Southern Illinois Associates LLC

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

Legal business name

SOUTHERN ILLINOIS ASSOCIATES LLC

Practice address

6805 State Route 162 Ste 201
Maryville, IL 62062-8530

Phone

(618) 288-5019

Fax

(618) 288-5059

NPI assigned

Jul 13, 2006

Last updated

Apr 6, 2026By the provider in NPPES

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Sanjay Nigam, MDNPI 1942278973

Title

President

Phone

(618) 288-5019

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in IL

Enrollment records 1

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/17590/brand/1/csg/1/fhir/r4
• FHIR API: https://fhir4.healow.com/fhir/r4/AFHDDD

Practitioners 21

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Sanjay K Nigam, MD

  • Psychiatry Physician
  • Maryville, IL
  • NPI 1942278973
  Medicare reassignment Care Compare group NPD Authorized official
• Albert G. Andrews, LCPC

  • Mental Health Counselor
  • Maryville, IL
  • NPI 1821112335
  Medicare reassignment Care Compare group NPD
• Riley Renee Clubb, BSN, RN, DNP, PMHNP

  • Psychiatric/Mental Health Nurse Practitioner
  • Litchfield, IL
  • NPI 1881387660
  Medicare reassignment Care Compare group NPD
• Jenna Michelle Collins-Reed, LCSW

  • Clinical Social Worker
  • Glen Carbon, IL
  • NPI 1346482494
  Medicare reassignment Care Compare group NPD
• Amy Lynn Hemann, LCSW

  • Clinical Social Worker
  • Maryville, IL
  • NPI 1558598102
  Medicare reassignment Care Compare group NPD
• Emily Hinderliter

  • Counselor
  • Maryville, IL
  • NPI 1417459173
  Medicare reassignment Care Compare group NPD
• Diana K Jarman, LCSW

  • Clinical Social Worker
  • Maryville, IL
  • NPI 1932419710
  Medicare reassignment Care Compare group NPD
• Joanna Kae Kurilla, PMHNP

  • Psychiatric/Mental Health Nurse Practitioner
  • Maryville, IL
  • NPI 1760052310
  Medicare reassignment Care Compare group NPD
• Talia Renea Lomax, PMHNP-BC

  • Psychiatric/Mental Health Nurse Practitioner
  • Maryville, IL
  • NPI 1801782404
  Medicare reassignment Care Compare group NPD
• Jaime Renee Mendoza, PMHNP

  • Psychiatric/Mental Health Nurse Practitioner
  • Maryville, IL
  • NPI 1689915811

  Family

  Medicare reassignment Care Compare group NPD
• Amanda Rea Miller, RN, MSN, PMHNP-BC

  • Psychiatric/Mental Health Nurse Practitioner
  • Maryville, IL
  • NPI 1194538074
  Medicare reassignment Care Compare group NPD
• McKenzie Leigh Nikonovich, PMHNP-BC

  • Psychiatric/Mental Health Nurse Practitioner
  • Maryville, IL
  • NPI 1518810852
  Medicare reassignment Care Compare group NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1152748800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1775433600000",
    "number": "1962427856",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6805 STATE ROUTE 162 STE 201",
            "city": "MARYVILLE",
            "state": "IL",
            "postal_code": "620628530",
            "telephone_number": "618-288-5019",
            "fax_number": "618-288-5059"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6805 STATE ROUTE 162 STE 201",
            "city": "MARYVILLE",
            "state": "IL",
            "postal_code": "620628530",
            "telephone_number": "618-288-5019",
            "fax_number": "618-288-5059"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "SOUTHERN ILLINOIS ASSOCIATES LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-07-13",
        "last_updated": "2026-04-06",
        "certification_date": "2026-04-06",
        "status": "A",
        "authorized_official_last_name": "NIGAM",
        "authorized_official_first_name": "SANJAY",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "618-288-5019",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sujata Sitaula, MD
• Gregory Edward Skelly, PT, DPT
• Deborah A Slemer, M.S, CCC-SLP
• Kolin Smith, B.S. CADC
• Jessica Marie Soens, RN
• Southern Illinois Chiropractic Center
• Southern Illinois Surgical Consultants S.C.
• Michael Southwick, CRNA
• Spinally Better, LLC (Spinally Better Chiropractic)
• SPS Surgical Services, SC

• Psychiatry Physician in Maryville, IL
• Providers in Maryville, IL by specialty
• Psychiatry Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.