ATI PHYSICAL THERAPY
Medicare Clinicians for NPI 1487954921
Physical Therapist in Oak Lawn, IL
Clinicians Billing Medicare Through This Organization CMS
Clinicians who reassign their Medicare billing to this organization, per CMS enrollment records.
Ati Physical Therapy in Oak Lawn, IL bills Medicare for 501 clinicians across 2 Medicare specialties. The largest specialties are Physical Therapist in Private Practice with 455 and Occupational Therapist in Private Practice with 46. Of these, 4 practice at this address and 93 within 10 miles. Search by name or filter by specialty; each name links to that clinician's NPI profile.
This page lists the 250 clinicians practicing nearest to this organization's location. All 501 are counted in the totals above.
Physical Therapist in Private Practice (217 of 455)
Occupational Therapist in Private Practice (33 of 46)
About this data
Medicare reassignment. A clinician who works for a hospital, clinic or medical group usually signs a Medicare reassignment (form CMS-855R). It lets the organization bill Medicare for the clinician's services and receive the payment. This page lists the clinicians whose reassignment to Ati Physical Therapy appears in the CMS Revalidation Reassignment List.
Who is included. Clinicians who bill Medicare under their own NPI through this organization. A clinician can reassign to more than one organization, so the same name may also appear under other groups.
Nearest 250. The totals and specialty counts cover all 501 clinicians. The list shows the 250 whose practice address is closest to this NPI's location, so each Ati Physical Therapy location shows its own nearest clinicians.
Addresses and phone numbers come from each clinician's own NPPES record, so they may point to another office or to the clinician's own practice.
Source: CMS Revalidation Reassignment List, October 2026 release; addresses, phone numbers and Medicare status from NPPES and PECOS. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
