ASSOCIATES IN NEPHROLOGY, S.C.
NPI 1184694259
Internal Medicine - Nephrology in Chicago, IL

Active since January 23, 2006
210 S DESPLAINES ST, CHICAGO, IL 60661(312) 654-2721 Get Directions Write a Review

NPPES record last updated: March 18, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 18, 2026, Dec 18, 2024, Nov 18, 2024 and 4 more (7 updates tracked since 2018).

About Associates In Nephrology, S.c. NPPES

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

ASSOCIATES IN NEPHROLOGY, S.C. (NPI 1184694259) is a healthcare organization registered as a nephrology in Chicago, Illinois and active in the NPI registry since January 2006. The organization lists Amitabha Mitra, President, as its authorized official.

NPPES Registry Identity

NPI1184694259
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameASSOCIATES IN NEPHROLOGY, S.C.
Location Address210 S DESPLAINES STChicago, IL 60661-5500
Mailing Address4026 Paysphere CirChicago, IL 60674-0001 · (312) 654-2720 · Fax (312) 654-9930
Organization SubpartNo
Authorized OfficialAmitabha MitraPresident · (312) 654-2720
Enumeration DateJanuary 23, 2006
Last NPPES UpdateMarch 18, 20267 updates tracked since enumeration
NPPES CertifiedMarch 18, 2026
✔ NPI 1184694259 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in IL · 036133704
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
210 S DESPLAINES ST, Chicago, IL 60661

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)

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

Clinicians Billing Medicare Through This Organization

56

Medicare enrollment records show 56 clinicians reassign Medicare billing to Associates In Nephrology, S.C., which bills Medicare for the services they deliver. Of these, 8 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 5

Nephrology45
Nurse Practitioner6
Internal Medicine3
Diagnostic Radiology1
Registered Dietitian or Nutrition Professional1

Nearest to this location (20)

See all 56
Nephrology
NPI 1578742268
1634 W POLK ST
Chicago, IL 60612
(312) 423-4200
✔ PECOS✔ Accepts Medicare1.6 mi
Nephrology
NPI 1306887807
2721 N SPAULDING AVE
Chicago, IL 60647
(312) 654-2701
✔ PECOS✔ Accepts Medicare4.6 mi
Nephrology
NPI 1558597047
2721 N SPAULDING AVE
Chicago, IL 60647
(847) 394-1843
✔ PECOS✔ Accepts Medicare4.6 mi
Nephrology
NPI 1447211966
2608 W ADDISON ST
Chicago, IL 60618
(312) 654-2700
✔ PECOS✔ Accepts Medicare4.9 mi
Nephrology
NPI 1598708877
2608 W ADDISON ST
Chicago, IL 60618
(773) 756-3333
✔ PECOS✔ Accepts Medicare4.9 mi
Nephrology
NPI 1306045646
2740 W FOSTER AVE STE 207
Chicago, IL 60625
(773) 820-8502
✔ PECOS✔ Accepts Medicare6.8 mi
Nurse Practitioner
NPI 1750195087
6535 S WESTERN AVE
Chicago, IL 60636
(773) 778-7609
✔ PECOS8.0 mi
Nephrology
NPI 1538509971
6959 S PULASKI RD
Chicago, IL 60629
(312) 654-2720
✔ PECOS✔ Accepts Medicare9.2 mi
Nephrology
NPI 1003892043
675 W NORTH AVE STE 209
Melrose Park, IL 60160
(312) 654-2744
✔ PECOS✔ Accepts Medicare10 mi
Nephrology
NPI 1720058639
675 W NORTH AVE STE 309
Melrose Park, IL 60160
(312) 654-2744
✔ PECOS✔ Accepts Medicare10 mi
Nephrology
NPI 1275568578
675 W NORTH AVE STE 309
Melrose Park, IL 60160
(312) 654-2744
✔ PECOS✔ Accepts Medicare10 mi
Nephrology
NPI 1457678302
2315 E 93RD ST STE 337
Chicago, IL 60617
(708) 952-3040
✔ PECOS✔ Accepts Medicare12 mi
Nephrology
NPI 1871532796
3358 W 95TH ST
Evergreen Park, IL 60805
(708) 952-3040
✔ PECOS✔ Accepts Medicare12 mi
Nephrology
NPI 1841279981
3358 W 95TH ST
Evergreen Park, IL 60805
(708) 952-3040
✔ PECOS✔ Accepts Medicare12 mi
Registered Dietitian or Nutrition Professional
NPI 1730245077
2650 RIDGE AVE DIVISION OF NEPHROLOGY, RM 3213
Evanston, IL 60201
(847) 570-2512
✔ Accepts Medicare13 mi
Nurse Practitioner
NPI 1689293987
10801 S WESTERN AVE STE 201
Chicago, IL 60643
(773) 770-4824
✔ PECOS✔ Accepts Medicare13 mi
Diagnostic Radiology
NPI 1215148002
1701 W MONTEREY AVE STE 7B
Chicago, IL 60643
(773) 366-8035
✔ PECOS✔ Accepts Medicare14 mi
Internal Medicine
NPI 1073000410
1550 N NORTHWEST HWY STE 301
Park Ridge, IL 60068
(847) 294-5160
✔ PECOS✔ Accepts Medicare15 mi
Internal Medicine
NPI 1447491808
17800 KEDZIE AVE
Hazel Crest, IL 60429
(312) 654-2744
✔ PECOS✔ Accepts Medicare22 mi
Internal Medicine
NPI 1134668064
121 S WILKE RD STE 111
Arlington Heights, IL 60005
(847) 394-1843
✔ PECOS✔ Accepts Medicare23 mi
See all 56 clinicians

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

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

The NPI number for Associates In Nephrology, S.C. is 1184694259. It was assigned to this organization in the NPPES registry on January 23, 2006.

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

Associates In Nephrology, S.C. is located at 210 S Desplaines St, Chicago, IL 60661. The listed phone number is (312) 654-2721.

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

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

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

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

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

According to the CMS Revalidation Reassignment List (October 2026 release), 56 clinicians in 5 Medicare specialties reassign their Medicare billing to Associates In Nephrology, 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 (45), Nurse Practitioner (6) and Internal Medicine (3). Of these, 8 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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

Health plans from Ambetter Health, Ambetter Health of Delaware and Anthem Blue Cross and Blue Shield list Associates In Nephrology, 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 Associates In Nephrology, S.C. was last updated on March 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.