Welcome to Landmark Occupational Health, headquartered in Williston, ND in the heart of the Bakken Oilfield Region. We are a comprehensive Occupational Health Services practice dedicated to protecting the health and safety of a most valuable asset, the region’s employees! In the unfortunate event that a workplace injury occurs, we will provide optimal treatment with the patient’s best interest in mind.  Post offer employment testing services offered that can be tailored to meet your company’s specific needs. We provide these services in one location for the convenience of our patients and their employers. Please contact us for more information at 701-355-6633.