NPPES file of Aug 9, 2026

Aron Janssen, M.D.

Child & Adolescent Psychiatry Physician · Chicago, IL

Aron Janssen, M.D. is a child & adolescent psychiatry physician with a practice address in Chicago, Illinois, and NPI 1952505638, issued on Jun 14, 2007. Check the license on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1952505638
Name
Aron Janssen
Credential
M.D.
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
247851 NY
Self-reported in NPPES; status is on the state search
Practice location
225 E Chicago Ave, Chicago, IL 60611
Phone
(312) 227-3413
Enumerated
Jun 14, 2007
Record last updated
Mar 5, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest child & adolescent psychiatry physician records → All 267 in Illinois → Look up another NPI →

Also registered at 225 E Chicago Ave

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

  1. Jasmene Abernathy, MDStudent in an Organized Health Care Education/Training Program1881454957
  2. Tamkeen Abreu, PHARMD, BCPSPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1366888653
  3. Matthew Abts, MDPediatric Pulmonology Physician1588989750
  4. Samuel AccordinoStudent in an Organized Health Care Education/Training Program1194525204
  5. Carly Adajian, DDSDentist1184373029
  6. Julie Adams, RDRegistered Dietitian1417569153

Verify Aron Janssen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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
Open the Illinois license search

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Aron Janssen among 267 child & adolescent psychiatry physician records in Illinois

Aron Janssen, M.D. is one of 267 child & adolescent psychiatry physician records with a practice address in Illinois. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 35% of them.

  • NPI issued2007 · 35% of these records are older, 49% newer
  • In a Medicare fileNo · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · 36% of these records are
  • Record last updated2019 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in Illinois

There are 267 child & adolescent psychiatry physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 267 in Illinois → Every provider in Chicago → Child & Adolescent Psychiatry Physician nationwide →

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Thomas Cummins, M.D.Chicago, IL 606111124198239
  2. Mina Dulcan, M.D.Chicago, IL 606111891865515
  3. Caitlin Engelhard, M.D., PH.D.Chicago, IL 606111700156627
  4. Jeanne Greenblatt, MDChicago, IL 606111235250499
  5. Michael Hoffman, M.D.Chicago, IL 606111750404174
  6. Poonam Jha, M.D.Chicago, IL 606111750451472
  7. Regina Lopez, M.D.Chicago, IL 606111720288095
  8. Adele Martel, M.D.Chicago, IL 606111083638191

Common questions

What is Aron Janssen, M.D.'s NPI number?

Aron Janssen, M.D.'s National Provider Identifier (NPI) is 1952505638, issued on Jun 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Aron Janssen, M.D. located?

The NPPES record lists a practice address at 225 E Chicago Ave, Chicago, IL, 60611. Phone: (312) 227-3413. Providers update this record themselves, so call before visiting.

How can I verify Aron Janssen, M.D.'s license?

Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.