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

Washington University Physicians in Illinois, Inc

Organization Multi-Specialty Clinic/Center · NPI 1477076263

Washington University Physicians in Illinois, Inc is a Multi-Specialty Clinic/Center in O Fallon, Illinois. Registered with an NPI since 2017.

In the registry since
2017
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1414 Cross St
O Fallon, IL 62269-2988
Phone: (314) 273-0770
Fax: (314) 273-0470
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Multi-Specialty Clinic/Center (primary) Taxonomy 261QM1300X

Record details

NPI number1477076263
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Cathy Eghigian — Senior Director Managed Care · (314) 273-0770
Other names Wupi - Internal Medicine; Washington University
NPI enumeratedJuly 24, 2017
Last updated in NPPESApril 25, 2025
Certification dateApril 25, 2025
Mailing addressPo Box 7412011, Chicago, IL 60674-2011

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