DEIDRE ALEXANDER PSYD SC
NPI 1528325438
Psychologist - Clinical in Oak Brook, IL

Q: What is Deidre Alexander Psyd Sc's NPI number?

The NPI number for Deidre Alexander Psyd Sc is 1528325438. It was assigned to this organization in the NPPES registry on April 16, 2012.

Q: What is Deidre Alexander Psyd Sc's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Active since April 16, 2012

1000 JORIE BLVD STE 119, OAK BROOK, IL 60523(630) 309-2989(630) 790-3804 Get Directions Write a Review

NPPES record last updated: September 27, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Deidre Alexander Psyd Sc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DEIDRE ALEXANDER PSYD SC (NPI 1528325438) is a healthcare organization registered as a clinical in Oak Brook, Illinois and active in the NPI registry since April 2012. The organization lists Dc Mcauliffe, Assistant, as its authorized official.

NPPES Registry Identity

NPI1528325438

Entity TypeOrganization

Primary Taxonomy103TC0700X

Legal Business NameDEIDRE ALEXANDER PSYD SC

Location Address1000 JORIE BLVD STE 119Oak Brook, IL 60523-4463

Mailing Address1000 Jorie Blvd Ste 119Oak Brook, IL 60523-4463 · (630) 309-2989 · Fax (630) 790-3804

Phone(630) 309-2989

Fax(630) 790-3804

Organization SubpartYes

Authorized OfficialDc McauliffeAssistant · (708) 712-6183

Enumeration DateApril 16, 2012

Last NPPES UpdateSeptember 27, 2018

✔ NPI 1528325438 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in IL · 017.008341

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

1000 JORIE BLVD STE 119, Oak Brook, IL 60523

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Deidre Alexander Psyd Sc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Deidre Alexander Psyd Sc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Deidre Alexander, PSYD

Clinical Psychologist

NPI 1851405807

1000 JORIE BLVD STE 119
Oak Brook, IL 60523

(630) 309-2989

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Deidre Alexander Psyd Sc's NPI number?

The NPI number for Deidre Alexander Psyd Sc is 1528325438. It was assigned to this organization in the NPPES registry on April 16, 2012.

Where is Deidre Alexander Psyd Sc located?

Deidre Alexander Psyd Sc is located at 1000 Jorie Blvd Ste 119, Oak Brook, IL 60523. The listed phone number is (630) 309-2989.

What is Deidre Alexander Psyd Sc's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Deidre Alexander Psyd Sc enrolled in Medicare?

Yes. Deidre Alexander Psyd Sc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Deidre Alexander Psyd Sc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Deidre Alexander Psyd Sc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Deidre Alexander Psyd Sc was last updated on September 27, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.