LEAH MAE DILLON
NPI 1710836556
Occupational Therapist in Chicago, IL

Active since January 26, 2026Accepts Medicare Assignment
9645 S WESTERN AVE, CHICAGO, IL 60643(773) 239-2734 Get Directions Write a Review

NPPES record last updated: January 26, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Leah Mae Dillon NPPES

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

LEAH MAE DILLON (NPI 1710836556) is an individual occupational therapist in Chicago, Illinois, licensed in Illinois (056.016918) and active in the NPI registry since January 2026. She is a graduate of Other (2025).

NPPES Registry Identity

NPI1710836556
Entity TypeIndividualFemale
Primary Taxonomy225X00000X
Provider Legal NameLEAH MAE DILLON
Location Address9645 S WESTERN AVEChicago, IL 60643-1722
Mailing Address9645 S Western AveChicago, IL 60643-1722 · (773) 239-2734
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJanuary 26, 2026
NPPES CertifiedJanuary 25, 2026
✔ NPI 1710836556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
License✔ Licensed in IL · 056.016918
Definition
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
9645 S WESTERN AVE, Chicago, IL 60643

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Leah Mae Dillon is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9638650864
PECOS Enrollment IDI20260225002466

Medicare Billing Reassignment

Medicare enrollment records show Leah Dillon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Physical Therapist
9645 S WESTERN AVE
Chicago, IL 60643
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Athletic And Therapeutic Institute Of Naperville, LLC
  • 501 clinicians in this Medicare group

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

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physical Therapist
9645 S WESTERN AVE
CHICAGO, IL 60643
Physical Therapist
9645 S WESTERN AVE
CHICAGO, IL 60643
Physical Therapist
9645 S WESTERN AVE
CHICAGO, IL 60643
Physical Therapist
9645 S WESTERN AVE
CHICAGO, IL 60643
Physical Therapist
9645 S WESTERN AVE
CHICAGO, IL 60643
Physical Therapist
9645 S WESTERN AVE
CHICAGO, IL 60643
Occupational Therapist
9645 S WESTERN AVE
CHICAGO, IL 60643
Physical Therapist
9645 S WESTERN AVE
CHICAGO, IL 60643

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 Leah Dillon's NPI number?

The NPI number for Leah Dillon is 1710836556. It was assigned to this individual provider in the NPPES registry on January 26, 2026.

Where is Leah Dillon located?

Leah Dillon practices at 9645 S Western Ave, Chicago, IL 60643. The listed phone number is (773) 239-2734.

What is Leah Dillon's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

Is Leah Dillon enrolled in Medicare?

Yes. Leah Dillon is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Leah Dillon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leah Dillon reassigns Medicare benefits to Athletic & Therapeutic Institute Of Naperville, LLC (Chicago, IL). The 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 Leah Dillon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Leah Dillon was last updated on January 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.