Dr. Mark R. Merrell, M.D., is a Board-Certified Orthopaedic Surgeon with over 25 years of clinical expertise. He specializes in Computer-Assisted Surgery and total joint replacements for the hip, knee, and shoulder. A dedicated member of the AAOS, Dr. Merrell provides comprehensive care ranging from fracture management to minimally invasive arthroscopy. He is committed to helping patients regain mobility and function through personalized, evidence-based treatment plans.
Dr. Mark R. Merrell, M.D., is a Board-Certified Orthopaedic Surgeon with over 25 years of clinical expertise. He specializes in Computer-Assisted Surgery and total joint replacements for the hip, knee, and shoulder. A dedicated member of the AAOS, Dr. Merrell provides comprehensive care ranging from fracture management to minimally invasive arthroscopy. He is committed to helping patients regain mobility and function through personalized, evidence-based treatment plans.
The reviews listed below were collected independently of Tri-City Orthopaedics through rater8. Each review represents an authentic and verified patient experience.
Very happy!! Thank you Dr Merrillò
(4 days ago)
Mar-2026
Dr.Merrell is the Very Best of The Best Orthopedic Surgeon’s. He listens and really cares about his patients. He does a great job. I would never go to anyone else but Dr . Merrell. Thank you Dr Merrell for my 2 complete knee replacements they feel so good now! I should of done them sooner.
(2 weeks ago)
Feb-2026
Fantastic team and superb care. I will recommend his team to all the people that I meet.
(1 month ago)
Feb-2026
Great person he has taken great care of me he has done both my knee replacements and I’ve have excelled on both and recovered quickly very happy tyvm
(1 month ago)
Feb-2026
Kennewick Orthopaedic Clinic
6703 West Rio Grande Ave Suite B Kennewick, WA 99336
Dr. Mark R. Merrell, M.D., is board-certified in orthopaedic surgery and is a member of the American Academy of Orthopaedic Surgeons. He specializes in surgical and non-surgical treatment of the hip, knee, and shoulder (including joint replacement).
Dr. Merrell grew up working in the potato fields of eastern Idaho but developed an early interest in the medical field. After sustaining several injuries himself, he became interested in how the body works and heals. He wanted to be an orthopaedic surgeon from the time he was 12 years old.
After practicing in the Tri-Cities for over 25 years, one of his greatest satisfactions is seeing his patients' improvement after treatment (whether that be surgical or non-surgical).
Very happy!! Thank you Dr Merrillò
Dr.Merrell is the Very Best of The Best Orthopedic Surgeon’s. He listens and really cares about his patients. He does a great job. I would never go to anyone else but Dr . Merrell. Thank you Dr Merrell for my 2 complete knee replacements they feel so good now! I should of done them sooner.
Fantastic team and superb care. I will recommend his team to all the people that I meet.
Great person he has taken great care of me he has done both my knee replacements and I’ve have excelled on both and recovered quickly very happy tyvm