Dr. Koster is on Doximity
As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.
- Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
- Connect with colleagues in the same hospital or clinic.
- Read the latest clinical news, personalized to your specialty.
Office
200 1st St SW
Rochester, MN 55905Phone+1 507-284-2511
Education & Training
- Mayo Clinic College of Medicine and Science (Rochester)Fellowship, Rheumatology, 2013 - 2016
- Loyola University Medical CenterResidency, Internal Medicine, 2009 - 2013
- Loyola University Chicago Stritch School of MedicineClass of 2009
Certifications & Licensure![](https://directory.doximity.com/assets/icons/icon-help-e9f0b148a1e6d1f037dde9f26f025c36bd7c99fd4fe31fd76792996fa2aa5e66.svg)
- MN State Medical License 2013 - 2025
- IL State Medical License 2009 - 2014
- American Board of Internal Medicine Internal Medicine
- American Board of Internal Medicine Rheumatology
Publications & Presentations
PubMed
- Efficacy of MEK inhibitors in Erdheim-Chester disease: impact of MAPK pathway pathogenic variants.Aldo A Acosta-Medina, Jithma P Abeykoon, Saurabh Zanwar, Gordon J Ruan, Karen L Rech
Leukemia. 2025-02-11 - Novel Photon-Counting Computed Tomography for the Evaluation of Large-Vessel Giant Cell Arteritis.Sehreen Mumtaz, Matthew J Koster, Kenneth J Warrington
The Journal of Rheumatology. 2025-02-01 - Erdheim-Chester Disease With Significant Response of Large Vessel Disease to Cobimetinib Monotherapy.Nehaal Ahmed, Jithma P Abeykoon, Angela Collie, Matthew J Koster
American Journal of Hematology. 2025-01-22
Press Mentions
- VEXAS Syndrome More Dangerous Than Thought – US Data AnalysisFebruary 7th, 2023
- Study Predicts Higher Prevalence of VEXAS Syndrome (Updated)January 26th, 2023
- VEXAS Syndrome May Be More Common Than Previously KnownJanuary 25th, 2023
- Join now to see all
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence: