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

Dr. Stephan Andrew Olaya

Individual provider Internal Medicine Physician · NPI 1801477047

Dr. Stephan Andrew Olaya is a Hospitalist in Chicago, Illinois. Graduated from University of Maryland School of Medicine in 2021, 5 years ago. Practices with The University of Chicago Medical Center, a 909-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
5
Trained at
University of Maryland School of Medicine
Licensed in
IL
In the registry since
2021
Specialties on file
3
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

5841 S Maryland Ave
Chicago, IL 60637-1443
Phone: (773) 702-6840
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

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 036169885 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125.078276 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1801477047
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 19, 2021
Last updated in NPPESJuly 10, 2024
Certification dateJuly 10, 2024

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 2021 (5 years in practice)
Group practice The University Of Chicago Medical Center — 909 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Chicago