About
Mark R. Merrell, MD, is board certified in orthopaedic surgery and is a member of the American Academy of Orthopaedics 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).
Board Certified Orthopaedic Specialist
Dr. Merrell specializes in the following orthopaedic procedures and treatments:
- Computer Assisted Surgery
- Hip Replacement
- Knee Replacement
- Rotator Cuff Repair
- Shoulder Replacement
- Arthroscopic Knee and Shoulder Surgery
- Fracture Care
Mark R. Merrell, MD Background & Accolades
Education
- Undergraduate: Associate’s Degree, Premedicine, Ricks College, Rexburg, ID
- Undergraduate: Bachelor’s Degree, Microbiology, Brigham Young University, Provo, UT
- Medical: University of Utah, Salt Lake City, UT
Training
- General Surgery Internship: Maricopa Medical Center, Phoenix, AZ
- Orthopaedic Surgery Residency: Phoenix Integrated Orthopaedic Residency Program, Phoenix, AZ
Professional Affiliations
- Fellow, American Academy of Orthopaedic Surgeons
- Member, Western Orthopaedic Association
- Member, Washington State Medical Association
- Member, Benton-Franklin County Medical Society
Certifications
- Diplomate, National Board of Medical Examiners
- Diplomate, American Board of Orthopaedic Surgery
Dr Merrell is straight forward no wasted time tell it like it is a very hard working man . His staff is excellent I would say world class.
Wentin for my knee replacements check up. Year 8 and 6 and they are doing great! Dr. Merrell and staff at TCO are all very pleasant and professional!
The visit was informative but very brief. I would like more information about what is currently happening as well as what is going to happen.
Once again I've had a top notch treatment on my shoulders and hip. The cortisone shots relieved me of all the pain and I was able to sleep well again. Many thanks to Dr Merrell and Eric Lowe, his PA-C. I appreciate them so much!!
Dr Merrell is the consummate doctor and surgeon. If you are in need of orthopedic surgery and /or medical advice, then Dr Merrell and the staff at TCO should be your first stop.
Dr. Merrell is wonderful. He listens to the issues and problems and then clearly explains what might be going on. Then,he recommends the best options or paths to move forward. I have been very pleased with Dr. Merrell's care since even before he performed my rotater cuff surgery a few years ago. Thank you for your excellent and compassionate care.
Great location, great staff always friendly great doctor, helpful, and knowledgeable
Dr. MERRELL has been my Dr. For many years and a Super One at That I refer him to all the people I can He is a very caring Dr. tells you how it is and what needs to be done. When surgery comes he is thee most kind man you could ever ask for. He is the Greatest Doctor ever!
Very pleasant and professional. I felt like I was treated well and my questions were answered. Would recommend him to other
I felt heard and cared for during my appointment. I am impressed by Dr. MARRELL
Dr Merrill is kind and compassionate. He cares about the results you achieve from his surgery. A very good listener.
Pleasant and thorough. He listened to me and explained his thoughts. Office staff was friendly and efficient.
I think that TCO is great. The receptionist were friendly and helpful, the nurses were great and very helpful and explained things well. The radiology was fast and efficient. Dr Merrill was great, friendly and very knowledgeable and the care he gave was great.
The staff was great!! I waited only a few minutes to see Dr Merrell and he was thorough and explained my situation well.
The nurse & doctor were both prompt & very attentive answering all my questions & addressing my concerns.
Dr. Merrill is an excellent doctor. His staff (and Envy) were very considerate during removal of my staples. Great experience. Thank you.
Very happy with the whole staff at Tri-City Orthopedic! Dr. Merrell did a great job on my knee replacement, and Jun and the group in physical therapy helped me get everything working great. Nice to have everything done in one spot, TCO.
Everyone from the reception desk to the nurses to the x-ray techs, to the doctors are awesome. Thank you so much for helping with my knee replacement surgery.
Dr. Merrell did a wonderful job on my knee both before and after surgery. He had prepared me by answering my questions laying out the procedure ahead of time.
Dr. Merrell is friendly, answers questions. He has done 3 of my surgeries. I have had no problems. He is definitely one of my favorite doctors.
Dr Merrell is great he listens to his patients and explains everything very well. The staff are very kind patient and caring. The receptionists are very friendly and helpful. Overall the entire office is caring and helpful to their clients.
I am very impressed with Dr Merrell and his office. I have been going to him for over 2 years. I give him a 5 star rating!
Prompt service and clear concise info and instructions. Felt listened to and understood.
Very professional yet friendly! After visiting with Dr. Merrell, I feel less anxious and ready for my upcoming hip surgery.
The doctor was very nice and the staff was so helpful. I could walk and let me take my time doctor help my giving me a shot in my knee.
Everyone was not only professional, but but also very friendly.
Dr. Merrell replaced my right knee 2½ weeks ago and I'm so happy with the results. Dr. Merrell's level of communication is outstanding! I appreciate his honest approach about what I have to do to fully recover. The staff at TCO are also very responsive, in a timely manner, with answers to my questions. I'm confident that with PT and following Dr. Merrell's instructions, I'll recover 100%. At just two 2 ½ weeks I can already tell a big difference. Thank you TCO & Dr. Merrell.
Staff and doctor were efficient and friendly. I was able to be seen the same day.
Very professional, on time, gets right to the issues, explains everything very clearly.
I have been a patient for many years and have had excellent treatment every time from front office staff, to nurses, and Dr. Merrell. Highly recommend TCO.
Eight years after a total knee replacement I needed some options for dealing with some mild discomfort and thankfully Dr. Merrell gave me great advice before considering any invasive procedures.
Really appreciated his experience and personal interest. He understood the problem immediately and took action to correct it!
Dr Merrill answered all questions so I could understand. Listened to my concerns. Very happy with the visit
Very nice talked a little fast, but I made a great choice in a doctor.
All the folks there are friendly and kind and they provide excellent care.
Mark Merrell diagnosed my issue very quickly and explained my options. My surgery went well and the scar is looking excellent! He and his staff are super organized and attentive to all my concerns
I had hoped to get rid or mask some of the pain in my knee but the prescription was not a successful Dr Merrell was kind and listen to my experiences
Quickly identified the source of pain; provided clear list of treatment options; answered all of my questions in a way that was easy to understand.