NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Frederic J Leong MD Inc

Pediatric Cardiology Physician in Thousand Oaks, CA · enumerated 2007 · authorized official Patricia Waite, Office Mgr.

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

National Provider Identifier

1801953237

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Frederic J Leong MD Inc
Practice address 555 Marin St., Suite #220, Thousand Oaks, CA, 91360
Fax (805) 497-0864
Enumeration date Jan 3, 2007
Last updated in NPPES Jan 12, 2011

Taxonomy & classification

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License G71490 (CA) Primary

Authorized official

Name Patricia Waite
Title Office Mgr

Other identifiers

Identifier Type State Issuer
00G714901 Medicaid CA -

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

Who is the authorized official for Frederic J Leong MD Inc?
NPPES lists Patricia Waite (Office Mgr) as the authorized official for this organization.
What is the NPI number for Frederic J Leong MD Inc?
The NPI for Frederic J Leong MD Inc is 1801953237, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-12.