WILLIAM GUZNER
NPI 1770448433
Behavior Technician in Torrance, CA
About William Guzner NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM GUZNER (NPI 1770448433) is an individual behavior technician in Torrance, California and active in the NPI registry since December 2025.
NPPES Registry Identity
Specialties & Licenses
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Guzner's NPI number?
The NPI number for William Guzner is 1770448433. It was assigned to this individual provider in the NPPES registry on December 16, 2025.
Where is William Guzner located?
William Guzner practices at 23740 Hawthorne Blvd Ste 104, Torrance, CA 90505. The listed phone number is (855) 223-7123.
What is William Guzner's specialty?
The primary specialty registered for this NPI is Behavior Technician with taxonomy code 106S00000X.
When was this NPI record last updated?
The NPPES record for William Guzner was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.