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DR. ARON JANSSEN M.D.
NPI 1952505638
Psychiatry & Neurology - Child & Adolescent Psychiatry in Chicago, IL

Active since June 14, 2007PECOS Enrolled
225 E CHICAGO AVE, CHICAGO, IL 60611(312) 227-3413 Get Directions Write a Review

NPPES record last updated: March 5, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Aron Janssen M.d. NPPES

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

DR. ARON JANSSEN M.D. (NPI 1952505638) is an individual child & adolescent psychiatry provider in Chicago, Illinois, licensed in New York (247851) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS and maintains a secondary practice location in New York.

NPPES Registry Identity

NPI1952505638
Entity TypeIndividualMale
Primary Taxonomy2084P0804X
Provider Legal NameDR. ARON JANSSENCredential: M.D.
Location Address225 E CHICAGO AVEChicago, IL 60611-2991
Mailing Address577 1st AveNew York, NY 10016-6404 · (212) 263-4344 · Fax (212) 263-0990
Phone(312) 227-3413
Sole ProprietorNo
Enumeration DateJune 14, 2007
Last NPPES UpdateMarch 5, 2019
✔ NPI 1952505638 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in NY · 247851
Definition
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License 247851 (NY)
225 E CHICAGO AVE, Chicago, IL 60611
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Secondary Practice Location 1

Location 1577 1st AveNew York, NY 10016-6404 · Phone (212) 263-4344 · Fax (212) 263-0990

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Aron Janssen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Aron Janssen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lurie Children's Medical Group Inc
Same address
Pediatrics
225 E CHICAGO AVE
Chicago, IL 60611
  • Reassigned Medicare billing, Illinois enrollment
  • 826 clinicians in this Medicare group
NPI 1518064716 (312) 227-6412

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BESSEY ELIZABETH JOSE GEEVARGHESE DO
Pediatrics
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (630) 933-6631
CHRISTINA SOOJIN KIM M.D.
Pediatrics
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (443) 928-7458
JESSICA LAUREN OFFENBACH APN
Nurse Practitioner (Pediatrics)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
MS. JENNY KO LEE APN
Nurse Practitioner (Neonatal)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (847) 962-6268
ERIN COHEN MD
Pediatrics (Hospice and Palliative Medicine)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
DR. JOSEPH HART COLLINS MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-3550
ALEXIS LYN HARMON
Student in an Organized Health Care Education/Training Program
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
SHANNON JULIA CONWAY MD
Student in an Organized Health Care Education/Training Program
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000

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 Aron Janssen's NPI number?

The NPI number for Aron Janssen is 1952505638. It was assigned to this individual provider in the NPPES registry on June 14, 2007.

Where is Aron Janssen located?

Aron Janssen practices at 225 E Chicago Ave, Chicago, IL 60611. The listed phone number is (312) 227-3413.

What is Aron Janssen's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is Aron Janssen enrolled in Medicare?

Yes. Aron Janssen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Aron Janssen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aron Janssen reassigns Medicare benefits to Lurie Children's Medical Group Inc (Chicago, IL). The 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 Aron Janssen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Aron Janssen was last updated on March 5, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.