Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sarah Diaz, M.S., BCBA
Behavior Analyst in Lombard, IL · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164950234
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Sarah Diaz
Credential M.S., BCBA
Sex Female
Practice address 44 W Lombard Ave, Lombard, IL, 60148
Phone (773) 354-1511
Enumeration date Jun 1, 2017
Last updated in NPPES May 23, 2024
Taxonomy & licenses
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 is the NPI number for Sarah Diaz?
The National Provider Identifier (NPI) for Sarah Diaz is 1164950234, a Type 1 (individual) record in the CMS NPPES registry.
Where does Sarah Diaz practice?
The practice location on file with NPPES is in Lombard, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-23.