We understand when you are suffering from neurological challenges how difficult it can be just to navigate the normal things in life.
Our practice has been designed with that understanding and we are here to help
Dr. Glen Zielinski, DC, DACNB, FACFN, CBIS
Glen Zielinski is a Chiropractic Physician and Board Certified Functional Neurologist.
He graduated Suma Cum Laude from Parker College of Chiropractic in Dallas, Texas. He was Valedictorian of his class in September, 2000, and received numerous awards including the largest scholarship in the chiropractic profession.
He completed his neurology training with the Carrick Institute for Clinical Neuroscience, graduated first in his class, and became board certified as a Chiropractic Neurologist by the American Chiropractic Neurology Board in 2003. He was immediately appointed as an Assistant Professor of Neurology with the Carrick Institute.
He was awarded a fellowship from the American College of Functional Neurology in 2010. He is fellowship trained in Traumatic Brain Injury Rehabilitation, Vestibular Rehabilitation, Movement Disorder Rehabilitation, Childhood Neurodevelopmental Disorder Rehabilitation, and Clinical Neurochemistry.
He has lectured for thousands of hours on Functional Neurology to chiropractic, medical, osteopathic, and naturopathic physicians throughout North America and Europe. He has qualified hundreds of doctors throughout the world to sit for board examination in Functional Neurology.
He has published on mechanisms of post-concussion syndrome. He is a member of the Carrick Institute’s Institutional Review Board, and helps guide international research in the functional neurology field.
He continues to lecture throughout the country on functional management of neurological, neuropsychiatric, and autoimmune disorders.
He is a board member of the Brain Injury Alliance of Oregon, and has been the keynote speaker at the BIAOR conference from 2016-2020.
He spearheaded a legislative project that resulted in Functional Neurology being coded into the chiropractic scope of practice in Oregon. His testimony in the Oregon Senate helped facilitate passage of legislation allowing chiropractic physicians to authorize return to play following concussions.
He was honored as Neurologist of the Year for 2014 by the International Association of Functional Neurology and Rehabilitation, the highest award in the Functional Neurology profession. He was honored as Educator of the Year in 2019 and Chiropractor of the Year in 2020 by the Oregon Chiropractic Association.
He founded Northwest Functional Neurology in 2006.
His practice focuses on severe traumatic brain injuries, post-concussion syndrome, movement disorders, disorders of gait and balance, and disorders of childhood neurological development.
Patients travel from all over the world to have Dr. Zielinski attend to their care. People that live down the street regularly share his waiting room with people from Norway, Australia, and all points in between.
He has helped celebrity entertainers and musicians, professional athletes, Olympic Gold Medalists, and World Champions recover from neurological injuries and maximize their performance.
His work was recently featured in the Netflix series Afflicted, which focused on sufferers of poorly-defined chronic diseases.
He splits his (alleged) spare time between activities as a musician, martial artist, winemaker, and fending off sneak attacks from his children.
DR. JEFFREY MCNALLY, DC, DACNB
Dr. Jeff graduated Magna Cum Laude with his Doctorate in Chiropractic from Life University in Atlanta, Georgia, where he was the recipient of the prestigious Contemporary Scientific Paradigms Award.
He received his neurology training with the Carrick Institute. After completing his internship at the Carrick Brain Center in Atlanta, he pursued a residency in neurology at Cerebrum Health Centers.
He has also received advanced certification in Applied Kinesiology.
He moved to Portland in 2016 to work with Dr. Zielinski and join the Northwest Functional Neurology team.
His work on treating frozen shoulder a balance disorder with Functional Neurological methodologies was published in the prominent journal Frontiers in Neuroscience.
He has a passion for the treatment of traumatic brain injury, post-concussion syndrome, dizziness and balance disorders, and post-traumatic headaches. He also focuses on using Functional Neurology for the optimization of athletic performance.
He hails from the Philadelphia, Pennsylvania area, and completed his Bachelors of Natural Science degree at Indiana University of Pennsylvania.
He is a former athlete, and competed in baseball, football, and karate. He still enjoys working out, hiking, snowboarding, and yelling at his TV while watching sports.
DR. RACHEL FRONTAIN, DC, DACNB
Dr. Rachel graduated Cum Laude with a Doctorate degree in Chiropractic and a
Bachelor of Science in Human Biology from the University of Western States in Portland, OR in 2017.
