WASHINGTON UNIVERSITY PHYSICIANS IN ILLINOIS, INC
NPI 1477076263
Clinic/Center - Multi-Specialty in O Fallon, IL

NPI Status: Active since July 24, 2017

Contact Information

1414 CROSS ST
O FALLON, IL
ZIP 62269
Phone: (314) 273-0770
Fax: (314) 273-0470

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  • Organization
  • Clinic/Center
  • Multi-Specialty
  • CLIA Number: 26D1095501
  • CLIA Cert. Type: Independent
  • CLIA Exp. Date: 04-20-2026

About WASHINGTON UNIVERSITY PHYSICIANS IN ILLINOIS, INC

This page provides the complete NPI Profile along with additional information for Washington University Physicians In Illinois, Inc, a provider established in O Fallon, Illinois operating as a Clinic/center, focusing in multi-specialty . The healthcare provider is registered in the NPI registry with number 1477076263 assigned on July 2017. The practitioner's primary taxonomy code is 261QM1300X. The provider is registered as an organization and their NPI record was last updated one year ago. The provider's . The authorized official of this NPI record is Cathy Eghigian (Senior Director Managed Care)

NPI
1477076263
Provider Legal Name
WASHINGTON UNIVERSITY PHYSICIANS IN ILLINOIS, INC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
1414 CROSS ST O FALLON, IL 62269
Location Phone
(314) 273-0770
Location Fax
(314) 273-0470
Mailing Address
PO BOX 7412011 CHICAGO, IL 60674
Mailing Phone
(314) 273-0770
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
07-24-2017
Last Update Date
04-25-2025
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Clinic/Center Multi-Specialty

Taxonomy Code
261QM1300X
Type
Ambulatory Health Care Facilities

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

CATHY EGHIGIAN

Authorized Official Title
SENIOR DIRECTOR MANAGED CARE
Authorized Official Phone
(314) 273-0770

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
26D1095501
Facility Type
Independent
Certificate Effective Date
April 21, 2024
Certificate Expiration Date
April 20, 2026
Laboratory Director
DR. CHRISTOPHER FARNSWORTH
Certificate Type
Certificate of Accreditation
Certificate Type Description
This is a CLIA certificate is issued to Washington University Physicians In Illinois, Inc on the basis of the laboratory's accreditation by an accreditation organization approved by CMS. This type of certificate is issued to a laboratories tha perform nonwaived (moderate and/or high complexity) testing.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1477076263, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
7
Unchanged
Pos 5
0
Doubled → 0
Pos 6
7
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
2
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
3
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 7 → 14 → 5 0 → 0 6 → 12 → 3 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 4 + 1 + 4 + 7 + 0 + 7 + 1 + 2 + 2 + 1 + 2 + 24 = 57

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1477076263.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Clinic/Center (Multi-Specialty)
1414 CROSS ST
O FALLON, IL 62269
Clinic/Center (Multi-Specialty)
1414 CROSS ST
SHILOH, IL 62269
Occupational Therapist
1414 CROSS ST
O FALLON, IL 62269

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1477076263, enumerated as an "organization" on July 24, 2017.

The provider is located at 1414 CROSS ST O FALLON, IL 62269 and the phone number is (314) 273-0770.

Clinic/Center with taxonomy code 261QM1300X and a focus in Multi-Specialty.