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

John Bae Korleski, MD

Individual provider Internal Medicine Physician · NPI 1134766959

John Bae Korleski, MD is a Hematology/Oncology in Rochester, Minnesota. Graduated from Johns Hopkins University School of Medicine in 2022, 4 years ago. Practices with Mayo Clinic, a 4,796-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
4
Trained at
Johns Hopkins University School of Medicine
Licensed in
MN
In the registry since
2019
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

200 1st St SW
Rochester, MN 55905-0001
Phone: (507) 284-2511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 600 N Wolfe St, Baltimore, MD 21287-0005 — (410) 955-5000

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 74769 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 32704 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 74769 (MN)

Record details

NPI number1134766959
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 1, 2019
Last updated in NPPESJune 16, 2025
Certification dateJune 16, 2025

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2022 (4 years in practice)
Group practice Mayo Clinic — 4796 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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