Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Zhicheng Guan
Registered Nurse in Ontario, CA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1588244669
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Registry record
Entity type Individual (Type 1)
Name Zhicheng Guan
Sex Male
Practice address 1050 N Mountain Ave, Ontario, CA, 91762
Phone (909) 986-1509
Enumeration date Apr 12, 2021
Last updated in NPPES Apr 12, 2021
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
Where does Zhicheng Guan practice?
The practice location on file with NPPES is in Ontario, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Zhicheng Guan?
The National Provider Identifier (NPI) for Zhicheng Guan is 1588244669, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-12.