Naperville · Licensed center

Dupage Montessori School

Medium center, licensed for 56 children.
Run by a nonprofit. A board oversees it, and there are no owners taking profit.
Shortlist has found no website for it yet.

What the state has found

The state cited rules at 14 of its 15 licensing inspections since April 2011.

Of the 859 Chicago-area centers with 10 or more licensing inspections, 78% had rules cited at some but not all of them, as this center did. 22% had rules cited at all of them.

Licensing inspections

Apr 17, 20261 citation

Personnel Records
89 Ill. Adm. Code 407.120(a)(2)

Feb 13, 2025No rules cited

Apr 17, 20245 citations

General Requirements for Personnel
89 Ill. Adm. Code 407.100(c)(5)
Physical Plant/Indoor Space
89 Ill. Adm. Code 407.370(e)(4)
Organization and Administration
89 Ill. Adm. Code 407.70(l)
General Requirements for Personnel
89 Ill. Adm. Code 407.100(c)(1)

1 more from this inspection

A citation the state’s report lists only by its code, FHSEC305.

Mar 16, 20232 citations

General Requirements for Personnel
89 Ill. Adm. Code 407.100(f)
General Requirements for Personnel
89 Ill. Adm. Code 407.100(c)(5)

Feb 28, 20222 citations

General Requirements for Personnel
89 Ill. Adm. Code 407.100(c)(1)
General Requirements for Personnel
89 Ill. Adm. Code 407.100(f)

Mar 2, 20202 citations

General Requirements for Personnel
89 Ill. Adm. Code 407.100(f)
A citation the state’s report lists only by its code, FHSEC305.

Mar 2, 20181 citation

General Requirements for Personnel
89 Ill. Adm. Code 407.100(f)

Mar 16, 20174 citations

General Requirements for Personnel
89 Ill. Adm. Code 407.100(f)
Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(4)
Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(5)
Special Requirements for Infants and Toddlers
89 Ill. Adm. Code 407.210(b)

Feb 26, 20163 citations

Personnel Records
89 Ill. Adm. Code 407.120(a)(4)
Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(4)
Equipment and Materials
89 Ill. Adm. Code 407.380(j)(6)

Feb 17, 20157 citations

General Requirements for Personnel
89 Ill. Adm. Code 407.100(c)(5)
Personnel Records
89 Ill. Adm. Code 407.120(a)(4)
Personnel Records
89 Ill. Adm. Code 407.120(c)
Enrollment and Discharge Procedures
89 Ill. Adm. Code 407.250(i)(4)

3 more from this inspection

Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(4)
Staffing Structure
89 Ill. Adm. Code 407.90(b)
Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(5)

Apr 25, 20147 citations

General Requirements for Personnel
89 Ill. Adm. Code 407.100(c)(5)
Personnel Records
89 Ill. Adm. Code 407.120(a)(3)
Substitutes
89 Ill. Adm. Code 407.170(b)
Personnel Records
89 Ill. Adm. Code 407.120(c)

3 more from this inspection

Qualifications for Child Care Director
89 Ill. Adm. Code 407.130(j)
Special Requirements for Infants and Toddlers
89 Ill. Adm. Code 407.210(b)
Enrollment and Discharge Procedures
89 Ill. Adm. Code 407.250(d)

Feb 22, 20132 citations

Physical Plant/Indoor Space
89 Ill. Adm. Code 407.370(e)(2)
Equipment and Materials
89 Ill. Adm. Code 407.380(b)

Jun 5, 201212 citations

Organization and Administration
89 Ill. Adm. Code 407.70(e)(3)
Background Checks for Personnel
89 Ill. Adm. Code 407.110
Organization and Administration
89 Ill. Adm. Code 407.70(e)(1)
Organization and Administration
89 Ill. Adm. Code 407.70(e)(2)

8 more from this inspection

Personnel Records
89 Ill. Adm. Code 407.120(a)(1)
Personnel Records
89 Ill. Adm. Code 407.120(a)(2)
Personnel Records
89 Ill. Adm. Code 407.120(a)(3)
Personnel Records
89 Ill. Adm. Code 407.120(a)(4)
Personnel Records
89 Ill. Adm. Code 407.120(a)(6)
Personnel Records
89 Ill. Adm. Code 407.120(c)
Qualifications for Early Childhood Teachers and School-age Workers
89 Ill. Adm. Code 407.140(h)
Guidance and Discipline
89 Ill. Adm. Code 407.270(a)

Apr 10, 201215 citations

Personnel Records
89 Ill. Adm. Code 407.120(a)(2)
Enrollment and Discharge Procedures
89 Ill. Adm. Code 407.250(d)
Enrollment and Discharge Procedures
89 Ill. Adm. Code 407.250(i)(4)
Daily Arrival and Departure of Children
89 Ill. Adm. Code 407.260(f)(1)

