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Robert Contreras

Research Study Specialist in Los Angeles, CA · enumerated 2013.

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

National Provider Identifier

1841620333

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Registry record

Entity type Individual (Type 1)
Name Robert Contreras
Sex Male
Practice address 5326 E Beverly Blvd, Los Angeles, CA, 90022
Phone (323) 727-7896
Fax (323) 727-0284
Enumeration date Nov 19, 2013
Last updated in NPPES Feb 14, 2023

Taxonomy & licenses

1744R1102X Research Study Specialist Other Service Providers 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.

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Frequently asked questions

Where does Robert Contreras practice?
The practice location on file with NPPES is in Los Angeles, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Robert Contreras?
The National Provider Identifier (NPI) for Robert Contreras is 1841620333, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-14.