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                                                                      Laboratory Services


Welcome to Benefis Laboratory’s Online Test Catalog, providing clinicians with real time ordering information to ensure the best possible care for patients. 

Benefis Laboratory is accredited by the College of American Pathologists (CAP). We provide accurate, timely, cost-effective, integrated laboratory testing for clinical diagnosis of disease. We serve both inpatient and outpatient needs with a broad range of services, including hematology, coagulation, clinical chemistry, microbiology, molecular microbiology, transfusion medicine, and anatomic pathology. Our laboratory employs more than 100 staff members and performs more than 2.5 million tests annually. 

We conveniently offer three draw sites in Great Falls:


Benefis East Outpatient Laboratory Services
1401 25th Street South
Medical Office Building #4, Entrance 4, Floor 1
Phone: (406) 731-8337
Open Monday through Friday, 7 a.m. – 6 p.m. 


Benefis West Hospital Laboratory Services
500 15th Street South
Entrance 34, Floor 1
Phone: (406) 455-2016
Open Monday through Friday, 7 a.m. – 4 p.m. 


Full Service Main Lab at Benefis East Laboratory
1101 26th Street South
North Tower, Entrance 1, Floor 2
Phone: (406) 455-5435 
Available 24 hours a day, 7 days a week
(Appointments are only necessary for Sweat Chloride and Paternity collection)


Patient Instructions
When you come for your lab test, be sure to bring the lab test order from your provider and your insurance card. 

The laboratory defines fasting as no food, drink (water is OK and encouraged), or smoking for 12 hours before blood is drawn. Patients may still take medication with small amounts of water, unless your provider has given other instructions. Candy, gum, mints, and coffee should not be consumed if your labs require fasting.