Southwest Nephrology Associates, S.C.

Primary specialty

Ambulatory Surgical Clinic/CenterTaxonomy code 261QA1903X

Legal business name

SOUTHWEST NEPHROLOGY ASSOCIATES, S.C.

Practice address

16605 107TH St
Orland Park, IL 60467-9016

Phone

(708) 226-9860

NPI assigned

Sep 22, 2006

Last updated

Feb 4, 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

Ms. Naomi Cassin

Title

Credentialing Manager

Phone

(331) 216-1156

Specialties & licenses 2

Addresses

Electronic endpoints 1

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

Practitioners 19

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.

• Akash Ahuja, MD

  • Nephrology Physician
  • Evergreen Park, IL
  • NPI 1306879929
  Medicare reassignment Care Compare group NPD
• Vanessa Elizabeth Galloway, MSN, APRN, FNP-BC

  • Family Nurse Practitioner
  • Evergreen Park, IL
  • NPI 1114634805
  Medicare reassignment Care Compare group NPD
• Jeanette McLaughlin, MD

  • Nephrology Physician
  • Oak Lawn, IL
  • NPI 1922138254
  Medicare reassignment Care Compare group NPD
• Mahmoud Mohamed, MD

  • Nephrology Physician
  • Evergreen Park, IL
  • NPI 1588213094
  Medicare reassignment Care Compare group NPD
• Ejikeme O Obasi, MD

  • Nephrology Physician
  • Evergreen Park, IL
  • NPI 1205869815
  Medicare reassignment Care Compare group NPD
• Chijoke H Onyenwenyi, MD

  • Nephrology Physician
  • Evergreen Park, IL
  • NPI 1285941153
  Medicare reassignment Care Compare group NPD
• Amishi Patel, MD

  • Nephrology Physician
  • Evergreen Park, IL
  • NPI 1063670719
  Medicare reassignment Care Compare group NPD
• Priya Bhatia Raju, MD

  • Nephrology Physician
  • Evergreen Park, IL
  • NPI 1144476912
  Medicare reassignment Care Compare group NPD
• Clarence G Rojo, APN

  • Gerontology Nurse Practitioner
  • Evergreen Park, IL
  • NPI 1295379543
  Medicare reassignment Care Compare group NPD
• Natalie M Selk, MD

  • Nephrology Physician
  • Evergreen Park, IL
  • NPI 1881851400
  Medicare reassignment Care Compare group NPD
• George Sousanieh, MD

  • Nephrology Physician
  • Evergreen Park, IL
  • NPI 1033514625
  Medicare reassignment Care Compare group NPD
• Abraham Thomas, MD

  • Nephrology Physician
  • Evergreen Park, IL
  • NPI 1255356689
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1158883200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1770163200000",
    "number": "1104925163",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "120 W 22ND ST",
            "address_2": "STE 200",
            "city": "OAK BROOK",
            "state": "IL",
            "postal_code": "605231563",
            "telephone_number": "630-573-5000",
            "fax_number": "708-422-7816"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "16605 107TH ST",
            "city": "ORLAND PARK",
            "state": "IL",
            "postal_code": "604679016",
            "telephone_number": "708-226-9860"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9125 S Pulaski Rd",
            "address_purpose": "LOCATION",
            "city": "Evergreen Park",
            "state": "IL",
            "postal_code": "608051441",
            "country_code": "US",
            "telephone_number": "708-422-7715",
            "fax_number": "708-422-7816",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "SOUTHWEST NEPHROLOGY ASSOCIATES, S.C.",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-09-22",
        "last_updated": "2026-02-04",
        "certification_date": "2026-02-04",
        "status": "A",
        "authorized_official_last_name": "CASSIN",
        "authorized_official_first_name": "NAOMI",
        "authorized_official_title_or_position": "CREDENTIALING MANAGER",
        "authorized_official_telephone_number": "331-216-1156",
        "authorized_official_name_prefix": "Ms."
    },
    "taxonomies": [
        {
            "code": "261QA1903X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Ambulatory Surgical",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "IL",
            "license": "042618498",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "credentialing@nephdocs.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "120 W 22nd St",
            "city": "Oak Brook",
            "state": "IL",
            "country_code": "US",
            "postal_code": "605231557",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• Madison Spaargaren
• Lauren Ann Spakausky, RBT

• Ambulatory Surgical Clinic/Center in Orland Park, IL
• Providers in Orland Park, IL by specialty
• Ambulatory Surgical Clinic/Center in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 4, 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.