SOUTHWEST NEPHROLOGY ASSOCIATES, S.C.
NPI 1104925163
Clinic/Center - Ambulatory Surgical in Orland Park, IL

Active since September 22, 2006CLIA Certified · 2 labs
16605 107TH ST, ORLAND PARK, IL 60467(708) 226-9860 Get Directions Write a Review

NPPES record last updated: February 4, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 4, 2026, Mar 7, 2025, Jul 12, 2022 and 2 more (5 updates tracked since 2016).

About Southwest Nephrology Associates, S.c. NPPES

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

SOUTHWEST NEPHROLOGY ASSOCIATES, S.C. (NPI 1104925163) is a healthcare organization registered as an ambulatory surgical in Orland Park, Illinois and active in the NPI registry since September 2006. The organization holds 2 active CLIA laboratory certificates, maintains a secondary practice location in Evergreen Park, and lists Naomi Cassin, Credentialing Manager, as its authorized official.

NPPES Registry Identity

NPI1104925163
Entity TypeOrganization
Primary Taxonomy261QA1903X
Legal Business NameSOUTHWEST NEPHROLOGY ASSOCIATES, S.C.
Location Address16605 107TH STOrland Park, IL 60467-9016
Mailing Address120 W 22nd St, Ste 200Oak Brook, IL 60523-1563 · (630) 573-5000 · Fax (708) 422-7816
Organization SubpartNo
Authorized OfficialNaomi CassinCredentialing Manager · (331) 216-1156
Enumeration DateSeptember 22, 2006
Last NPPES UpdateFebruary 4, 20265 updates tracked since enumeration
NPPES CertifiedFebruary 4, 2026
✔ NPI 1104925163 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinic/Center · Ambulatory SurgicalAmbulatory Health Care Facilities
Taxonomy Code261QA1903X
Also ListedInternal Medicine · NephrologyTaxonomy 207RN0300X · License 042618498 (IL)
16605 107TH ST, Orland Park, IL 60467

Secondary Practice Location 1

Location 19125 S Pulaski RdEvergreen Park, IL 60805-1441 · Phone (708) 422-7715 · Fax (708) 422-7816

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Southwest Nephrology Associates, S.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

16

Medicare enrollment records show 16 clinicians reassign Medicare billing to Southwest Nephrology Associates, S.C., which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians by Medicare Specialty 2

Nephrology13
Nurse Practitioner3

Clinicians, nearest first (16)

Nephrology
NPI 1922138254
4400 W 95TH ST STE 112
Oak Lawn, IL 60453
(708) 684-7100
✔ PECOS✔ Accepts Medicare12 mi
Nephrology
NPI 1306879929
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nurse Practitioner
NPI 1114634805
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1245792175
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1588213094
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1205869815
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1285941153
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1063670719
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1144476912
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nurse Practitioner
NPI 1295379543
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1881851400
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1033514625
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1255356689
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nurse Practitioner
NPI 1831676014
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1093885972
9125 S PULASKI RD
Evergreen Park, IL 60805
(708) 422-7715
✔ PECOS✔ Accepts Medicare13 mi
Nephrology
NPI 1487005351
100 E LANCASTER AVE STE 130
Wynnewood, PA 19096
(610) 649-1175
✔ PECOS✔ Accepts Medicare670 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA 2

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 14D0419880

Southwest Nephrology Associates Sc · Evergreen Park, IL
Active · expires Aug 31, 2028
CLIA Number14D0419880
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorEjikeme Obasi M D
Laboratory Phone(708) 422-7715
Laboratory LocationSouthwest Nephrology Associates Sc9125 S Pulaski Rd, Evergreen Park, IL 60805
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 14D1030529

Southwest Nephrology Associates Sc · Orland Park, IL
Active · expires Sep 7, 2028
CLIA Number14D1030529
Laboratory TypePhysician Office
Certificate Effective DateSeptember 8, 2026
Certificate Expiration DateSeptember 7, 2028
Laboratory DirectorEjikeme Obasi M D
Laboratory Phone(708) 226-9860
Laboratory LocationSouthwest Nephrology Associates Sc16605 S 107th Court, Orland Park, IL 60467
CLIA data matches this NPI record on: Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Southwest Nephrology Associates, S.C.'s NPI number?

The NPI number for Southwest Nephrology Associates, S.C. is 1104925163. It was assigned to this organization in the NPPES registry on September 22, 2006.

Where is Southwest Nephrology Associates, S.C. located?

Southwest Nephrology Associates, S.C. is located at 16605 107th St, Orland Park, IL 60467. The listed phone number is (708) 226-9860.

What is Southwest Nephrology Associates, S.C.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Ambulatory Surgical, with taxonomy code 261QA1903X.

Is Southwest Nephrology Associates, S.C. enrolled in Medicare?

Yes. Southwest Nephrology Associates, S.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Southwest Nephrology Associates, S.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 16 clinicians in 2 Medicare specialties reassign their Medicare billing to Southwest Nephrology Associates, S.C.. 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. The largest specialties are Nephrology (13) and Nurse Practitioner (3). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Southwest Nephrology Associates, S.C. hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Southwest Nephrology Associates, S.C. accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Southwest Nephrology Associates, S.C. 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 Southwest Nephrology Associates, S.C. was last updated on February 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.