Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Rosa Guerreiro
Optometrist in Alexandria, VA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1104859503
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Registry record
Entity type Individual (Type 1)
Name Dr. Rosa Guerreiro
Sex Female
Practice address 4555 Duke St, Alexandria, VA, 22304
Phone (703) 370-7111
Fax (703) 370-4501
Enumeration date Jul 9, 2006
Last updated in NPPES Jan 23, 2018
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 009237101 | Medicaid | VA | - |
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 Rosa Guerreiro?
Rosa Guerreiro is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Seema Mohanan Optometrist · Alexandria, VA NPI 1124129705 Alexandria Optometry, Pllc Optometrist · Alexandria, VA NPI 1376608380 Ahmad Zahir Corneal and Contact Management Optometrist · Alexandria, VA NPI 1912434176 Edward Papie Optometrist · Alexandria, VA NPI 1639868706 Myeyedr Optometry of Virginia, Pllc Optometrist · Alexandria, VA NPI 1851288666
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-23.