NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

David W. Chui, M.D.

Clinical Medical Laboratory in Chatsworth, CA · enumerated 2011 · authorized official David Chui, President.

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

National Provider Identifier

1073801577

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name David W. Chui, M.D.
Other name <Unavail>
Practice address 9301 Oakdale Ave, Suite 300, Chatsworth, CA, 91311
Phone (818) 718-9500
Fax (818) 337-7513
Enumeration date Jul 18, 2011
Last updated in NPPES Jul 18, 2011

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License 05D2021002 (CA) Primary

Authorized official

Name David Chui
Title President
Phone (408) 802-1170

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 type of organization is David W. Chui, M.D.?
David W. Chui, M.D. is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).
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.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-18.