Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SOUTHERN IL INSTITUTE OF BEHAVIORAL HEALTH PC
NPI 1346562881
Psychologist - Clinical in Glen Carbon, IL

Active since February 25, 2010
9 JUNCTION DR W STE 3, GLEN CARBON, IL 62034(618) 710-4123(618) 731-4082 Get Directions Write a Review

NPPES record last updated: September 1, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Southern Il Institute Of Behavioral Health Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SOUTHERN IL INSTITUTE OF BEHAVIORAL HEALTH PC (NPI 1346562881) is a healthcare organization registered as a clinical in Glen Carbon, Illinois and active in the NPI registry since February 2010. The organization lists Shannon Nicole Walker, Owner/clinical Psychologist, as its authorized official.

NPPES Registry Identity

NPI1346562881
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameSOUTHERN IL INSTITUTE OF BEHAVIORAL HEALTH PC
Location Address9 JUNCTION DR W STE 3Glen Carbon, IL 62034-2931
Mailing AddressPo Box 98Edwardsville, IL 62025-0098 · (618) 710-4123 · Fax (618) 731-4082
Fax(618) 731-4082
Organization SubpartNo
Authorized OfficialShannon Nicole WalkerOwner/clinical Psychologist · (618) 710-4123
Enumeration DateFebruary 25, 2010
Last NPPES UpdateSeptember 1, 2026
NPPES CertifiedSeptember 1, 2026
✔ NPI 1346562881 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in IL · 071.007664
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
Also ListedCounselor · ProfessionalTaxonomy 101YP2500X · License 018.0007365 (IL)
Also ListedSocial Worker · ClinicalTaxonomy 1041C0700X
9 JUNCTION DR W STE 3, Glen Carbon, IL 62034

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Southern Il Institute Of Behavioral Health Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Southern Il Institute Of Behavioral Health PC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 6 within 10 miles. They are listed nearest first.

Clinicians, nearest first (6)

Clinical Social Worker
NPI 1144771734
9 JUNCTION DR W STE 3
Glen Carbon, IL 62034
(618) 710-4123
✔ PECOS✔ Accepts MedicareSame address
Clinical Social Worker
NPI 1659969707
9 JUNCTION DR W
Glen Carbon, IL 62034
(618) 806-0970
✔ PECOS✔ Accepts Medicare0.1 mi
Clinical Social Worker
NPI 1609329523
9 JUNCTION DR W SUITE 3
Glen Carbon, IL 62034
(618) 710-4123
✔ PECOS✔ Accepts Medicare0.1 mi
Mental Health Counselor
NPI 1750556841
9 JUNCTION DR W SUITE 3
Glen Carbon, IL 62034
(618) 710-4123
✔ PECOS✔ Accepts Medicare0.1 mi
Mental Health Counselor
NPI 1013245737
9 JUNCTION DR W STE 3
Glen Carbon, IL 62034
(618) 710-4123
✔ PECOS✔ Accepts Medicare0.1 mi
Clinical Psychologist
NPI 1801020573
9 JUNCTION DR W SUITE 6
Glen Carbon, IL 62034
(618) 710-4123
✔ PECOS✔ Accepts Medicare0.1 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Southern Il Institute Of Behavioral Health PC's NPI number?

The NPI number for Southern Il Institute Of Behavioral Health PC is 1346562881. It was assigned to this organization in the NPPES registry on February 25, 2010.

Where is Southern Il Institute Of Behavioral Health PC located?

Southern Il Institute Of Behavioral Health PC is located at 9 Junction Dr W Ste 3, Glen Carbon, IL 62034. The listed phone number is (618) 710-4123.

What is Southern Il Institute Of Behavioral Health PC's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Southern Il Institute Of Behavioral Health PC enrolled in Medicare?

Yes. Southern Il Institute Of Behavioral Health PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Southern Il Institute Of Behavioral Health PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to Southern Il Institute Of Behavioral Health PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Clinical Social Worker (3), Mental Health Counselor (2) and Clinical Psychologist (1). Of these, 1 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Southern Il Institute Of Behavioral Health PC was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.