Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ruth Marquez, O.D.
Optometrist in Oxnard, CA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1417113184
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Registry record
Entity type Individual (Type 1)
Name Dr. Ruth Marquez
Credential O.D.
Sex Female
Practice address 2401 N Rose Ave, Oxnard, CA, 93036
Phone (805) 981-4963
Fax (805) 983-8509
Enumeration date Aug 1, 2008
Last updated in NPPES Nov 8, 2018
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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
How do I verify Ruth Marquez's NPI record?
Cross-check NPI 1417113184 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1417113184 active?
Yes, as of the latest NPPES snapshot, NPI 1417113184 is active (record last updated 2018-11-08).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-08.