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ALLY MENTAL HEALTH, PLLC
NPI 1407617889
Psychologist - Clinical in Glen Ellyn, IL

Active since January 22, 2024
800 ROOSEVELT ROAD, BUILDING B, SUITE 419A, GLEN ELLYN, IL 60137(630) 908-0098 Get Directions Write a Review

NPPES record last updated: April 2, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ally Mental Health, Pllc NPPES

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

ALLY MENTAL HEALTH, PLLC (NPI 1407617889) is a healthcare organization registered as a clinical in Glen Ellyn, Illinois and active in the NPI registry since January 2024. The organization lists Sultan Seda Hasapis, Psychologist/owner, as its authorized official.

NPPES Registry Identity

NPI1407617889
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameALLY MENTAL HEALTH, PLLC
Location Address800 ROOSEVELT ROAD, BUILDING B, SUITE 419AGlen Ellyn, IL 60137
Mailing Address800 Roosevelt Road, Building B, Suite 419aGlen Ellyn, IL 60137 · (630) 908-0098
Phone(630) 908-0098
Organization SubpartNo
Authorized OfficialSultan Seda HasapisPsychologist/owner · (630) 908-0098
Enumeration DateJanuary 22, 2024
Last NPPES UpdateApril 2, 2024
NPPES CertifiedApril 2, 2024
✔ NPI 1407617889 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
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.
800 ROOSEVELT ROAD, Glen Ellyn, IL 60137
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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)

Ally Mental Health, Pllc 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 Ally Mental Health, PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Sultan Hasapis, PSYD
Clinical Psychologist
NPI 1639510555
800 ROOSEVELT ROAD BUILDING B, SUITE 419A
Glen Ellyn, IL 60137
(630) 908-0098
✔ 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 Ally Mental Health, PLLC's NPI number?

The NPI number for Ally Mental Health, PLLC is 1407617889. It was assigned to this organization in the NPPES registry on January 22, 2024.

Where is Ally Mental Health, PLLC located?

Ally Mental Health, PLLC is located at 800 Roosevelt Road Building B, Suite 419A, Glen Ellyn, IL 60137. The listed phone number is (630) 908-0098.

What is Ally Mental Health, PLLC's specialty?

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

Is Ally Mental Health, PLLC enrolled in Medicare?

Yes. Ally Mental Health, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ally Mental Health, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Ally Mental Health, PLLC. 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 Ally Mental Health, PLLC was last updated on April 2, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.