Meet Dr. A
Dr. F. Blake Ambridge
D.C. | D.A.C.N.B. | N.D.
39 years. Thousands of patients. One consistent approach: find what's actually driving the problem, and address it completely.
The doctor who keeps looking
Most physicians are trained to match a symptom to a treatment. Dr. A was trained — and has spent four decades learning — to ask why.
Why is the nervous system not signaling correctly? Why is the immune system attacking its own tissue? Why does the pain persist when the injury has healed? Why do the labs come back normal when nothing feels normal?
These are the questions that conventional medicine often runs out of time for. They are the questions Dr. A starts with.
His approach brings together chiropractic neurology, functional medicine, and naturopathic care — three disciplines that are each demanding on their own, and that very few practitioners hold in combination. That combination allows him to look at the brain, the gut, the nervous system, hormones, immunity, structure, and metabolism at the same time, because in a complex case, the answer is almost never in just one of them.
Patients find Dr. A after years of searching. After the specialists, the medications, the procedures, and the appointments that produced more paperwork than answers. What they find when they sit down with him is someone who already understands the pattern — and knows what to do about it.
Where it started
Dr. Ambridge grew up in California and graduated from Brigham Young University before earning his Doctor of Chiropractic from the Los Angeles College of Chiropractic in 1987, cum laude, with the college's top honors and its President's Award.
Three internships followed, two of them in Europe. In Neuchâtel, Switzerland, he assisted and interned under Dr. Raymond W. Sandoz, D.C., and took the Swiss Chiropractic Association's courses at the Polyclinic in Bern. In Prague he served as a hospital case rounds evaluator while studying under Karel Lewit, M.D. and Vladimir Janda, M.D. — two physicians credited with the advances that shaped modern neurology, neurological rehabilitation and manual therapy.
Back home, five years of postdoctoral neurology training through a course sponsored by Logan College of Chiropractic led to board examinations and the Diplomate of the American Chiropractic Neurology Board. The pattern set early — go to the source, then keep going — has not changed in the thirty-nine years since.
Training and credentials
Each line below is a full course of study. Held together in one practitioner, they are what makes the Ambridge Approach possible.
Doctor of Chiropractic, Los Angeles College of Chiropractic, 1987
Graduated cum laude with the college's top honors and the President's Award, alongside recognition for leadership, service and academics.
Diplomate, American Chiropractic Neurology Board
Five years of postdoctoral neurology training, through a course sponsored by Logan College of Chiropractic, followed by the board examinations leading to the Diplomate.
Doctor of Naturopathic Medicine, 2019
Adding naturopathic medicine to his chiropractic neurology background was not a credential collection. It expanded what he can offer patients — specifically in restorative and regenerative therapies, hormone support, and chronic infection treatment — in ways that chiropractic neurology alone cannot reach.
Functional Medicine Certification, Kharrazian Institute, 2025
Advanced training in the metabolic, immune, and inflammatory mechanisms behind chronic disease.
Advanced certification in learning disabilities and behavioral disorders
Carrick Institute for Postdoctoral Education, which also took him to Grand Rounds in Oslo, Norway, evaluating advanced neurological cases alongside practitioners from around the world. Dr. A has worked with pediatric patients across a range of neurological and developmental concerns.
International training under Karel Lewit, M.D., Vladimir Janda, M.D. and Raymond W. Sandoz, D.C.
Three internships, two of them in Europe. Lewit, Janda and Sandoz are among the figures credited with shaping the modern practice of neurological rehabilitation and manual therapy, and Dr. A trained under all three directly — at the source of methods most practitioners only read about.
Why patients come from across the country
The combination of chiropractic neurology, functional medicine, and naturopathic medicine in a single practitioner is genuinely rare. So is the willingness to spend real time with a patient — reviewing their full history, ordering the right tests, and building a plan that actually reflects what was found.
For patients who have spent years in fifteen-minute appointments that never quite got to the bottom of things, that difference is worth a plane ticket.
Dr. A has worked with patients dealing with conditions that range from chronic pain and migraines to traumatic brain injury, autoimmune disease, neurodegenerative conditions, and complex neurological symptoms. Many arrive without a clear diagnosis at all. What they share is a history of being told that what they're experiencing either can't be explained or can't be changed.
Every patient is seen by the doctor
At Ambridge Clinic, Dr. A sees every patient himself. There are no handoffs to someone who will relay what he would have said. The evaluation, the assessment, the treatment plan, and the ongoing care all come from him directly.
He also works alongside your other providers, not in place of them. If you have a primary care physician, a specialist, or a mental health provider, Dr. A coordinates and communicates. The goal is a complete picture of your health, not a replacement of the care you already have.
Outside the office
Dr. A has called Sandpoint, Idaho home for years, and it shows in how he practices. The people he treats are his neighbors, and the patients who travel to find him arrive in one of the most beautiful places in the country.
Outside the clinic he is an active outdoorsman — water skiing, snow skiing, hiking, backpacking, and spending time on Lake Pend Oreille. He is a father of three and grandfather of one, and he makes a point of staying connected to the people who matter most to him.
He also speaks nationally to other healthcare practitioners, sharing what four decades of clinical work has taught him. The education doesn't stop. It never has.
Work directly with Dr. A
Every evaluation, plan, and visit comes from him.