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Orthodontist · Jefferson Park

Glen Orthodontics - Chicago

5435 N Milwaukee Ave, Chicago, IL 60630

4.5+ stars in 100+ reviews Opening hours below

Reviews

4.5+ stars in 100+ reviews

4–5 stars: 95% · 1–2 stars: 5% · 161 written reviews

Last 12 months: 22 reviews · 86% 4–5 stars (was 96%) · Replies: 28% of reviews · 1 of 8 one- and two-star

54mention friendly, welcoming staff

7mention a clean office

  • Invisalign

Glen Orthodontics in Chicago

An orthodontist open Monday to Thursday only, 9 am to 5 pm (8 am on Tuesdays); 54 reviews call the staff friendly. Recent evidence is thin: 22 reviews in the past year, 86% four- or five-star against 96% before. Only 5% of its reviews are low-rated, but two of its six one- and two-star reviews since October 2023 describe being charged more than they were told.

Fact-checked · How we write these

How it compares in Chicago

One- and two-star reviews
5%of 161 written reviews
About the same as most Chicago practices
Middle Chicago practice: 5%
Most common complaints
Charged more than they were told2
Dentist was rude or dismissive2
Rude or unhelpful front desk2
Of its 6 one- and two-star reviews since Oct 2023 · Read them below
4–5 star reviews
86%in the last 12 months, down from 96%
Share of written reviews giving 4–5 stars
Replies to reviews
28%of written reviews get a reply (1 of 8 one- and two-star)
Fewer replies than 54% of Chicago practices
Middle Chicago practice: 33%
Licensed in Illinois since
2001its longest-licensed confirmed dentist
Licensed longer than 64% of Chicago dentists we list
Middle Chicago dentist: first licensed 2007

How we compare

Who you'll see

Dr. Renata Rzazewska-Johnson

  • Illinois license active, first licensed Sep 2001
  • Dental school: Northwestern University Dental School, 1998 (its website)
  • Training: Certificate in orthodontics, University of Michigan (its website)

NPI 1851469415 · Illinois Department of Financial and Professional Regulation, checked Sep 2026 · named on the practice's website

What patients say

Staff and office

54Friendly, welcoming staff
7A clean office

How we count themes

A recent front-desk complaint

One of the one- and two-star reviews we read from the past 12 months describes rude or unhelpful treatment at the front desk. Complaints about the dentist came earlier.

Why they were unhappy

  • Charged more than they were told2
    1 in the last 12 months
  • Dentist was rude or dismissive2
    None in the last 12 months
  • Rude or unhelpful front desk2
    1 in the last 12 months

One- and two-star reviews by quarter

Quarters · the last one partial

How we read these

Financing through its group's website

Its group's website advertises 0% in-house financing for up to two years. Third-party plans start at $100 a month with no down payment, and the site also describes discounts for full payment or multiple family members.

Ways to pay

  • Accepts credit cards, debit cards and mobile pay (its business profile)
  • Third-party lender financing (its website)

Orthodontic specialist registration

A specialist registration for braces and Invisalign appears in the national provider registry for this practice.

  • Braces & Invisalign

    Listed category: Orthodontist · Specialist taxonomy in the NPI registry · Named for it

Braces & Invisalign: how it works ShowFront teeth with braces, brackets joined by a wire, beside front teeth in a clear removable aligner tray.

Also listed on its website

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When you can go

Closed
Friday, and weekends

Hours from its listing. Check when you call.

Getting there

5435 N Milwaukee Ave
Chicago, IL 60630
Get directions
  • Wheelchair-accessible entrance and restroom
  • Free parking lot
  • On-site parking

Its business profile

In the practice's words

Its own business description

“We create beautiful smiles with eighteen years of experience.”

Need another dentist?

See all 192 Chicago practices for braces & Invisalign →

Sources and dates

Business listing and reviews, Sep 2026 · glenorthodontics.com, Sep 2026 · Illinois Department of Financial and Professional Regulation, Sep 2026 · NPI registry · City of Chicago community areas