Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Eileen Sobczak-Hayden
Pharmacist in Elmhurst, IL · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851692438
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Registry record
Entity type Individual (Type 1)
Name Eileen Sobczak-Hayden
Sex Female
Practice address 215 South Route 83, Elmhurst, IL, 60126
Phone (630) 834-4280
Enumeration date Nov 12, 2010
Last updated in NPPES Nov 12, 2010
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 Eileen Sobczak-Hayden?
The National Provider Identifier (NPI) for Eileen Sobczak-Hayden is 1851692438, a Type 1 (individual) record in the CMS NPPES registry.
Where does Eileen Sobczak-Hayden practice?
The practice location on file with NPPES is in Elmhurst, 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 2010-11-12.