
Billings Clinic
Infectious Disease • Kalispell, MT • Since 1939
Information from public sources; not independently verified. Confirm hours, insurance and appointment availability with the clinic.
Last gathered July 11, 2026. How our information is sourced · Report incorrect information
About
Billings Clinic is a nonprofit, regional health system based in Billings, Montana, serving Montana, Wyoming, and parts of the Dakotas. It offers primary and specialty care across multiple campuses and affiliates, including a 336-bed hospital with a Level I Emergency & Trauma Center, NICU, cancer care unit, surgery center, and MedFlight. The system employs about 1,200 staff and 600 physicians/advanced practitioners across 80+ specialties, and operates as Montana’s and the region’s largest healthcare network. For Infectious Disease care specifically, the clinic provides comprehensive hospital-based and specialty services through its broad physician network, though Kalispell is not listed as a Billings Clinic site in the provided details.
Services Offered
Team
Insurance & Payment
Not published.
Languages Spoken
Not published.
FAQs
What should I do if I need help finding a primary care physician?
If you do not have a primary care physician, call our HealthLine nurses at 406-255-8400 or 1-800-252-1246 for assistance in finding one to meet your needs.
What is infectious diseases care at Billings Clinic?
The physician specialists of Billings Clinic’s Infectious Diseases Department provide comprehensive care for patients with acute and chronic infections due to infectious diseases.
How is patient education handled?
The infectious disease specialists and care team educate each patient on his or her condition in a confidential setting and work with the patient’s primary care physician to provide a treatment plan.
How do patients get referred to infectious diseases specialists?
Your primary care physician will refer you to an infectious diseases specialist.
What should a patient do if they don’t have a primary care physician?
Call HealthLine nurses at 406-255-8400 or 1-800-252-1246 for assistance in finding one that meets their needs.
Social Media
Photos
Photos published by Billings Clinic showing the infectious disease practice in Kalispell, MT.





What Patients Say
Overall sentiment across review platforms: very positive
- Healthgrades, WebMD, U.S. News & World Report: 5/5 stars (Multiple aggregate ratings (e.g., 3-5 reviews per platform))
Patients praise
- Professional and courteous staff
- Thorough diagnostic process
- Good bedside manner
- Effective treatment plans
Common complaints
- None reported in available data
"My first medical visit with Dr. Tjaden was extremely well received. He had not only thoroughly reviewed my medical records that were faxed from my referring infectious disease provider, but had also contacted my former physician by phone to obtain other pertinent information."
- Healthgrades patient review"I would recommend him to family and friends. He goes beyond the usual to figure out what "bug" is doing all the damage. Super bedside manner."
- Vitals patient reviewSynthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].
In the News
- Billings doctors encourage measles vaccinations, as cases spike nationwide - Oct 16, 2025
- Montana doctors encourage measles vaccination, as cases spike nationwide - Oct 16, 2025
- RiverStone: Suspected measles case emerges from child at Billings camp - Jul 19, 2025
- Vaccination awareness grows after suspected measles case in Yellowstone County - Jul 21, 2025
Information sourced from the clinic's website as of July 11, 2026.
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