Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sultan S Hasapis, PSYD
Psychologist in Glen Ellyn, IL · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639510555
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Registry record
Entity type Individual (Type 1)
Name Sultan S Hasapis
Credential PSYD
Sex Female
Practice address 800 Roosevelt Road, Building B, Suite 419a, Glen Ellyn, IL, 60137
Phone (630) 908-0098
Enumeration date Jul 8, 2013
Last updated in NPPES Jan 22, 2024
Taxonomy & licenses
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD credential
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
Where does Sultan Hasapis practice?
The practice location on file with NPPES is in Glen Ellyn, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sultan Hasapis?
The National Provider Identifier (NPI) for Sultan Hasapis is 1639510555, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-22.