NPPES file of Aug 9, 2026

Caitlin Duffner, DPT

Physical Therapist · Chicago, IL

Caitlin Duffner, DPT is a physical therapist with a practice address in Chicago, Illinois, and NPI 1588459465, issued on Apr 11, 2025. Check the license (Illinois 070026307, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588459465
Name
Caitlin Duffner
Credential
DPT
Primary taxonomy
Physical Therapist 225100000X
License number
070026307 IL
Self-reported in NPPES; status is on the state search
Practice location
5545 N Clark St, Chicago, IL 60640
Phone
(773) 989-9620
Enumerated
Apr 11, 2025
Record last updated
Apr 11, 2025
Medicare enrollment
Enrolled (PECOS I20250430002833); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest physical therapist records → All 12,045 in Illinois → Look up another NPI →

Also registered at 5545 N Clark St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alicia Austin, DPTPhysical Therapist1760772297
  2. Kathryn Boatwright, DPTPhysical Therapist1306449475
  3. Sean Hassett, DPTPhysical Therapist1245462613
  4. Stephen Hooley, DPTPhysical Therapist1558886564
  5. John Iannantuoni, DPTPhysical Therapist1356576094
  6. Amy Nelson, MPTPhysical Therapist1144361510

Verify Caitlin Duffner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 070026307    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Athletico LtdChicago, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Caitlin Duffner among 12,045 physical therapist records in Illinois

Caitlin Duffner, DPT is one of 12,045 physical therapist records with a practice address in Illinois. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 94% of them.

  • NPI issued2025 · 94% of these records are older, 2% newer
  • In a Medicare fileYes · 36% of these records are
  • In the CMS Doctors and Clinicians fileYes · 37% of these records are
  • Graduated2021 · median 2015 among the 4,392 with a school on file
  • Record last updated2025 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,639 physical therapist records list a practice address in Chicago

They are 2,639 of the 63,379 NPPES records with a practice address in Chicago, and 12,045 physical therapist records in Illinois.

All 12,045 in Illinois → Every provider in Chicago → Physical Therapist nationwide →

The 8 physical therapist records with the nearest ZIP codes

  1. Jill Bowman, PTChicago, IL 606401922148204
  2. Kristin Burda, PTChicago, IL 606401164463139
  3. Jill Domke, PTChicago, IL 606401013023241
  4. Stacey Knowles, M.S.P.T.Chicago, IL 606401437187069
  5. Monica Kunkler, PTChicago, IL 606401508914201
  6. Angela LarueChicago, IL 606401285720268
  7. Rika LinChicago, IL 606401154430338
  8. Sarah Macias, P.T.Chicago, IL 606401518073493

Common questions

What is Caitlin Duffner, DPT's NPI number?

Caitlin Duffner, DPT's National Provider Identifier (NPI) is 1588459465, issued on Apr 11, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Caitlin Duffner, DPT located?

The NPPES record lists a practice address at 5545 N Clark St, Chicago, IL, 60640. Phone: (773) 989-9620. Providers update this record themselves, so call before visiting.

How can I verify Caitlin Duffner, DPT's license?

NPPES lists Illinois license number 070026307, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.