Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Washington University Physicians in Illinois, Inc

Occupational Therapist in O Fallon, IL · enumerated 2018 · authorized official Cathy Eghigian, Senior Director Managed Care.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1891265039

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Registry record

Entity type Organization (Type 2)

Legal business name Washington University Physicians in Illinois, Inc

Other name <Unavail>

Practice address 1414 Cross St, O Fallon, IL, 62269

Phone (314) 286-2669

Fax (314) 286-1600

Enumeration date Nov 30, 2018

Last updated in NPPES Apr 25, 2025

Taxonomy & classification

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

Authorized official

Name Cathy Eghigian

Title Senior Director Managed Care

Phone (314) 273-0770

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for Washington University Physicians in Illinois, Inc?

NPPES lists Cathy Eghigian (Senior Director Managed Care) as the authorized official for this organization.

What is the NPI number for Washington University Physicians in Illinois, Inc?

The NPI for Washington University Physicians in Illinois, Inc is 1891265039, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Washington University Physicians in Illinois, Inc Multi-Specialty Clinic/Center · O Fallon, IL NPI 1477076263 Washington University Physicians in Illinois, Inc. Multi-Specialty Clinic/Center · O Fallon, IL NPI 1528569845 Washington University Physicians in Illinois, Inc. Multi-Specialty Clinic/Center · Shiloh, IL NPI 1700374105

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-25.