NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

David C Chua, MD Sc Ltd

Gastroenterology Physician in Oakbrook Terrace, IL · enumerated 2007 · authorized official David Chua, President.

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

National Provider Identifier

1225210214

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name David C Chua, MD Sc Ltd
Other name <Unavail>
Practice address 1s280 Summit Ave, Ct A, Oakbrook Terrace, IL, 60181
Fax (630) 889-8977
Enumeration date Nov 30, 2007
Last updated in NPPES Jul 23, 2011

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name David Chua
Title President

Other identifiers

Identifier Type State Issuer
036069933 Medicaid IL -

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 a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is David C Chua, MD Sc Ltd?
David C Chua, MD Sc Ltd is registered in NPPES as a Gastroenterology Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-23.