1. Home
  2. Directory
  3. Illinois
  4. Oak Brook
  5. Internal Medicine
  6. NPI Profile

NANI ELK GROVE
NPI 1154675528
Internal Medicine - Nephrology in Oak Brook, IL

Active since November 06, 2012
120 W 22ND ST, OAK BROOK, IL 60523(630) 573-5000(708) 386-2839 Get Directions Write a Review

NPPES record last updated: February 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 4, 2026, Mar 7, 2025 (2 updates tracked since 2025).

About Nani Elk Grove NPPES

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

NANI ELK GROVE (NPI 1154675528) is a healthcare organization registered as a nephrology in Oak Brook, Illinois and active in the NPI registry since November 2012. The organization lists Manish M. Tanna, President, as its authorized official.

NPPES Registry Identity

NPI1154675528
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameNANI ELK GROVE
Location Address120 W 22ND STOak Brook, IL 60523-1563
Mailing Address120 W 22nd StOak Brook, IL 60523-1563 · (630) 573-5000 · Fax (847) 952-9338
Phone(630) 573-5000
Fax(708) 386-2839
Organization SubpartYesParent: Nephrology Associates Of Northern Illinois
Authorized OfficialManish M. TannaPresident · (630) 573-5000
Enumeration DateNovember 6, 2012
Last NPPES UpdateFebruary 4, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 4, 2026
✔ NPI 1154675528 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
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.
120 W 22ND ST, Oak Brook, IL 60523
Open in Google Maps ↗

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

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ARTHUR M MORRIS MD
Internal Medicine (Nephrology)
120 W 22ND ST
OAK BROOK, IL 60523
Dupage County (630) 974-5230
NEPHROLOGY ASSOCIATES OF NORTHERN ILLINOIS, LTD.
Internal Medicine (Nephrology)
120 W 22ND ST
OAK BROOK, IL 60523
Dupage County (630) 573-5000
NANI-IHP LLC
Internal Medicine (Nephrology)
120 W 22ND ST
OAK BROOK, IL 60523
Dupage County (630) 573-5000

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 Nani Elk Grove's NPI number?

The NPI number for Nani Elk Grove is 1154675528. It was assigned to this organization in the NPPES registry on November 6, 2012.

Where is Nani Elk Grove located?

Nani Elk Grove is located at 120 W 22nd St, Oak Brook, IL 60523. The listed phone number is (630) 573-5000.

What is Nani Elk Grove's specialty?

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

When was this NPI record last updated?

The NPPES record for Nani Elk Grove 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 6 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.