During her time in school, she attended countless postgraduate courses in Functional Neurology, as well as becoming certified in Active Release and Webster Techniques.
While still a student she regularly lobbied in Washington, D.C. to increase patient access to chiropractic care.
Upon completing her clinical internship at Northwest Functional Neurology, she joined
the team as a clinical associate in early 2018.
She became a board-certified
chiropractic neurologist in 2019. She has a passion for treating children using functional
She grew up in Saskatoon, Canada, and graduated from the University of
Saskatchewan in 2015.
Prior to chiropractic school, she traveled to Bali where she earned her 200 hour Registered Yoga Teacher certification.
In her free time, you might catch her snowboarding, swinging kettlebells, practicing
yoga, singing in her car or studying neurology while drinking coffee anywhere and everywhere around Portland.
Dr. Mehul received his Doctorate in Chiropractic in 2015 from Life University in Atlanta, Georgia. While at Life University, he completed an internship at the Georgia Chiropractic Neurology Center. He received his postgraduate neurology training through the Carrick Institute for Clinical Neuroscience, and earned diplomate certification from the American Chiropractic Neurology Board in 2016.
After working in several integrated practices and chiropractic neurology clinics in New York and Portland, he joined the Northwest Functional Neurology team in 2020.
His work on post-stroke rehabilitation using functional neurology protocols was highlighted in a case study in the Interdisciplinary Association of Functional Neurosciences and Rehabilitation journal in 2015.
A native of Baltimore, Maryland, Mehul earned undergraduate degrees from the University of Rochester and the State University of New York: College at Brockport, where he graduated summa cum laude in exercise physiology. He has been recognized as a Certified Strength and Conditioning Specialist by the National Strength and Conditioning Association, and as a Certified Exercise Physiologist by the American College of Sports Medicine. He enjoys helping people struggling with movement disorders and neuroimmunological challenges.
In his spare time, he enjoys composing short stories, developing his piano and guitar skills, and extolling the virtues of Bruce Springsteen to anyone who will listen.
DR. RUSS MARGACH, DC
Dr. Russ graduated Cum Laude with his Doctor of Chiropractic degree from the University of Western States.
He has practiced in Portland, Oregon for approximately 25 years.
His opportunity to pursue post-doctoral Chiropractic Functional Neurology training from Dr. Zielinski through the Carrick Institute came in 2010.
Following this, Dr. Russ pursued additional sub-specialty neurology training in Childhood Developmental Disorders and Traumatic Brain Injury Diagnosis and Rehabilitation.
He is currently a Board Eligible Functional Neurologist with the American Chiropractic Neurology Board and is eligible for Fellowship status with the American College of Functional Neurology, the American Board of Brain Injury Rehabilitation, and the American Board of Childhood Developmental Disorders.
He has served as a review consultant with the Australasian Academy of Functional Neurology.
He is the principal author of the state of Oregon’s Board of Chiropractic Examiner’s white paper establishing functional neurology standards in Oregon.
He was the requested author of “Chiropractic Functional Neurology: An Introduction” by the journal Integrative Medicine: A Clinician’s Journal for an issue featuring functional neurology case studies.
He is also a research peer-reviewer for the Journal of the American Osteopathic Association, and for the Journal of Clinical Biomechanics.
He completed a 6-month internship at Northwest Functional Neurology in 2015 and was invited to join as a Staff Clinician in 2016.
SHAUNA HAHN, MS, PMHNP, CBIS
Shauna hails from Saskatchewan, Canada. She is a Plains Cree Indian and a member of the George Gordon First Nation.
She graduated from Simon Fraser University in British Columbia, Canada in 1996.
She was admitted to the prestigious Direct Entry Nurse Practitioner program at Oregon Health and Science University in 2003.
She graduated as a Psychiatric Mental Health Nurse Practitioner and was awarded the Dorothy L Johnson Award for Creativity, Innovation, and Insight in Nursing.
In 2011, Shauna became a member of the National Health Service Corps for her work as a lead clinician at Central City Concern, a busy downtown Portland community mental health practice.
She has extensive experience in treating patients with the highest psychiatric complexity. Her patients often suffered from quad-morbidity: severe mental illness, serious medical co-morbidities, trauma and substance use, and houselessness.
Her work at the Federally Qualified Health Center meant that she was always busy, and she provided over 24,000 individual patient encounters in her 13 years at CCC.
