Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Matthew James Koster, MD

Individual provider Internal Medicine Physician · NPI 1588891469

Matthew James Koster, MD is a Rheumatology in Rochester, Minnesota. Graduated from Loyola University of Chicago, Stritch School of Medicine in 2009, 17 years ago. Practices with Mayo Clinic, a 4,796-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Minnesota.

Years since qualifying
17
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
IL, MN
In the registry since
2009
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

200 1st St SW
Rochester, MN 55905-0001
Phone: (507) 284-2511
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 56961 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence BF4649604-A357 (IL)
Rheumatology Physician Taxonomy 207RR0500X · Licence 106941 (MN)

Record details

NPI number1588891469
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 17, 2009
Last updated in NPPESAugust 14, 2020
Certification dateAugust 14, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRHEUMATOLOGY
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Mayo Clinic — 4796 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Rochester