Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gerardo Contreras, PHARMACY TECH
Pharmacy Technician in Fontana, CA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1437804523
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Registry record
Entity type Individual (Type 1)
Name Gerardo Contreras
Credential PHARMACY TECH
Sex Male
Practice address 9940 Sierra Ave, Fontana, CA, 92335
Phone (909) 822-8122
Fax (909) 822-5855
Enumeration date Feb 16, 2022
Last updated in NPPES Feb 16, 2022
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
Is NPI 1437804523 active?
Yes, as of the latest NPPES snapshot, NPI 1437804523 is active (record last updated 2022-02-16).
How do I verify Gerardo Contreras's NPI record?
Cross-check NPI 1437804523 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
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-16.