SOUTHERN ILLINOIS ASSOCIATES LLC
NPI 1962427856
Psychiatry & Neurology - Psychiatry in Maryville, IL

Q: What is Southern Illinois Associates LLC's NPI number?

The NPI number for Southern Illinois Associates LLC is 1962427856. It was assigned to this organization in the NPPES registry on July 13, 2006.

Q: What is Southern Illinois Associates LLC's specialty?

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

Active since July 13, 2006CLIA 14D2225919 · Waiver

6805 STATE ROUTE 162 STE 201, MARYVILLE, IL 62062(618) 288-5019(618) 288-5059 Get Directions Write a Review

NPPES record last updated: April 6, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 6, 2026, Aug 18, 2023, May 12, 2021 and 1 more (4 updates tracked since 2018).

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About Southern Illinois Associates Llc NPPES

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

SOUTHERN ILLINOIS ASSOCIATES LLC (NPI 1962427856) is a healthcare organization registered as a psychiatry in Maryville, Illinois and active in the NPI registry since July 2006. The organization holds a CLIA Waiver certificate valid through May 24, 2027 and lists Sanjay Nigam, President, as its authorized official.

NPPES Registry Identity

NPI1962427856

Entity TypeOrganization

Primary Taxonomy2084P0800X

Legal Business NameSOUTHERN ILLINOIS ASSOCIATES LLC

Location Address6805 STATE ROUTE 162 STE 201Maryville, IL 62062-8530

Mailing Address6805 State Route 162 Ste 201Maryville, IL 62062-8530 · (618) 288-5019 · Fax (618) 288-5059

Phone(618) 288-5019

Fax(618) 288-5059

Organization SubpartNo

Authorized OfficialSanjay NigamPresident · (618) 288-5019

Enumeration DateJuly 13, 2006

Last NPPES UpdateApril 6, 20264 updates tracked since enumeration

NPPES CertifiedApril 6, 2026

✔ NPI 1962427856 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ 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.

Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X

6805 STATE ROUTE 162 STE 201, Maryville, IL 62062

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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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 14D2225919

Southern Illinois Associates LLC · Maryville, IL

Active · expires May 24, 2027

CLIA Number14D2225919

Laboratory TypePhysician Office

Certificate Effective DateMay 25, 2025

Certificate Expiration DateMay 24, 2027

Laboratory DirectorSanjay Nigam M D

Laboratory Phone(618) 288-5019

Laboratory LocationSouthern Illinois Associates LLC6805 State Route 162 - Ste 201, Maryville, IL 62062

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

THENA GIDGET POTEAT M.D.

Psychiatry & Neurology (Psychiatry)