Dr. Sonja Maurie Bjerk, MD

Dr. Sonja Bjerk specializes in pulmonology, focusing on the diagnosis and treatment of lung and respiratory conditions. She holds board certification in internal medicine from the American Board of Internal Medicine, which provides her with a strong foundation in comprehensive adult care before specializing in lung health. Dr. Bjerk speaks English with her patients.

Dr. Bjerk practices at multiple Essentia Health locations, including clinics in Deer River, Duluth, and Grand Rapids, Minnesota. She is affiliated with Essentia Health Saint Marys Medical Center, Essentia Health Duluth, Essentia Health Deer River, and Essentia Health Saint Marys Childrens Hospital. Her clinical expertise includes treating chronic lung disease and COPD, particularly in patients with multiple health conditions. She performs pulmonary function testing to assess lung capacity and breathing patterns, along with chest imaging studies to evaluate respiratory health.