Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Alejandro R Marquez, D.D.S.
Dentist in Stockton, CA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1205081551
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Registry record
Entity type Individual (Type 1)
Name Dr. Alejandro R Marquez
Credential D.D.S.
Sex Male
Practice address 1523 E March Ln, Stockton, CA, 95210
Phone (209) 952-9000
Enumeration date Nov 27, 2008
Last updated in NPPES Aug 30, 2016
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS credential
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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Alejandro Marquez?
Alejandro Marquez is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-30.