Dr. Zachary Maas



Dr. Zachary Maas, Cook Chiropractic ClinicDr. Zachary Maas is a board-certified Doctor of Chiropractic. Growing up he was always very active with sports and community-based activities. Enjoying an active lifestyle, he wanted to find a career in health and fitness. He graduated with a Bachelor of Science degree from the University of Minnesota Duluth. After graduation, he attended chiropractic school at Northwestern Health Sciences University (NWHSU). Dr. Maas graduated from NWHSU in 2015. During his studies, he also completed extra certifications in pre-participation sports physicals and concussion baseline screening.

He loves that chiropractic allows him to treat patients of all ages and conditions. He started his career practicing in Alexandria, MN. He has treated patients as young as days old all the way up to those in their late 90s. While in Alexandria, he also served as one of the team doctors for a local NA3HL hockey team. He has treated athletes of all ages and from a variety of sports. He is fascinated everyday by the positive impact chiropractic care has on athletes.

Dr. Maas is married to his beautiful wife Lauren and they have an adorable daughter, Vivian. In his spare time, Dr. Maas enjoys being active with working out, playing hockey, golfing, hunting/fishing, and spending time at the lake with his family. 




Dr. David Cook



Dr. David Cook is a board-certified Doctor of Chiropractic. He graduated from NDSCS in Wahpeton before he attended Palmer College of Chiropractic in Davenport, Iowa. He graduated from Palmer in 1980. After graduation, he moved to Lisbon and worked at Lisbon Chiropractic Clinic prior to moving back to Wahpeton, ND. In July of 1991 Dr. David Cook and his brother Dr. James Cook partnered to start Cook Chiropractic Clinic.

Dr. Cook is married to his wife, Patty. They have three grown children that are married. They have been blessed with five young grandchildren so far. Dr. Cook enjoys many hobbies including hunting, boating, snowmobiling and wood-working.

Dr. Cook enjoys working on all patients including geriatrics and children. He has been involved with athletics over the years through his children and their friends. Helping people maintain a healthy lifestyle has been a blessing and is what Dr. Cook loves about going to work each day.