Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Cornelia V. Tandez, M.D.,Ltd

Clinic/Center in Niles, IL · enumerated 2008 · authorized official Cornelia Tandez, President.

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

National Provider Identifier

1356514434

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Cornelia V. Tandez, M.D.,Ltd

Practice address 8248 W Ballard Rd, Niles, IL, 60714

Phone (773) 327-2760

Fax (773) 327-2764

Enumeration date Apr 9, 2008

Last updated in NPPES Apr 9, 2008

Taxonomy & classification

261Q00000X Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Cornelia Tandez

Title President

Phone (847) 298-6153

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

Where is Cornelia V. Tandez, M.D.,Ltd located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-04-09. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-09.