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Marco B Thierry

Marco B Thierry, MD

Nephrology

Accepting New Patients
Need help scheduling? Call 406-435-1414

Highlights

Age Groups Seen

  • Adult 18-65
  • Older Adult >65

Languages

  • English

Gender

Male

About Marco B Thierry

Marco Thierry, MD. Born in Mendoza, Argentina but raised in Toronto, Canada from the age of 9. Went to the University of Western Ontario for a Bachelors of Science, and then to Windsor University School of Medicine in the beautiful island of St. Kitts for medical school. He did his clinical training throughout hospitals in Chicago, where he met his now wife, Monica, who he married during his first year of fellowship training. He went to the University of Texas in the Rio Grande Valley for Internal Medicine residency training, where he served as Chief Resident during his 3rd year. He then went on to Washington University in St. Louis-Barnes Jewish Hospital for his Fellowship training in Nephrology, where he served as Chief Fellow during his 2nd year. He has played with local rugby teams throughout his medical training, most recently with the St. Louis Hornets RFC. He and his wife enjoy exploring the cities they live in, and making new friends over a local beer, as well as taking their dog Mabel out for walks, and playing with their cat Dipper at home.

Locations

  1. Telemed Nephrology Glasgow
    • 621 3rd Street South, Frances Mahon Deaconess Hospital, Glasgow, MT 59230
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    • Billings Clinic Outreach Nephrology Miles City
      • 620 South Haynes Avenue, Billings Clinic Miles CIty, Miles City, MT 59301
      • Get Directions
      • Billings Clinic Nephrology
        • 801 North 29th Street, Billings Clinic, Billings, MT 59101
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      • Billings Clinic Outreach Nephrology Glasgow
        • 621 3rd Street South, Frances Mahon Deaconess Hospital, Glasgow, MT 59230
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        • ORC Nephrology Dialysis Clinic
          • 616 North 25th Street, Dialysis Clinic, Billings, MT 59101
          • Get Directions

        Expertise

        Education

        • Fellowship: Barnes-Jewish Hospital, Nephrology
        • Residency: University of Texas Rio Grande Valley, Internal Medicine, 2022
        • Medical School: Windsor University School of Medicine, MD , 2019

        Board Certifications

        • Internal Medicine: American Board of Internal Medicine, 2022

        Ratings & Reviews

        4.8 out of 5

        53 ratings, 15 reviews

        At Billings Clinic, our goal is that everyone who walks through our doors will feel informed, heard, and cared for. Patient experience focuses on delivering critical aspects of healthcare such as easy access to information and good communication with health care providers. We monitor patient experience with patient surveys to understand how we are doing, identify opportunities for improvement, and recognize exceptional care and team members. The patient experience rating is an average of all responses to the care provider related questions shown below.

        Provider explained things clearly
        Provider showed concern
        Provider included you in decisions
        Likelihood of recommending this provider
        Provider discussed treatment options
        Search reviews
          5 out of 5 stars
          Reviewed on 1/21/2026

          Dr. Thierry is exceptional - receiving the best medical care from him.

          4 out of 5 stars
          Reviewed on 11/24/2025

          Dr. Thierry was very caring about my kidneys, told me about my protein levels, concerned about me, I'm first time seeing doctor.

          5 out of 5 stars
          Reviewed on 11/24/2025

          Dr. Thierry was excellent in explaining in laymen's terms all situations involved.

          5 out of 5 stars
          Reviewed on 11/9/2025

          Excellent visit

          5 out of 5 stars
          Reviewed on 11/7/2025

          Dr. Thierry was wonderful. He was thorough and very engaged I will recommend him to every person I know if they ever need a nephrologist.

          5 out of 5 stars
          Reviewed on 7/18/2025

          His explanations were so helpful -

          5 out of 5 stars
          Reviewed on 6/19/2025

          Love this doctor

          5 out of 5 stars
          Reviewed on 6/18/2025

          We were amazed at Dr. Thierry was amazing, he explained everything so we could understand and had a diagnosis right away.

          4 out of 5 stars
          Reviewed on 5/28/2025

          GOOD

          5 out of 5 stars
          Reviewed on 5/28/2025

          He was excellent!

          5 out of 5 stars
          Reviewed on 5/1/2025

          The visits were always good.

          5 out of 5 stars
          Reviewed on 4/30/2025

          Good

          5 out of 5 stars
          Reviewed on 4/24/2025

          Dr. Thierry is very compassionate and really LISTENS and tries to help me on my health journey. He even looked at the supplement container I brought to be sure it was OK for me to use.

          5 out of 5 stars
          Reviewed on 4/23/2025

          Dr Thierry did an excellent job listening and explaining options, past lab results and possible issues. Only problems were my own forgetting to tell him about symptoms during appt.

          5 out of 5 stars
          Reviewed on 4/16/2025

          Good