SOUTHERN ILLINOIS ASSOCIATES LLC
NPI 1962427856
Psychiatry & Neurology - Psychiatry in Maryville, IL
NPI Status: Active since July 13, 2006
Contact Information
6805 STATE ROUTE 162 STE 201
MARYVILLE, IL
ZIP 62062
Phone: (618) 288-5019
Fax: (618) 288-5059
- Organization
- Psychiatry & Neurology
- Psychiatry
- CLIA Number: 14D2225919
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 05-24-2027
About SOUTHERN ILLINOIS ASSOCIATES LLC
This page provides the complete NPI Profile along with additional information for Southern Illinois Associates Llc, a provider established in Maryville, Illinois operating as a Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1962427856 assigned on July 2006. The practitioner's primary taxonomy code is 2084P0800X. The provider is registered as an organization and their NPI record was last updated April 2026. Southern Illinois Associates Llc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Sanjay Nigam Md (President)
- NPI
- 1962427856
- Provider Name
- SOUTHERN ILLINOIS ASSOCIATES LLC
- Entity Type
- Organization
- Location Address
- 6805 STATE ROUTE 162 STE 201 MARYVILLE, IL 62062
- Location Phone
- (618) 288-5019
- Location Fax
- (618) 288-5059
- Mailing Address
- 6805 STATE ROUTE 162 STE 201 MARYVILLE, IL 62062
- Mailing Phone
- (618) 288-5019
- Mailing Fax
- (618) 288-5059
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 07-13-2006
- Last Update Date
- 04-06-2026
- Code Navigator
A psychiatrist like Southern Illinois Associates Llc are primary mental health physicians diagnose and treat mental illnesses through psychotherapy, psychoanalysis, hospitalization and medication. Psychiatrist help patients find solutions through changes in their behavioral patterns, explorations of experiences, group and family therapy.
Location Map
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
Psychiatry & Neurology Psychiatry
- Taxonomy Code
- 2084P0800X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- 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.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 363LF0000X | Physician Assistants & Advanced Practice Nursing Providers | Nurse Practitioner |
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
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
- 14D2225919
- Facility Type
- Physician Office
- Certificate Effective Date
- May 25, 2025
- Certificate Expiration Date
- May 24, 2027
- Laboratory Director
- SANJAY NIGAM M D
- Certificate Type
- Certificate of Waiver
- Certificate Type Description
- This CLIA certificate is issued to Southern Illinois Associates Llc to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.
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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 1962427856, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 64 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 10 providers are registered at the same or a nearby location.
MARYVILLE, IL 62062
MARYVILLE, IL 62062
MARYVILLE, IL 62062
MARYVILLE, IL 62062
MARYVILLE, IL 62062
MARYVILLE, IL 62062
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1962427856, enumerated as an "organization" on July 13, 2006.
The provider is located at 6805 STATE ROUTE 162 STE 201 MARYVILLE, IL 62062 and the phone number is (618) 288-5019.
Psychiatry & Neurology with taxonomy code 2084P0800X and a focus in Psychiatry.
