Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Cheung
Pharmacist in Walnut Creek, CA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124550900
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Registry record
Entity type Individual (Type 1)
Name John Cheung
Sex Male
Practice address 2880 Shadelands Dr Ste 201, Walnut Creek, CA, 94598
Phone (925) 997-9886
Enumeration date Mar 30, 2017
Last updated in NPPES Mar 30, 2017
Taxonomy & licenses
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.
Frequently asked questions
What is the NPI number for John Cheung?
The National Provider Identifier (NPI) for John Cheung is 1124550900, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Cheung practice?
The practice location on file with NPPES is in Walnut Creek, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Alison Knight Pharmacist · Walnut Creek, CA NPI 1750591673 Linda Kan Huey Pharmacist · Walnut Creek, CA NPI 1396185294 Kenneth Yeung Pharmacist · Walnut Creek, CA NPI 1457883118 Kenny Zhang Pharmacist · Walnut Creek, CA NPI 1336671098 Gary Deguire Pharmacist · Walnut Creek, CA NPI 1316479074 Lihua Li Pharmacist · Walnut Creek, CA NPI 1770015166 Wai Kuan Chan Pharmacist · Walnut Creek, CA NPI 1467984815 Katie Nguyen Pharmacist · Walnut Creek, CA NPI 1275066151
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-30.