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

Hoiwan Cheung

Diagnostic Radiology Physician in Oakland, CA · enumerated 2017.

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

National Provider Identifier

1861923351

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Registry record

Entity type Individual (Type 1)

Name Hoiwan Cheung

Sex Female

Practice address Oakland, CA, 94611

Phone (510) 752-1933

Enumeration date Mar 25, 2017

Last updated in NPPES Apr 12, 2023

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

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD61193509 (WA) Primary

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

Where does Hoiwan Cheung practice?

The practice location on file with NPPES is in Oakland, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Hoiwan Cheung?

The National Provider Identifier (NPI) for Hoiwan Cheung is 1861923351, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-12.