Staff at Rimrock Prosthetics, Inc.

James Middleton, CP - Owner, Lead Prosthetics Tech


Andrew Long - Ostomy Specialist, Prosthetic Tech


Nicole Kellog

- Office Manager





Contact Us

1139 N 27th St 

Suite C-2

Billings, MT 59101


Call us at 406-252-6100 or use our contact form. 



Business Hours


8 a.m. - 5 p.m. Monday-Friday



Connect With Us.

Rimrock Prosthetics, Inc. - Expertise Based on Experience


In May 2006, Jim started Rimrock Prosthetics with a passion for helping people.


Our team is experienced and committed to excellence. At Rimrock Prosthetics, we stand out for our personalized service and attention to detail. Focusing on making sure our customers feel comfortable and confident with their prosthetics, customizing each one to fit their individual needs and style.



Meet Our Staff

Jim Middleton



Education & Activities

Jim graduated with honors from the University of Minnesota with a Bachelors of Science Degree in Prosthetics and is an American Board Certified Practitioner.  Jim completed his accredited residency at the University of Michigan Orthotic and Prosthetic Center.

The University of Michigan Orthotics and Prosthetics Center, a division of the Department of Physical Medicine and Rehabilitation, has a long history of providing high quality residencies for orthotic and prosthetic program graduates.  

Outside of the office, Jim is actively involved in the community through Eagle Mount activities year round with the winter skiing program and the summer cycling program.  In previous years, Jim has participated in several programs throughout the U.S. such as Winter Park skiing instruction in Colorado.










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