Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Diana Graciela Alonzo
Social Worker in Arcadia, CA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1063133965
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Registry record
Entity type Individual (Type 1)
Name Diana Graciela Alonzo
Sex Female
Practice address 330 E Live Oak Ave, Arcadia, CA, 91006
Phone (626) 254-1469
Enumeration date Sep 8, 2022
Last updated in NPPES Oct 8, 2024
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
104100000X Social Worker Behavioral Health & Social Service Providers · License ACSW125409 (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 Diana Alonzo?
Diana Alonzo is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Los Angeles County Department of Mental Health Mental Health Clinic/Center (Including Community Mental Health Center) · Arcadia, CA NPI 1578595674 Fatima Agregado Clinical Social Worker · Arcadia, CA NPI 1083700892 Yuk Mei Lam Clinical Social Worker · Arcadia, CA NPI 1609957828 Kalene Gilbert Clinical Social Worker · Arcadia, CA NPI 1255413753 Mirtala Parada Ward Clinical Social Worker · Arcadia, CA NPI 1578646790 Makan Emadi Clinical Social Worker · Arcadia, CA NPI 1396828455 Gerald O'Day Clinical Psychologist · Arcadia, CA NPI 1487737235 Julie Wu Hsieh Psychiatry Physician · Arcadia, CA NPI 1457434300
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-08.