11 more from this inspection

Daily Arrival and Departure of Children
89 Ill. Adm. Code 407.260(f)(2)
Daily Arrival and Departure of Children
89 Ill. Adm. Code 407.260(f)(3)
Daily Arrival and Departure of Children
89 Ill. Adm. Code 407.260(f)(4)
Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(4)
Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(5)
Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(6)
Physical Plant/Indoor Space
89 Ill. Adm. Code 407.370(n)(2)
Outdoor Play Area
89 Ill. Adm. Code 407.390(i)
Diapering and Toileting Procedures
89 Ill. Adm. Code 407.340(a)(2)
Guidance and Discipline
89 Ill. Adm. Code 407.270(a)
Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(1)

Apr 22, 201126 citations

Organization and Administration
89 Ill. Adm. Code 407.70(e)(3)
Personnel Records
89 Ill. Adm. Code 407.120(a)(3)
Enrollment and Discharge Procedures
89 Ill. Adm. Code 407.250(i)(4)
Daily Arrival and Departure of Children
89 Ill. Adm. Code 407.260(f)(1)

22 more from this inspection

Daily Arrival and Departure of Children
89 Ill. Adm. Code 407.260(f)(2)
Daily Arrival and Departure of Children
89 Ill. Adm. Code 407.260(f)(3)
Guidance and Discipline
89 Ill. Adm. Code 407.270(a)(2)
Guidance and Discipline
89 Ill. Adm. Code 407.270(a)(5)
General Requirements for Personnel
89 Ill. Adm. Code 407.100(d)
General Requirements for Personnel
89 Ill. Adm. Code 407.100(c)(1)
General Requirements for Personnel
89 Ill. Adm. Code 407.100(c)(2)
Organization and Administration
89 Ill. Adm. Code 407.70(e)(1)
Organization and Administration
89 Ill. Adm. Code 407.70(e)(2)
Personnel Records
89 Ill. Adm. Code 407.120(a)(4)
Personnel Records
89 Ill. Adm. Code 407.120(a)(6)
Enrollment and Discharge Procedures
89 Ill. Adm. Code 407.250(d)
Enrollment and Discharge Procedures
89 Ill. Adm. Code 407.250(i)(2)
Daily Arrival and Departure of Children
89 Ill. Adm. Code 407.260(f)(4)
Program Requirements for All Ages
89 Ill. Adm. Code 407.200(p)
Diapering and Toileting Procedures
89 Ill. Adm. Code 407.340(i)
Guidance and Discipline
89 Ill. Adm. Code 407.270(a)(1)
Guidance and Discipline
89 Ill. Adm. Code 407.270(a)(3)
Guidance and Discipline
89 Ill. Adm. Code 407.270(a)(4)
Special Requirements for Infants and Toddlers
89 Ill. Adm. Code 407.210(b)
Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(1)
Health Requirements for Children
89 Ill. Adm. Code 407.310(a)(4)

Read every record and the state’s reports

State record — Illinois DCFS

Last visit: April 17, 2026
On file: 15 visits since April 2011 — 1 cited nothing
Fixed?: The latest correction deadline was May 17, 2026. Illinois DCFS does not publish whether it was made.
Most serious: Illinois DCFS does not publish a severity level for a citation, so there is no most-serious to name.

Illinois DCFS cites each subsection of a rule separately, so one audit of a filing cabinet can produce ten citations. It publishes the rule’s title and a correction deadline, but no description of what was observed.

Apr 2026 Monitoring visit 1 finding

Monitoring visit · April 17, 2026

Personnel Records

1 citation · 89 Ill. Adm. Code 407.120(a)(2) · Violation corrected

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Feb 2025 Compliance monitoring visit nothing cited

Apr 2024 Monitoring visit 5 findings

Monitoring visit · April 17, 2024

General Requirements for Personnel

2 citations · 89 Ill. Adm. Code 407.100(c)(1) through (5) · Rule cited again

89 Ill. Adm. Code 407.100(c)(1) · 407.100(c)(5)

Organization and Administration

1 citation · 89 Ill. Adm. Code 407.70(l) · Violation corrected

Physical Plant/Indoor Space

1 citation · 89 Ill. Adm. Code 407.370(e)(4) · Violation corrected

A citation the state’s report lists only by its code, FHSEC305.

0 citations · 89 Ill. Adm. Code · Rule cited again

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Mar 2023 Monitoring visit 2 findings

Monitoring visit · March 16, 2023

General Requirements for Personnel

2 citations · 89 Ill. Adm. Code 407.100(c)(5) through (f) · Rule cited again

89 Ill. Adm. Code 407.100(c)(5) · 407.100(f)

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Feb 2022 Monitoring visit 2 findings

Monitoring visit · February 28, 2022

General Requirements for Personnel

2 citations · 89 Ill. Adm. Code 407.100(c)(1) through (f) · Rule cited again

89 Ill. Adm. Code 407.100(c)(1) · 407.100(f)

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Mar 2020 Monitoring visit 2 findings

Monitoring visit · March 2, 2020

General Requirements for Personnel

1 citation · 89 Ill. Adm. Code 407.100(f) · Rule cited again

A citation the state’s report lists only by its code, FHSEC305.

