NPIMap

Organization Active NPI

Washington University Physicians in Illinois, Inc.

  • Multi-Specialty Clinic/Center
  • O'Fallon, IL
National Provider Identifier
1528569845
Registry record updated Apr 25, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Multi-Specialty Clinic/CenterTaxonomy code 261QM1300X
Legal business name
WASHINGTON UNIVERSITY PHYSICIANS IN ILLINOIS, INC.
Practice address
1414 Cross St
O Fallon, IL 62269-2988
Phone
(314) 286-1264
Fax
(314) 286-1258
NPI assigned
Feb 22, 2018
Last updated
Apr 25, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Apr 25, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Cathy Eghigian
Title
Senior Director Managed Care
Phone
(314) 273-0770

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Multi-Specialty Clinic/Center 261QM1300X Primary

Addresses

Primary practice location

1414 Cross St
O Fallon, IL 62269-2988

Mailing address

PO Box 7412011
Chicago, IL 60674-2011
Phone (314) 273-0770

Other names 2

  • WUPI - Pediatrics Other name
  • Washington University Other name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20180227002018 IL Part B Supplier - Clinic/Group Practice 4789945163 Receives reassigned benefits from 520 practitioners
12 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Columbia, IL; Maryville, IL; Edwardsville, IL; Godfrey, IL; Highland, IL; Mount Vernon, IL; O Fallon, IL; Oak Brook, IL…

Other NPIs on the same Medicare enrollment 12

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

National Provider Directory

National Provider Directory
Tax ID family
Washington University Inc8 organizations share this tax ID, including this one

Other organizations with this tax ID 7

Organizations that report the same tax identification number in the National Provider Directory.

Practitioners & affiliated clinicians

Practitioners 64

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 64

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1519257600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1745539200000",
    "number": "1528569845",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412011",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742011",
            "telephone_number": "314-273-0770"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1414 CROSS ST",
            "city": "O FALLON",
            "state": "IL",
            "postal_code": "622692988",
            "telephone_number": "314-286-1264",
            "fax_number": "314-286-1258"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WASHINGTON UNIVERSITY PHYSICIANS IN ILLINOIS, INC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2018-02-22",
        "last_updated": "2025-04-25",
        "certification_date": "2025-04-25",
        "status": "A",
        "authorized_official_last_name": "EGHIGIAN",
        "authorized_official_first_name": "CATHY",
        "authorized_official_title_or_position": "SENIOR DIRECTOR MANAGED CARE",
        "authorized_official_telephone_number": "314-273-0770"
    },
    "taxonomies": [
        {
            "code": "261QM1300X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Multi-Specialty",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "WUPI - Pediatrics",
            "code": "5",
            "type": "Other Name"
        },
        {
            "organization_name": "Washington University",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in O'Fallon, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 25, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.