Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexandra Massey, PA-C
Physician Assistant in La Jolla, CA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013538776
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Registry record
Entity type Individual (Type 1)
Name Alexandra Massey
Credential PA-C
Sex Female
Practice address 9300 Campus Point Dr, La Jolla, CA, 92037
Phone (858) 657-7000
Enumeration date May 4, 2020
Last updated in NPPES May 18, 2026
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
What specialty is Alexandra Massey?
Alexandra Massey 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.
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
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-18.