Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Illumihealth Ltd

Internal Medicine Physician in Vernon Hills, IL · enumerated 2024 · authorized official Tommy Kwak, President.

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

National Provider Identifier

1780432740

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Registry record

Entity type Organization (Type 2)

Legal business name Illumihealth Ltd

Practice address 270 Center Dr Ste 120, Vernon Hills, IL, 60061

Phone (224) 800-1060

Enumeration date May 7, 2024

Last updated in NPPES Sep 12, 2024

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

261QP2300X Primary Care Clinic/Center Ambulatory Health Care Facilities Secondary

Authorized official

Name Tommy Kwak

Title President

Phone (224) 800-1060

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 Illumihealth Ltd located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2024-09-12. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Tommy Kwak Internal Medicine Physician · Vernon Hills, IL NPI 1235472820

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-12.