Our Reliable Team
Over 30 Years of Combined Experience | Licensed Massage Therapist | 24-Hour Emergency Services
Over 30 Years of Combined ExperienceLicensed Massage Therapist24-Hour Emergency Services
Get to Know Our Staff
These pictures will take you through the various friendly faces at Great Falls Medical Services. Choose us for friendly medical testing in Great Falls, MT. You can trust us to give you genuine reports. Call us at (406) 868-7660 for emergency services.

Carmen Preston
Carmen Preston, a retired US navy personnel, has been with Great Falls Medical Services for over 11 years. In addition to her duties as a DOT certified Breath Alcohol and Urine Specimen Collection Technician, hair and DNA collection technician, Carmen commands the front desk and can answer questions about the business.

John Nelson
John Nelson has been with Great Falls Medical Services for over 6 years and has completed DOT certification as a Breath Alcohol and Urine Specimen Collection Technician. He is trained to do hair collections for drug detection as well as DNA collection for paternity and relationship testing. John is also proficient in completing physical exams for insurance companies, which includes biometrics, medical interviews and blood collection. He's a Master Beekeeper as well.

Theresa Rogers
Theresa (Terri) Rogers has owned Great Falls Medical Services since January 2009.
Certificates
- Phlebotomy Technician
- PBT(ASCP)cm
- Breath Alcohol Technician (BAT) and Factory Authorized Calibration Technician for Intoximeters, Inc Intoximeters Instructor for ALCO-SENSOR VXL / RBT VXL and ALCO-SENSOR IV w/MEMORY
- Urine specimen collection technician
- DNA collection technician
- DNA relationship testing consultant
Licenses
- State of Montana Licensed Massage Therapist (LIC – 457)

Jack Cantrell
Jack has been part of Great Falls Medical Services since the last two years. He's a certified technician. Jack is also a western artist who specializes in wildlife art. You can view Jack's work at cantrellwildlife.com.