a neuropsychological generalist, a large portion of Dr. Peterson’s current patients include individuals experiencing the subacute and chronic cognitive effects of traumatic brain injuries, including concussions.