Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Viwi Ann Singian Santos
Pharmacist in Los Angeles, CA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1861961120
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Registry record
Entity type Individual (Type 1)
Name Viwi Ann Singian Santos
Sex Female
Practice address 1505 N Edgemont St Fl 1, Los Angeles, CA, 90027
Phone (866) 352-8649
Enumeration date Nov 16, 2018
Last updated in NPPES Nov 16, 2018
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 is the NPI number for Viwi Ann Santos?
The National Provider Identifier (NPI) for Viwi Ann Santos is 1861961120, a Type 1 (individual) record in the CMS NPPES registry.
Where does Viwi Ann Santos practice?
The practice location on file with NPPES is in Los Angeles, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Monique Velazquez Social Worker · Los Angeles, CA NPI 1750835369 Debora Ribas-Santos Clinical Social Worker · Los Angeles, CA NPI 1508374331 Alejandra Gallardo Clinical Social Worker · Los Angeles, CA NPI 1811552664 Ericka Benegas Clinical Social Worker · Los Angeles, CA NPI 1386209120 Adrienne Thomas Clinical Social Worker · Los Angeles, CA NPI 1700400751 Susan Weiss Clinical Social Worker · Los Angeles, CA NPI 1952926222 Kathrine Hanley Clinical Social Worker · Los Angeles, CA NPI 1972187201
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-16.