Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Araceli Maria Castillo, LISW
Social Worker in Los Alamos, NM · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1023224268
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Registry record
Entity type Individual (Type 1)
Name Araceli Maria Castillo
Credential LISW
Sex Female
Practice address 1505 15th St, Suite A, Los Alamos, NM, 87544
Phone (505) 662-3264
Fax (505) 662-9707
Enumeration date May 15, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License X-05777 (NM) 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
How do I verify Araceli Castillo's NPI record?
Cross-check NPI 1023224268 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1023224268 active?
Yes, as of the latest NPPES snapshot, NPI 1023224268 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Gretchen Selby Social Worker · Los Alamos, NM NPI 1457396137 Rick Church Mental Health Counselor · Los Alamos, NM NPI 1255376323 Laverne Rodriguez Clinical Social Worker · Los Alamos, NM NPI 1518027598 Steven Koch Professional Counselor · Los Alamos, NM NPI 1124319231 Amanda Storey Mental Health Counselor · Los Alamos, NM NPI 1821366725
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.