Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. James Wah Wong, MD

Critical Care Medicine (Internal Medicine) Physician in Pasadena, CA · enumerated 2006.

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

National Provider Identifier

1801811955

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Registry record

Entity type Individual (Type 1)

Name Mr. James Wah Wong

Credential MD

Sex Male

Practice address Pasadena, CA, 91105

Phone (626) 578-7557

Enumeration date Jul 12, 2006

Last updated in NPPES Sep 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License A22857 (CA) Primary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License A22857 (CA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00A228570	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

Is NPI 1801811955 active?

Yes, as of the latest NPPES snapshot, NPI 1801811955 is active (record last updated 2025-09-11).

How do I verify James Wong's NPI record?

Cross-check NPI 1801811955 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.