The staff here is 10-10 amazing every one is so nice and helpful. Dr lai is the smartest nicest man ive met, theyre so great here
Billings
100 Brookshire Blvd Bldg 2, Suite 1 Billings, MT 59102
Hours: Monday-Thursday 8:00 a.m. – 5:00 p.m. Friday 8:00 a.m. – 12:00 p.m.
Fax: 406-206-0105

The Pure Infusion Experience
Spa-like private suites
Comfortable recliners
55-inch TV with Netflix
Drinks, snacks, meals, & more
Easy, convenient parking
Free Wi-Fi
Fighting a chronic or autoimmune illness comes with many uncomfortable challenges. The infusion experience shouldn’t be one of them.
WE DON’T BELIEVE IN WAITING ROOMS.
When a patient enters our outpatient infusion center, they are taken to their own private suite to relax in a spa-like environment. Our suites are designed with enough room to bring a loved one or caregiver. Expect to interact with staff that listens to each patient’s unique needs and prioritizes making the experience comfortable and enjoyable.
Learn MoreAt Pure Infusion, we believe great care starts with a great experience.
4.9 rating
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Avery Winton
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Molly BeylStacey + Randee are so awesome to work with. So caring and solutions driven! Thank you both!
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Georgia RutschkeMy experience at MAC was great, as always! Dr. Lai is such a kind, thorough doctor who makes me feel like he really cares. Of the 4 rheumatologists I’ve had he’s far & above the best! He listens to me and answers questions. He…
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Spencer Schwartz
The staff at the clinic is so friendly that they make the experience of getting the infusions so much better. They all are very knowledgeable and helpful in so many ways. Everyone there seems to be an expert in their own area and I am very… -
Kristina SonesProfessional, kind and caring. Great listeners and patient with your questions. They are amazing!
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Daniel ClaveDr Lai is the man, Incredibly knowledgeable and kind, the nurse staff have been amazing to me, would highly recommend if you are dealing with arthritis
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Summer BarresiAs someone who has needed care from a Rheumatologist for nearly 30 years, I was nervous finding a new doctor after relocating to Montana. Dr. Lai is extremely professional, truly shows that he cares and is fluent on the best types of…
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Darold HeckVery pleasant and very helpful. Staff is excellent to help you. Also kind hearted and caring
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AmyI always have the best experience at Montana arthritis center from start to finish my rheumatologist Sadra Thomas is so amazing, super smart, Kind, caring, and always helps me to find ways to live my best life with rheumatoid arthritis I…
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Ann N
The best care ever! -
Pamela OsbornVery friendly, and so helpful. Would recommend to anyone with unknown diagnosis, they go the extra mile.
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Judy SullivanExcellent care
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Samantha ThompsonIncredibly kind, helpful, knowledgeable, and accommodating team. I feel both cared for and have trust in my medical team.
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Matt IrwinExperience was great everyone was quick and professional
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Janine JohnsonI love going to see my Rheumatologist! The staff is friendly, the doctor runs on time and the clinic is beautiful. My doctor, Wendy, is always willing to listen to me and help me find solutions to my problems. I highly recommend Montana…
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AJ BrownI feel like they really hear their patients!
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Daniel RobertsonBest treatment at a specialist I've received for my condition. Wendy was very conscientious, and is the most willing to work on my behalf. Several have not.
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Samanth MoralesDr Wendy is awesome, I appreciated the honesty and the the time she took to answer my questions, explain how this disease works and what it does, switching my care to her has been the best decision, empathy patience and kindness go A LONG…
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Morgan O’BrienI don’t know what I would do without Montana Arthritis Center, especially Wendy. I only have good things to say about how I have been treated since becoming a patient. Everyone does a great job and I would recommend MAC to any of my…
Comfortable, spacious private suites with a spa-like atmosphere.















THERAPIES WE ADMINISTER
Get Treatment for Your
Chronic Illness
We offer a range of biologic infusion and sub-cutaneous therapies.
See All Therapies- Actemra
- Briumvi
- Cimzia
- Entyvio
- Fasenra
- Krystexxa
- Nucala
- Ocrevus
- Ocrevus Zunovo
- Rituximab
- Glassia
- Ilaris
- Ilumya
- Infliximab
- IVIG
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Ultomiris
- Uplizna
- Vyvgart
- Vyvgart Hytrulo
- Xolair
- Skyrizi
- Tepezza
- Tezspire
- Tremfya
- Tysabri
Expert Medical Staff in a Safe, Comfortable Infusion Setting
