Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Maritza I Diaz, DMD
Dentist in Manassas Park, VA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1861591968
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Registry record
Entity type Individual (Type 1)
Name Dr. Maritza I Diaz
Credential DMD
Sex Female
Practice address 9110 Railroad Dr Ste 201, Manassas Park, VA, 20111
Phone (703) 365-0230
Enumeration date Sep 22, 2006
Last updated in NPPES Jun 15, 2021
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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
What specialty is Maritza Diaz?
Maritza Diaz 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.
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.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-15.