Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nylvia Martinez
Physician Assistant in Tustin, CA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1376134155
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Registry record
Entity type Individual (Type 1)
Name Nylvia Martinez
Sex Female
Practice address 661 W 1st St Ste G, Tustin, CA, 92780
Phone (714) 665-9890
Fax (714) 665-9891
Enumeration date Feb 3, 2021
Last updated in NPPES Aug 11, 2026
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 59317 (CA) 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.
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 Nylvia Martinez?
Nylvia Martinez is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-11.