Our Mission

At Clinical Research Prime, our goal is to speed the development of medical treatments and aid in the advancement of medical history by providing high quality in every aspect of a clinical research trial.

Our Story

Clinical Research Prime was created in 2017 by Dr. Jeffrey B Baker MD after working in clinical research at other facilities for over 15 years. Being a Certified Principal Investigator (PI), Dr. Baker has supervised and been the director of over 350 clinical trials ranging in many different medical fields and specialties.

Clinical Research Prime has grown to be a regional and world leader in clinical research and recognized by many pharmaceutical companies as a “super” site, meaning that they are noted for their high quality enrollment and degree of efficiency in their training and work. Clinical Research Prime continues to grow with the intention of making clinical trials an opportunity for medical providers and their patients.

Our Current Clinical Studies

Click on a study below to learn more or apply for the study.


Influenza Treatment Studies

  Miscarriage Treatment

Hot Flashes



  Pregnancy Prep Device

Our Experienced Research Team

Jeffrey B. Baker, MD

Jeffrey B. Baker, MD

Principal Investigator/Chief Medical Officer

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Dr. Jeffrey Baker is an obstetrician gynecologist (OB/GYN) that has worked in Idaho Falls for nearly the last 30 years. Dr. Baker has performed clinical research for the past 20 years and has been involved in over 100 clinical studies including Phase I, II, III, and IV studies. Dr. Baker has been the high enroller in many studies in women’s health, and he has successfully recruited for general trials such as obesity, constipation, and vaccines.

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Joseph Armbruster, APRN, MSN, FNP-BC

Joseph Armbruster, APRN, MSN, FNP-BC

Sub-Investigator/Nurse Practitioner

Joe Armbruster is a Family Nurse Practitioner with extensive experience in traditional and integrative medicine. He was born and raised in Missouri and chose nursing because he wanted to help others. He previously worked in Neurology, but also enjoyed working with children for many years in a pediatric clinic. 

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Meet Taylor Smith MSPH, PA-C

Meet Taylor Smith MSPH, PA-C

Sub-Investigator/Physician Assistant

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As a native of Idaho Falls, Taylor is excited to practice in this wonderful town and serve the community that gave so much to him in his youth. He became interested in healthcare at a very young age after having the opportunity to work at his grandfather’s pharmacy in Idaho Falls, Eastgate Drug. Taylor finds great satisfaction in building trusting and lasting relationships with those he sees, and finds the most joy when medical decisions can be shared between the patient and provider.

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Monday-Thursday 8am-5pm & Friday 8am-2pm
187 East 13th Street
Idaho Falls, ID 83404


By Appointment Only
420 E 4th N
Rexburg, ID 83440

Strategically located research sites for patient access and diversity.


Clinical Research Prime has the following resources for performing clinical trials:

  • 4 On-Site Sub-Investigators, 10+ Off-Site Sub-Investigators
  • Site Administrartor, Certified Clinical Research Quality Manager, Training Manager, Regulatory Manager
  • 5 Research Dedicated Exam Rooms and 13 Private Practice Exam Rooms Available
  • Fully-Equipped Laboratory
  • IV Infusion Room and Procedure Room
  • Refrigerated Centrifuge and Ambient Centrifuge
  • Secure Drug Storage Room with 24/7 Alarmed Temperature Monitoring
  • IP Refrigerator, -20 Freezer, and -70 Freezer with 24/7 Alarmed Temperature Monitoring
  • – 20 Freezer with 24/7 Temperature Monitoring
  • – 70 Freezer with 24/7 Temperature Monitoring
  • Wi-Fi Connectivity Throughout Facility
  • Long-established Relationships for Off-Site Diagnostic Services