By Your Side, LLC
About this NPIWhat this record shows.
NPI 1922233923 is registered to By Your Side, LLC, a healthcare organisation classified as "Behavior Analyst" and located at 8201 Cass Ave in Darien, Illinois. The organisation's authorised official is Matthew Sullivan. The organisation has been enumerated in the NPI registry since 2009.
Your brand here.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans By Your Side, LLC accepts. To confirm in-network status with your specific health plan, contact By Your Side, LLC directly at (630) 590-5571.
Frequently asked
Yes. NPI 1922233923 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Behavior Analyst is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (630) 590-5571.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. By Your Side, LLC is a Type-2 organisational NPI.