Montana Arthritis Center of

Great Falls, MT

At Montana Arthritis Center, our Great Falls rheumatology care team provides quality, compassionate care for those with rheumatic conditions.

We focus on the latest treatments for rheumatic disorders as well as tried and true practices to provide maximum benefit to our patients.

Our care team specializes in the diagnosis of diagnosis and management of disorders related to joints, muscles, and connective tissue. As non-surgical musculoskeletal disease experts, rheumatologists manage the treatment of such disorders through patient education, rehabilitation, and medication therapy.

As a physician-owned practice, we take the time to get to know our patients and provide what has become so precious in modern treatment: our full attention and time. That means we will get to know you as a person — not just a patient file.

Together we can achieve optimal health and well-being for you. We look forward to working together to provide you or your loved one with expert medical treatment, guidance, and care.

Conditions we treat

  • Rheumatoid arthritis
  • Lupus
  • Vasculitis
  • Sjögren’s disease
  • Fibromyalgia
  • Mixed connective tissue disease
  • Ankylosing spondylitis
  • Psoriatic arthritis
  • Seronegative spondylarthritis
  • Lupus nephritis
  • Dermatomyositis
  • Polymyositis
  • Inclusion body myositis
  • Autoimmune necrotizing myositis
  • Scleroderma
  • Osteoporosis
  • Osteoarthritis
  • Gout
  • Sarcoidosis
  • Juvenile idiopathic arthritis
  • Relapsing polychondritis
  • Polymyalgia Rheumatica

Great Falls

1400 29th St S.
Suite 218
Great Falls, MT 59405

Phone: 406-350-4600
Fax: 406-794-0555

8:00 a.m. – 5:00 p.m.

8:00 a.m. – 12:00 p.m.

What our patients say about the mac

Marilyn TookeMarilyn Tooke
03:15 08 May 23
I first met Dr. Lai, in Havre Mt. He came up there once a month for awhile. He’s a great Dr. and make’s you feel at ease. He’s been well educated. The last appointment I had I went to Stacy Johnson, and she was great too. They spend a lot of time with you, and do their best to help you. I can’t say enough good about MAC. The staff is very friendly, and the atmosphere is relaxing, and friendly too. I recommend if you need one of these kind of Doctor’s, to make an appointment with one of them, and I don’t think you would be disappointed.
vonnieb blomgrenvonnieb blomgren
20:34 04 May 23
I have seen Dr Lai for awhile now and have followed his moves. He seems to genuinely care about his patients and really listens to what we are saying to determine the best type of care to be given. He has validated my feelings and concerns where as other Drs give the impression that “I look fine therefore must be fine “ and just because my labs come back looking pretty normal doesn’t mean I am not having valid issues. Recently I have been dealing with Dr Bowman (in training) and he obviously has been trained by Dr Lai and seeks to provide the same kind of empathetic care! Dr Lai’s current nurse Vicky is helpful also… would definitely recommend this office.
Gary ThorsonGary Thorson
23:11 10 Apr 23
After 10 yrs of trying to get help Dr Iie solved my mystery in maybe 45 minutes. It is satisfying to talk with his staff and not get labeled or stripped of individuality. Pain is real. He will HELP
Ed CaffreyEd Caffrey
01:49 24 Feb 23
Hat's off to Dr Lai and the entire crew at MAC! Struggling with a chronic illness (Lupus) is no easy thing, but having Dr Lai as the "Quarterback" of my care team, that includes not only local Doctors/specialties, but also University of Washington/Seattle Doctors, has made my journey/battle one of hope, versus one of despair. From the smiles that I am met with when I check in, to the outstanding/professional care I receive throughout EVERY visit, to the willingness of Dr Lai to go beyond the routine in seeking avenues to better my condition.....simply the BEST health services that I have ever experienced.
linnette mosslinnette moss
22:26 26 Oct 22
Dr Lai and his team are amazing. Helpful, knowledgeable and I never feel like I’m fighting alone. The only complaint I have is they are so busy they can be hard to get ahold of.

Meet the Great Falls RHEUMATOLOGY Team

Richard Lai


Sadra Thomas


Bowen Trystianson


Stacey Johnson