Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ashley Williams, BCBA
Behavior Analyst in San Diego, CA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902348881
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ashley Williams
Credential BCBA
Sex Female
Practice address 8885 Rio San Diego Dr Ste 340, San Diego, CA, 92108
Phone (619) 795-9925
Enumeration date Nov 9, 2016
Last updated in NPPES Feb 25, 2020
Taxonomy & licenses
222Q00000X Developmental Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-19-37365 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 Ashley Williams?
Ashley Williams is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Diana Younes Behavior Technician · San Diego, CA NPI 1518495837 Ellene Franche Behavior Analyst · San Diego, CA NPI 1821501453 Quynh Tien Phan Behavior Analyst · San Diego, CA NPI 1134615867 Eduardo Castelo Behavior Technician · San Diego, CA NPI 1528538436 Christopher Riordan Behavior Technician · San Diego, CA NPI 1053881961 Erin Smith Behavior Technician · San Diego, CA NPI 1649743469 Ahmed Fabre Behavior Technician · San Diego, CA NPI 1619440427 Analaura Hernandez Behavior Technician · San Diego, CA NPI 1679046494
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-25.