NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Theodore Chiwan Ng, M.D.

Pediatrics Physician in La Mesa, CA · enumerated 2008 · practices at Kaiser Foundation Health Plan Inc.

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

National Provider Identifier

1689841322

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Registry record

Entity type Individual (Type 1)
Name Dr. Theodore Chiwan Ng
Credential M.D.
Sex Male
Practice address 3875 Avocado Blvd, La Mesa, CA, 91941
Phone (800) 290-5828
Enumeration date May 12, 2008
Last updated in NPPES Dec 1, 2021

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License A97477 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

How do I verify Theodore Ng's NPI record?
Cross-check NPI 1689841322 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1689841322 active?
Yes, as of the latest NPPES snapshot, NPI 1689841322 is active (record last updated 2021-12-01).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-01.