Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alyssa Guihama, BSN RN
Registered Nurse in El Cajon, CA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598574071
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Registry record
Entity type Individual (Type 1)
Name Alyssa Guihama
Credential BSN RN
Sex Female
Practice address 1664 Broadway, El Cajon, CA, 92021
Phone (619) 579-8685
Enumeration date Dec 30, 2024
Last updated in NPPES Jan 3, 2025
Taxonomy & licenses
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 Alyssa Guihama?
Alyssa Guihama is registered in NPPES with the primary taxonomy of Registered Nurse. 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 2025-01-03.