0 citations · 89 Ill. Adm. Code · Violation corrected

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Mar 2018 Monitoring visit 1 finding

Monitoring visit · March 2, 2018

General Requirements for Personnel

1 citation · 89 Ill. Adm. Code 407.100(f) · Rule cited again

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Mar 2017 Monitoring visit 4 findings

Monitoring visit · March 16, 2017

Health Requirements for Children

2 citations · 89 Ill. Adm. Code 407.310(a)(4) through (5) · Rule cited again

89 Ill. Adm. Code 407.310(a)(4) · 407.310(a)(5)

General Requirements for Personnel

1 citation · 89 Ill. Adm. Code 407.100(f) · Violation corrected

Special Requirements for Infants and Toddlers

1 citation · 89 Ill. Adm. Code 407.210(b) · Violation corrected on site

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Feb 2016 Monitoring visit 3 findings

Monitoring visit · February 26, 2016

Personnel Records

1 citation · 89 Ill. Adm. Code 407.120(a)(4) · Rule cited again

Health Requirements for Children

1 citation · 89 Ill. Adm. Code 407.310(a)(4) · Rule cited again

Equipment and Materials

1 citation · 89 Ill. Adm. Code 407.380(j)(6) · Violation corrected

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Feb 2015 Monitoring visit 7 findings

Monitoring visit · February 17, 2015

Personnel Records

2 citations · 89 Ill. Adm. Code 407.120(a)(4) through (c) · Rule cited again

89 Ill. Adm. Code 407.120(a)(4) · 407.120(c)

Health Requirements for Children

2 citations · 89 Ill. Adm. Code 407.310(a)(4) through (5) · Rule cited again

89 Ill. Adm. Code 407.310(a)(4) · 407.310(a)(5)

Staffing Structure

1 citation · 89 Ill. Adm. Code 407.90(b) · Violation corrected

General Requirements for Personnel

1 citation · 89 Ill. Adm. Code 407.100(c)(5) · Rule cited again

Enrollment and Discharge Procedures

1 citation · 89 Ill. Adm. Code 407.250(i)(4) · Rule cited again

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Apr 2014 Monitoring visit 7 findings

Monitoring visit · April 25, 2014

Personnel Records

2 citations · 89 Ill. Adm. Code 407.120(a)(3) through (c) · Rule cited again

89 Ill. Adm. Code 407.120(a)(3) · 407.120(c)

General Requirements for Personnel

1 citation · 89 Ill. Adm. Code 407.100(c)(5) · Violation corrected

Qualifications for Child Care Director

1 citation · 89 Ill. Adm. Code 407.130(j) · Violation corrected

Substitutes

1 citation · 89 Ill. Adm. Code 407.170(b) · Rule cited again

Special Requirements for Infants and Toddlers

1 citation · 89 Ill. Adm. Code 407.210(b) · Violation corrected

Enrollment and Discharge Procedures

1 citation · 89 Ill. Adm. Code 407.250(d) · Rule cited again

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Feb 2013 Monitoring visit 2 findings

Monitoring visit · February 22, 2013

Physical Plant/Indoor Space

1 citation · 89 Ill. Adm. Code 407.370(e)(2) · Violation corrected

Equipment and Materials

1 citation · 89 Ill. Adm. Code 407.380(b) · Violation corrected

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Jun 2012 Monitoring visit 12 findings

Monitoring visit · June 5, 2012

Personnel Records

6 citations · 89 Ill. Adm. Code 407.120(a)(1) through (c) · Rule cited again

89 Ill. Adm. Code 407.120(a)(1) · 407.120(a)(2) · 407.120(a)(3) · 407.120(a)(4) · 407.120(a)(6) · 407.120(c)

Organization and Administration

3 citations · 89 Ill. Adm. Code 407.70(e)(1) through (3) · Rule cited again

89 Ill. Adm. Code 407.70(e)(1) · 407.70(e)(2) · 407.70(e)(3)

Background Checks for Personnel

1 citation · 89 Ill. Adm. Code 407.110 · Rule cited again

Qualifications for Early Childhood Teachers and School-age Workers

1 citation · 89 Ill. Adm. Code 407.140(h) · Violation corrected

Guidance and Discipline

1 citation · 89 Ill. Adm. Code 407.270(a) · Rule cited again

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Apr 2012 Monitoring visit 15 findings

