Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Childrens Kidney Specialists Sc

Pediatric Nephrology Physician in Highland Park, IL · enumerated 2007 · authorized official Ronald Kallen, President Owner.

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

National Provider Identifier

1134316680

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Registry record

Entity type Organization (Type 2)

Legal business name Childrens Kidney Specialists Sc

Practice address 1954 1st St, Suite 200, Highland Park, IL, 60035

Phone (847) 433-3345

Fax (847) 433-4426

Enumeration date Sep 28, 2007

Last updated in NPPES Jan 22, 2008

Taxonomy & classification

2080P0210X Pediatric Nephrology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Ronald Kallen

Title President Owner

Phone (847) 433-3345

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.

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Frequently asked questions

Where is Childrens Kidney Specialists Sc located?

The practice location on file with NPPES is in Highland Park, IL.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-01-22. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Julian Freeman Internal Medicine Physician · Highland Park, IL NPI 1770140006

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-22.