PSYCHIATRIC SERVICES OF SOUTHERN ILLINOIS, LLC
NPI 1689991291
Psychiatry & Neurology - Psychiatry in Belleville, IL

Q: What is Psychiatric Services Of Southern Illinois, LLC's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Active since April 23, 2010

2900 FRANK SCOTT PKWY W, SUITE 990, BELLEVILLE, IL 62223(618) 236-6501(618) 236-6551 Get Directions Write a Review

NPPES record last updated: August 5, 2010. Verified against the NPPES registry weekly; last sync: November 08, 2026.

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About Psychiatric Services Of Southern Illinois, Llc NPPES

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

PSYCHIATRIC SERVICES OF SOUTHERN ILLINOIS, LLC (NPI 1689991291) is a healthcare organization registered as a psychiatry in Belleville, Illinois and active in the NPI registry since April 2010. The organization lists Jeffrey S Chalfant, Psychiatrist, as its authorized official.

NPPES Registry Identity

NPI1689991291

Entity TypeOrganization

Primary Taxonomy2084P0800X

Legal Business NamePSYCHIATRIC SERVICES OF SOUTHERN ILLINOIS, LLC

Location Address2900 FRANK SCOTT PKWY W, SUITE 990Belleville, IL 62223-5000

Mailing Address2900 Frank Scott Pkwy W, Suite 990Belleville, IL 62223-5000 · (618) 236-6501 · Fax (618) 236-6551

Phone(618) 236-6501

Fax(618) 236-6551

Organization SubpartNo

Authorized OfficialJeffrey S ChalfantPsychiatrist · (618) 236-6501

Enumeration DateApril 23, 2010

Last NPPES UpdateAugust 5, 2010

✔ NPI 1689991291 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

2900 FRANK SCOTT PKWY W, Belleville, IL 62223

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Other Identifiers 2

OtherK25958IL · Medicare Id

Medicare UPINH49780IL

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Psychiatric Services Of Southern Illinois, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 3 clinicians reassign Medicare billing to Psychiatric Services Of Southern Illinois, LLC, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Jeffrey Chalfant, DO

Psychiatry

NPI 1811935166

2900 FRANK SCOTT PKWY W SUITE 990
Belleville, IL 62223

(618) 236-6501

✔ PECOS✔ Accepts Medicare1.8 mi

John Darr, LCSW

Clinical Social Worker

NPI 1912936386

6 EMERALD TER SUITE 4
Swansea, IL 62226

(618) 234-5976

✔ PECOS✔ Accepts Medicare2.8 mi

Julia Ruckman, MSW, LCSW

Clinical Social Worker

NPI 1356599971

109 E MAPLE ST
Gillespie, IL 62033

(217) 839-1526

✔ PECOS42 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 Psychiatric Services Of Southern Illinois, LLC's NPI number?

The NPI number for Psychiatric Services Of Southern Illinois, LLC is 1689991291. It was assigned to this organization in the NPPES registry on April 23, 2010.

Where is Psychiatric Services Of Southern Illinois, LLC located?

Psychiatric Services Of Southern Illinois, LLC is located at 2900 Frank Scott Pkwy W Suite 990, Belleville, IL 62223. The listed phone number is (618) 236-6501.

What is Psychiatric Services Of Southern Illinois, LLC's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Psychiatric Services Of Southern Illinois, LLC enrolled in Medicare?

Yes. Psychiatric Services Of Southern Illinois, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Psychiatric Services Of Southern Illinois, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Psychiatric Services Of Southern Illinois, LLC, in Clinical Social Worker and Psychiatry. 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. Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Psychiatric Services Of Southern Illinois, LLC accept?

Health plans from Anthem Blue Cross and Blue Shield list Psychiatric Services Of Southern Illinois, LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Psychiatric Services Of Southern Illinois, LLC was last updated on August 5, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.