NPPES file of Aug 9, 2026

Caroline K. Dillon

Physician Assistant · Chicago, IL

Caroline K. Dillon is a physician assistant with a practice address in Chicago, Illinois, and NPI 1659163145, issued on May 20, 2025. Check the license (Illinois 1219802, 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
1659163145
Name
Caroline K. Dillon
Primary taxonomy
Physician Assistant 363A00000X
License number
1219802 IL
Self-reported in NPPES; status is on the state search
Practice location
4211 N Cicero Ave, Chicago, IL 60641
Phone
(773) 794-1000
Enumerated
May 20, 2025
Record last updated
May 20, 2025
Medicare enrollment
Enrolled (PECOS I20250821004031); 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 physician assistant records → All 4,926 in Illinois → Look up another NPI →

Also registered at 4211 N Cicero Ave

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

  1. Gerard Alleje, LPTPhysical Therapist1801055777
  2. Sarah Andrich, FNPFamily Nurse Practitioner1003533977
  3. Diana Barros, CSASurgical Physician Assistant1720225469
  4. Susan Doddridge, FNP-BCFamily Nurse Practitioner1154039709
  5. Jack Enter, PA-CPhysician Assistant1366444184
  6. Joel Feder, D.P.M.Podiatrist1952394405

Verify Caroline K. Dillon 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 1219802    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. Physicians Immediate Care North Chicago LLCChicago, IL

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

Caroline K. Dillon among 4,926 physician assistant records in Illinois

Caroline K. Dillon is one of 4,926 physician assistant records with a practice address in Illinois. 82% 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 90% of them.

  • NPI issued2025 · 90% of these records are older, 3% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2023 · median 2019 among the 3,407 with a school on file
  • Record last updated2025 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,445 physician assistant records list a practice address in Chicago

They are 1,445 of the 63,379 NPPES records with a practice address in Chicago, and 4,926 physician assistant records in Illinois.

All 4,926 in Illinois → Every provider in Chicago → Physician Assistant nationwide →

The 8 physician assistant records with the nearest ZIP codes

  1. Luis Cruz, PAChicago, IL 606411477324754
  2. Jack Enter, PA-CChicago, IL 606411366444184
  3. Emma Frankel, PA-CChicago, IL 606411023171873
  4. Kendra Manning, PACChicago, IL 606411770910184
  5. Noemi Villanueva, PAChicago, IL 606411649789967
  6. Craig WardChicago, IL 606411669095378
  7. Jessica Ackerman, PA-CChicago, IL 606421518383322
  8. Divya Asher, PA-CChicago, IL 606421568803625

Common questions

What is Caroline K. Dillon's NPI number?

Caroline K. Dillon's National Provider Identifier (NPI) is 1659163145, issued on May 20, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Caroline K. Dillon located?

The NPPES record lists a practice address at 4211 N Cicero Ave, Chicago, IL, 60641. Phone: (773) 794-1000. Providers update this record themselves, so call before visiting.

How can I verify Caroline K. Dillon's license?

NPPES lists Illinois license number 1219802, 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.