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

Dr. Katelyn Ostendorf Stepan, MD

Individual provider Otolaryngology Physician · NPI 1326468489

Dr. Katelyn Ostendorf Stepan, MD is an Otolaryngology in Chicago, Illinois. Graduated from Washington University School of Medicine in 2014, 12 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Missouri.

Years since qualifying
12
Trained at
Washington University School of Medicine
Licensed in
IL, MO
In the registry since
2014
Specialties on file
2
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

676 N Saint Clair St Ste 1200
Chicago, IL 60611-3068
Phone: (312) 695-8182
Fax: (312) 695-4303
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4921 Parkview Pl, Saint Louis, MO 63110-1032 — (314) 362-7509

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 036153453 (IL)
Otolaryngology Physician Taxonomy 207Y00000X · Licence 2019013305 (MO)

Record details

NPI number1326468489
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 16, 2014
Last updated in NPPESApril 6, 2026
Certification dateApril 6, 2026

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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