Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Siani Williams, LBS
Behavior Analyst in Elkins Park, PA · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558246884
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Siani Williams
Credential LBS
Sex Female
Practice address 8080 Old York Rd Ste 221, Elkins Park, PA, 19027
Phone (866) 600-7598
Enumeration date Aug 6, 2025
Last updated in NPPES Apr 19, 2026
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License BH006841 (PA) 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
What specialty is Siani Williams?
Siani 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.
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
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-19.