Phone: 406-549-2001 Fax: 406-493-3201

Who We Are

Specialty Trained Staff Dedicated to Helping You

You take your work seriously, and so do we. Our dedicated occupational health staff is specially trained, with treating providers who are board-certified.

And because our providers and staff are on top of treating workplace injuries, you get the advantages of this expertise. They are trained to recognize and treat work-related injuries from the most common—wrist, knee, back, neck, and arm—to injuries that may be harder to detect.

In addition to our clinical staff, support staff is trained in workers' compensation paperwork and case management in order to coordinate your care and communication with your employer and insurance company.

Joseph M. Erpelding


Dr. Joseph Erpelding graduated from West Point Military Academy and the University Of Washington School Of Medicine. He completed his Orthopaedic Surgical Residency at Madigan Army Medical Center and is board certified in Orthopedic Surgery with CAQ in Sports Medicine. Dr. Erpelding served as Lieutenant Colonel and Flight Surgeon in the US Army. He has received numerous Service and Achievement Medals. He has served as Chief of the Orthopedic Department at St. Vincent Healthcare in Billings and as President and Executive Director of the Society of Military Orthopaedic Surgeons as well as the Board of Councilors for the American Academy of Orthopedic Surgeons. He is a recipient of the US Army Surgeon General’s Award for excellence in Military Medicine and the Joint Chief of Staff’s Award for Excellence in Medicine and Research. Dr. Erpelding performs Independent Medical Exams, Causation Exams, Closing Exams and Impairment Ratings.

Royce G. Pyette


Dr. Pyette graduated from Montana State University before attending the University of Washington Medical School. He completed specialty training at the University of Utah and Family and Preventive Medicine Program where he served as chief resident. Dr. Pyette is board certified in Family and Preventive Medicine with a Specialty of Sports Medicine and Nonoperative Musculoskeletal Medicine. He was employed at Bridger Orthopedic and Sports Medicine in Bozeman, MT from 2002-2013 where his practice included Sports Medicine, Orthopedic Surgical Assisting, Spinal Care and Occupational Medicine. Dr. Pyette has been a US. Ski and Snowboard Team Physician since 2001 and is the Medical Director for an International Mountain Guiding Company. Dr. Pyette’s current medical practice focus is performing Impairment Ratings and Closing Exams.

Scott K. Ross


Dr. Ross received his MD degree in 1976 from the University of Ottawa Health Sciences Center in Ottawa, Ontario, Canada. He has practiced Occupational Medicine since 1980. In 1990 he earned a Masters Degree in Business Administration (MBA) from Southern Methodist University in Dallas, Texas. He became Board Certified in Occupational Medicine in 1993, and is a Fellow of the American College of Preventive Medicine. From 1993 to 1995, Dr. Ross served as Medical Director of Oregon state’s Workers’ Compensation Division in Salem, Oregon. In 1995, he received his Masters Degree in Public Health (MPH) from the Medical College of Wisconsin in Milwaukee. Dr. Ross practiced at Billings Clinic from 1998 until June 2014; from 1998 to 2010, he served as Chairman of the Department of Occupational Health and Wellness, as well as Medical Director of Billings Clinic Employee Health Department. He is currently certified as a Medical Review Officer (Medical Review Officer Certification Council), Independent Medical Examiner (American Board of Independent Medical Examiners), and Certified Medical Examiner (FMCSA National Registry of Certified Medical Examiners).

Michelle Sokoloski


Michelle Sokoloski received her RN, BSN degree in 1979 from MSU, Bozeman. In 2012 she earned her Masters of Science in Nursing with honors as a Family Nurse Practitioner. Michelle has over 25 years of experience in direct patient care, Public Health, Quality Management/Risk Assessment and clinical trial research in Immunology, Oncology, Hypertension and Diabetes studies. She has worked as an infectious disease sub-investigator, infectious disease/ immunology research coordinator and CIU trainer and program facilitator. Michelle is a Certified Medical Examiner (FMCSA National Registry of Certified Medical Examiners) and is committed to providing quality care to drivers, employees and injured workers in all aspects of Occupational Health.

Ron Handlos


Ron served in the military as an Army Corpsman after graduation and then went on to work for the U.S. Public Health Service in Seattle. He graduated from the University of Utah PA program in 1971. Ron earned his Masters in Occupational Health and his Masters in Physician Assistant Studies in 2004 from the Arizona School of Health Sciences. He has worked in Ennis at Madison Valley Hospital in family practice, ER and orthopedic surgery. Ron then practiced at the Billings Clinic for 15 years with the Occupational Health Department. He has served as the President of the Montana Academy of Physicians Assistants for 2 separate terms and has also been the Trauma Director for the Granite County Medical Center.

Ron has over 40 years of experience as a PA, many of those years working in work comp care and occupational health. Ron will provide all aspects of care as treating provider, injury care, injections, pain management and all occupational health needs.

Lynne D. Sinnema

Director of Operations

Lynne Sinnema , is a business executive who has held leadership roles for over 26 years. She has been involved in various aspects of the business world, including developing retail marketing strategies and healthcare management and coordination. She serves as the liaison between healthcare facilities and the Montana State University systems and conducts research in conjunction with Vanderbilt University.

In Lynne’s diverse background, she has developed a track record of providing excellent customer service to her clients in all aspects of business. She brings exceptional focus on achieving superior financial results and developing systems and processes that improve business performance.

In addition, Lynne has worked both sides of healthcare administration, giving her a greater understanding for the employer, provider and injured worker.