She specializes in the treatment of psychiatric conditions secondary to traumatic brain injuries, is a Certified Brain Injury specialist.
She regularly lectures on the diagnosis and treatment of traumatic brain injuries at professional conferences.
She trained with renowned local community psychiatrist Dr. Phil Shapiro and is well versed in his Healing Power model, which emphasizes spiritual solutions to life’s painful problems. She bases her Traumatic Brain Injury support group work on this model.
Shauna offers a functional psychiatry perspective, assessing all of the underlying neurological, metabolic, immune, and nutritional factors that underly psychiatric conditions.
She seeks to uncover the root of mental health problems and strives to treat the cause of the problem rather than simply masking symptoms.
Her goal is to treat your condition by taking the most scientific and holistic approach possible.
Shauna is excited to bring her expertise in NeuroStar Transcranial Magnetic Stimulation to Northwest Functional Neurology.
Neuromodulation is the new frontier in psychiatry and offers exciting and proven results for people with post-concussion syndrome, vertigo, migraines, depression, anxiety, post-traumatic stress disorder, chronic pain, OCD and other disorders.
She is an avid dog lover, winemaker, and enjoys stand up paddleboarding, reading, live music, and meditation.
In her role as Rehabilitation Coordinator, Kaitlyn helps you and our rehabilitation team guide you along every step of your journey toward NeuroRestoration.
Kaitlyn completed her undergraduate degree at Western Oregon University in Psychology and Sports Leadership.
She then continued on to coach Track and Field and Cross Country at the collegiate level where she coached four athletes to the National D2 Championships.
From there she was recruited to work at the Nike World Headquarters as a running expert and social media specialist.
After wanting to branch out of the corporate world, she moved into personal training with an ACE certification.
She then found an opportunity to move into her position as Rehabilitation Specialist at Northwest Functional Neurology after shadowing at the Clinic.
She loves building relationships with patients and seeing their progress and healing along the way. She became our Rehabilitation Coordinator in 2019.
Outside of work she enjoys running, exploring the outdoors, surfing, and traveling.
In her role as Rehabilitation Specialist, Sam helps guide you on the path to NeuroRestoration.
Samantha obtained her eduction through Columbia Southern University in Business administration and Sports Management. Prior to joining our team, Samantha had over 8 years experience in the medical field, including work as a chiropractic assistant. She is a certified personal trainer, and has a passion for nutrition, sports performance and rehabilitative therapy, which led her to our team today.
In her free time, she enjoys bouldering, spending time with her kittens, and cooking for family and friends.
In her role as Rehabilitation Specialist, Marisa helps guide you on the path to NeuroRestoration.
Marisa is a certified Personal Trainer and also a certified Chiropractic Assistant. Prior to joining our team Marisa worked as a personal trainer while simultaneously working as an event coordinator for Nike World Headquarters. After deciding to branch out and gain experience in healthcare, she found the opportunity to move to her position as Rehab Technician at Northwest Functional Neurology. She continues to develop her passion for learning, patient care, science, health, and rehabilitative therapy.
In her free time, she enjoys going on hikes, playing her guitar, and spending time with family and friends.
In her role as Diagnostic Technician, Samantha helps us gather all the hard data on your nervous system that we use to design your unique NeuroRestoration Program.
Samantha has a background as a personal trainer and professional athlete. She holds the highest certification for personal training through the National Academy of Sports Medicine. Additionally, Samantha holds multiple certifications for stand-up paddle boarding instruction.
Prior to joining Northwest Functional Neurology, Samantha was a professional paddler, personal trainer, and Development Director for Salty Dog Paddle. She has been named to the Thumbtack Top 10 Personal Trainer List, and had a storied career as a professional athlete, wining multiple medals and podium placements. She enjoys paddling, personal training, paddling, and possibly other things as well.
Alex graduated from Oregon State University’s Public Health program with a Bachelor of Science in Healthcare Management and Policy.
Before joining our team, Alex worked as an intern at Integrity Billing and Consulting where he gained experience in the billing and provider credentialing side of healthcare.
He now works as the Office Manager here at Northwest Functional Neurology where he provides administrative support for our fantastic team.
Alex hopes to continue growing as a manager by bringing structure and smoother workflow to the clinic.
During his free time, he enjoys surfing, staying active, and expressing his creativity.