Monitoring visit · April 10, 2012

Daily Arrival and Departure of Children

4 citations · 89 Ill. Adm. Code 407.260(f)(1) through (4) · Rule cited again

89 Ill. Adm. Code 407.260(f)(1) · 407.260(f)(2) · 407.260(f)(3) · 407.260(f)(4)

Health Requirements for Children

4 citations · 89 Ill. Adm. Code 407.310(a)(1) through (6) · Rule cited again

89 Ill. Adm. Code 407.310(a)(1) · 407.310(a)(4) · 407.310(a)(5) · 407.310(a)(6)

Enrollment and Discharge Procedures

2 citations · 89 Ill. Adm. Code 407.250(d) through (i)(4) · Rule cited again

89 Ill. Adm. Code 407.250(d) · 407.250(i)(4)

Personnel Records

1 citation · 89 Ill. Adm. Code 407.120(a)(2) · Rule cited again

Guidance and Discipline

1 citation · 89 Ill. Adm. Code 407.270(a) · Rule cited again

Diapering and Toileting Procedures

1 citation · 89 Ill. Adm. Code 407.340(a)(2) · Violation corrected

Physical Plant/Indoor Space

1 citation · 89 Ill. Adm. Code 407.370(n)(2) · Rule cited again

Outdoor Play Area

1 citation · 89 Ill. Adm. Code 407.390(i) · Rule cited again

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Apr 2011 Monitoring visit 26 findings

Monitoring visit · April 22, 2011

Guidance and Discipline

5 citations · 89 Ill. Adm. Code 407.270(a)(1) through (5) · Violation corrected

89 Ill. Adm. Code 407.270(a)(1) · 407.270(a)(2) · 407.270(a)(3) · 407.270(a)(4) · 407.270(a)(5)

Daily Arrival and Departure of Children

4 citations · 89 Ill. Adm. Code 407.260(f)(1) through (4) · Violation corrected

89 Ill. Adm. Code 407.260(f)(1) · 407.260(f)(2) · 407.260(f)(3) · 407.260(f)(4)

Organization and Administration

3 citations · 89 Ill. Adm. Code 407.70(e)(1) through (3) · Violation corrected

89 Ill. Adm. Code 407.70(e)(1) · 407.70(e)(2) · 407.70(e)(3)

General Requirements for Personnel

3 citations · 89 Ill. Adm. Code 407.100(c)(1) through (d) · Violation corrected

89 Ill. Adm. Code 407.100(c)(1) · 407.100(c)(2) · 407.100(d)

Personnel Records

3 citations · 89 Ill. Adm. Code 407.120(a)(3) through (6) · Violation corrected

89 Ill. Adm. Code 407.120(a)(3) · 407.120(a)(4) · 407.120(a)(6)

Enrollment and Discharge Procedures

3 citations · 89 Ill. Adm. Code 407.250(d) through (i)(4) · Violation corrected

89 Ill. Adm. Code 407.250(d) · 407.250(i)(2) · 407.250(i)(4)

Health Requirements for Children

2 citations · 89 Ill. Adm. Code 407.310(a)(1) through (4) · Violation corrected

89 Ill. Adm. Code 407.310(a)(1) · 407.310(a)(4)

Program Requirements for All Ages

1 citation · 89 Ill. Adm. Code 407.200(p) · Violation corrected

Special Requirements for Infants and Toddlers

1 citation · 89 Ill. Adm. Code 407.210(b) · Violation corrected

Diapering and Toileting Procedures

1 citation · 89 Ill. Adm. Code 407.340(i) · Violation corrected

DCFS compliance lookup On that page, enter provider number 242435 in the Provider box and choose Search; the compliance report downloads from the button on the result row.

Openings, child care subsidies, cost, hours and late pickup, teaching approach, ratios and staff, a typical day, and sick and biting policies aren’t on this page.

Details

6303696899

Address: 1111 E Warrenville Rd
License: license issued (il)

Run Dupage Montessori School? Correct or add anything here, free.

Add what is missing

Sources and dates

Where every fact on this page came from, and when Shortlist last checked it against that source. Anything Shortlist could not source is named here rather than left blank.

State record

From Illinois DCFS’s published reports, last checked October 9, 2026.

Details

Phone, Address, License — Checked August 2026 sunshine.dcfs.illinois.gov/…/ProviderLookup.aspx. To check it, open sunshine.dcfs.illinois.gov's Licensed Provider Lookup, enter "DUPAGE MONTESSORI SCHOOL" under Provider Name and 60563 under Zip, and press Search (DCFS provider 242435).
Who runs it — Checked October 2026 projects.propublica.org

Medium means the middle half of Chicago-area’s 1,949 licensed centers by state-licensed capacity: 49 to 118 children. Small is 8 to 48; large is 119 to 487.