ATI PHYSICAL THERAPY
NPI 1700109055
Durable Medical Equipment & Medical Supplies in Chicago, IL

Active since March 01, 2010
9645 S WESTERN AVE, CHICAGO, IL 60643(773) 239-2734 Get Directions Write a Review

NPPES record last updated: April 30, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 30, 2024, Dec 9, 2019 (2 updates tracked since 2019).

About Ati Physical Therapy NPPES

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

ATI PHYSICAL THERAPY (NPI 1700109055) is a healthcare organization registered as a durable medical equipment & medical supplies in Chicago, Illinois and active in the NPI registry since March 2010. The organization lists Wade A Meyer, Vp Chief Compliance Officer, as its authorized official.

NPPES Registry Identity

NPI1700109055
Entity TypeOrganization
Primary Taxonomy332B00000X
Legal Business NameATHLETIC AND THERAPEUTIC INSTITUTE OF NAPERVILLE, LLC
Location Address9645 S WESTERN AVEChicago, IL 60643-1722
Mailing Address790 Remington BlvdBolingbrook, IL 60440-4909 · (630) 296-2223
Organization SubpartNo
Authorized OfficialWade A MeyerVp Chief Compliance Officer · (630) 296-2222
Enumeration DateMarch 1, 2010
Last NPPES UpdateApril 30, 20242 updates tracked since enumeration
NPPES CertifiedApril 30, 2024
✔ NPI 1700109055 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDurable Medical Equipment & Medical SuppliesSuppliers
Taxonomy Code332B00000X
Definition
A supplier of medical equipment such as respirators, wheelchairs, home dialysis systems, or monitoring systems, that are prescribed by a physician for a patient's use in the home and that are usable for an extended period of time.
Also ListedOccupational Therapist · HandTaxonomy 225XH1200X
9645 S WESTERN AVE, Chicago, IL 60643

Other Names 1

Doing Business AsAti Physical Therapy

Other Identifiers 1

Other6446220001IL · Nsc Dme

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ati Physical Therapy is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date 2

Next revalidation due by December 31, 2026

This provider holds 2 Medicare enrollments with upcoming revalidation dates. Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateIllinoisEnrollment IDO20110516000816DME · Independently-Practicing Physical TherapistDue dateDecember 31, 2026
StateIllinoisEnrollment IDO20040903000494Non-DME Part B · Physical/Occupational Therapy Group in Private PracticeDue dateMarch 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

501

Medicare enrollment records show 501 clinicians reassign Medicare billing to Ati Physical Therapy, which bills Medicare for the services they deliver. Of these, 17 practice at this address and 83 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 2

Physical Therapist in Private Practice455
Occupational Therapist in Private Practice46

Nearest to this location (20)

See all 501
Physical Therapist in Private Practice
NPI 1164258091
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Occupational Therapist in Private Practice
NPI 1700381944
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Physical Therapist in Private Practice
NPI 1598095564
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Occupational Therapist in Private Practice
NPI 1710836556
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Occupational Therapist in Private Practice
NPI 1376355776
9645 S WESTERN AVE
Chicago, IL 60643
(773) 302-1940
✔ Accepts MedicareSame address
Physical Therapist in Private Practice
NPI 1154858421
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Physical Therapist in Private Practice
NPI 1801329727
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Physical Therapist in Private Practice
NPI 1922722156
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Occupational Therapist in Private Practice
NPI 1508096041
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Occupational Therapist in Private Practice
NPI 1790796985
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Physical Therapist in Private Practice
NPI 1669921797
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-9645
✔ Accepts MedicareSame address
Physical Therapist in Private Practice
NPI 1861942351
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Physical Therapist in Private Practice
NPI 1215764139
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Occupational Therapist in Private Practice
NPI 1386907640
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Occupational Therapist in Private Practice
NPI 1235241506
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Physical Therapist in Private Practice
NPI 1912509977
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Physical Therapist in Private Practice
NPI 1164779609
9645 S WESTERN AVE
Chicago, IL 60643
(773) 239-2734
✔ Accepts MedicareSame address
Physical Therapist in Private Practice
NPI 1518450709
10801 S WESTERN AVE
Chicago, IL 60643
(773) 596-3700
✔ Accepts Medicare1.4 mi
Physical Therapist in Private Practice
NPI 1528614583
4061 W 95TH ST
Oak Lawn, IL 60453
(847) 841-2811
✔ Accepts Medicare2.2 mi
Physical Therapist in Private Practice
NPI 1548246580
4220 W 95TH ST STE 100
Oak Lawn, IL 60453
(708) 226-4431
✔ Accepts Medicare2.4 mi
See all 501 clinicians

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 Athletic And Therapeutic Institute Of Naperville, LLC's NPI number?

The NPI number for Athletic And Therapeutic Institute Of Naperville, LLC is 1700109055. It was assigned to this organization in the NPPES registry on March 1, 2010. The provider is doing business as Ati Physical Therapy.

Where is Athletic And Therapeutic Institute Of Naperville, LLC located?

Athletic And Therapeutic Institute Of Naperville, LLC is located at 9645 S Western Ave, Chicago, IL 60643. The listed phone number is (773) 239-2734.

What is Athletic And Therapeutic Institute Of Naperville, LLC's specialty?

The primary specialty registered for this NPI is Durable Medical Equipment & Medical Supplies with taxonomy code 332B00000X.

Is Athletic And Therapeutic Institute Of Naperville, LLC enrolled in Medicare?

Yes. Athletic And Therapeutic Institute Of Naperville, LLC is registered in the Medicare PECOS enrollment system.

When is Athletic And Therapeutic Institute Of Naperville, LLC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), Athletic And Therapeutic Institute Of Naperville, LLC holds 2 Medicare enrollments with upcoming revalidation dates. The next is due by December 31, 2026 (DME, Illinois, Independently-Practicing Physical Therapist). Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Athletic And Therapeutic Institute Of Naperville, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 501 clinicians in 2 Medicare specialties reassign their Medicare billing to Athletic And Therapeutic Institute Of Naperville, LLC. 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. The largest specialties are Physical Therapist in Private Practice (455) and Occupational Therapist in Private Practice (46). Of these, 17 practice at this address and 83 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Athletic And Therapeutic Institute Of Naperville, LLC was last updated on April 30, 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.