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

Katie O'Sullivan

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1902038094

Katie O'Sullivan is an Endocrinology in Chicago, Illinois. Graduated from Loyola University of Chicago, Stritch School of Medicine in 2009, 17 years ago. Practices with University of Chicago, a 1,681-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
17
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
IL
In the registry since
2009
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Practice location Address checks out

5841 S Maryland Ave
Chicago, IL 60637-1443
Phone: (888) 824-0200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 036132084 (IL)

Record details

NPI number1902038094
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedAugust 22, 2009
Last updated in NPPESOctober 24, 2022
Mailing address150 Harvester Dr, Suite 300, Burr Ridge, IL 60527-5919

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice University Of Chicago — 1681 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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