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Dr. Deidre Mcauliffe Alexander, PSYD

Clinical Psychologist in Oak Brook, IL · enumerated 2006 · practices at Deidre Alexander Psyd Sc.

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

National Provider Identifier

1851405807

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Registry record

Entity type Individual (Type 1)
Name Dr. Deidre Mcauliffe Alexander
Credential PSYD
Sex Female
Practice address 1000 Jorie Blvd Ste 119, Oak Brook, IL, 60523
Phone (630) 309-2989
Fax (630) 790-3804
Enumeration date Aug 18, 2006
Last updated in NPPES Oct 3, 2018

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 180000867 (IL) Secondary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 071.008341 (IL) Primary
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.

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Frequently asked questions

Where does Deidre Alexander practice?
The practice location on file with NPPES is in Oak Brook, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Deidre Alexander?
The National Provider Identifier (NPI) for Deidre Alexander is 1851405807, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-03.