NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Riley Wallerstein

Behavior Technician in San Diego, CA · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1366838054

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Riley Wallerstein
Sex Male
Practice address 501 W Broadway Ste 800, San Diego, CA, 92101
Phone (877) 418-2978
Fax (866) 500-2186
Enumeration date Apr 9, 2015
Last updated in NPPES Mar 27, 2023

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Secondary
171M00000X Case Manager/Care Coordinator Other Service Providers Secondary
106S00000X Behavior Technician Behavioral Health & Social Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Riley Wallerstein?
The National Provider Identifier (NPI) for Riley Wallerstein is 1366838054, a Type 1 (individual) record in the CMS NPPES registry.
Where does Riley Wallerstein practice?
The practice location on file with NPPES is in San Diego, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-27.