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About this NPIWhat this record shows.
NPI 1659890531 is registered to Guillermo Marquez, a healthcare organisation classified as "Dentist" and located at Calle 2da #72, Plaza Cesar in Los Algodones, BAJA CALIFORNIA. The organisation's authorised official is Guillermo Marquez. The organisation has been enumerated in the NPI registry since 2017.
Provider type
Organisation (Type 2)
Status
Active
Enumerated
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The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Guillermo Marquez accepts. To confirm in-network status with your specific health plan, contact Guillermo Marquez directly at (658) 517-7437.
Frequently asked
Yes. NPI 1659890531 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Dentist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (658) 517-7437.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Guillermo Marquez is a Type-2 organisational NPI.
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