Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Illinois Dietitians LLC

Registered Dietitian in Oak Park, IL · enumerated 2012 · authorized official Eileen Mccarthy, Registered Dietitian.

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

National Provider Identifier

1710241872

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Registry record

Entity type Organization (Type 2)

Legal business name Illinois Dietitians LLC

Practice address 715 Lake St Ste 220, Oak Park, IL, 60301

Phone (708) 285-1347

Fax (708) 356-6611

Enumeration date Jul 3, 2012

Last updated in NPPES Oct 21, 2024

Taxonomy & classification

133N00000X Nutritionist Dietary & Nutritional Service Providers Secondary

133NN1002X Nutrition Education Nutritionist Dietary & Nutritional Service Providers Secondary

133V00000X Registered Dietitian Dietary & Nutritional Service Providers Primary

133VN1004X Pediatric Nutrition Registered Dietitian Dietary & Nutritional Service Providers Secondary

133VN1005X Renal Nutrition Registered Dietitian Dietary & Nutritional Service Providers Secondary

133VN1006X Metabolic Nutrition Registered Dietitian Dietary & Nutritional Service Providers Secondary

Authorized official

Name Eileen Mccarthy

Title Registered Dietitian

Phone (708) 285-1347

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 Illinois Dietitians LLC located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2024-10-21. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Eileen Mccarthy Registered Dietitian · Oak Park, IL NPI 1265673958

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-21.