NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Nani Elk Grove

Nephrology Physician in Oak Brook, IL · enumerated 2012 · authorized official Manish Tanna, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1154675528

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Nani Elk Grove
Parent organization Nephrology Associates of Northern Illinois
Practice address 120 W 22nd St, Oak Brook, IL, 60523
Phone (630) 573-5000
Fax (708) 386-2839
Enumeration date Nov 6, 2012
Last updated in NPPES Feb 4, 2026

Taxonomy & classification

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Manish Tanna
Title President
Phone (630) 573-5000

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Nani Elk Grove?
The NPI for Nani Elk Grove is 1154675528, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Nani Elk Grove?
NPPES lists Manish Tanna (President) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-04.