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

Claire Catherine Oosterbaan, DO

Individual provider Family Medicine Physician · NPI 1083309918

Claire Catherine Oosterbaan, DO is a Family Medicine Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2023.

Licensed in
IL
In the registry since
2023
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

4600 N Ravenswood Ave
Chicago, IL 60640-4510
Phone: (773) 561-7500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 036.179270 (IL)

Record details

NPI number1083309918
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 6, 2023
Last updated in NPPESAugust 6, 2026
Certification dateAugust 6, 2026

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