Dr. Theodore Siegel, DDS
NPI 1619166725 · Illinois Department of Financial and Professional Regulation, checked Sep 2026 · named on the practice's website
General dentist · Avondale
Big Smile Dental
2833 N Milwaukee Ave, Chicago, IL 60618
4.5+ stars in 250+ reviews
Opening hours below
Reviews
4.5+ stars in 250+ reviews
4–5 stars: 95% · 1–2 stars: 5% · 300 written reviews
Last 12 months: 38 reviews · 92% 4–5 stars · Replies: 45% of reviews · 7 of 14 one- and two-star
72mention friendly, welcoming staff
15mention explaining everything before doing it
15mention a gentle touch
Reviews raise concerns about treatment discussions
Four one- and two-star reviews raise concerns about treatment being discussed or agreed on, including disputed recommendations and work started after affordability concerns.
How the visit felt
15Explaining everything before doing it
15A gentle touch
5Putting nervous patients at ease
Staff and office
72Friendly, welcoming staff
12An honest dentist
8A clean office
Getting seen
5Being fitted in at short notice
Who comes here
8Spanish or other languages spoken
6Paying without insurance
A dentist licensed in Illinois since 1940
Illinois records show Dr. Theodore Siegel was first licensed in 1940, placing him among the dentists with the longest licensing histories at the Chicago dentists we list.
- One- and two-star reviews
- 5%of 300 written reviews
- A lower share than 51% of Chicago practices
- Middle Chicago practice: 5%
- Replies to reviews
- 45%of written reviews get a reply (7 of 14 one- and two-star)
- More replies than 59% of Chicago practices
- Middle Chicago practice: 33%
- Open Saturdays
- Yesopen Saturdays
- Licensed in Illinois since
- 1940its longest-licensed confirmed dentist
- Licensed longer than 100% of Chicago dentists we list
- Middle Chicago dentist: first licensed 2007
Reviews describe annual community care
Community care comes up in four reviews describing free dental care each year. Several place it around Valentine's Day, suggesting a recurring event.
Cost and paying
No prices on its website
Ways to pay
- Accepts payment plans (its business profile)
- Accepts credit cards, debit cards and mobile pay (its business profile)
- Senior Discount (its website)
- Accepts CareCredit (its website)
What they can help with
-
Veneers & cosmetic
Listed on its business profile · 1 page on its website · Listed category: Cosmetic dentist
Veneers & cosmetic: how it works Show
Also listed on its website
-
Dental implants
Federal Open Payments records link a confirmed dentist to the treatment's maker · Listed category: Dental implants provider
-
Braces & Invisalign
Federal Open Payments records link a confirmed dentist to the treatment's maker · Listed category: Orthodontist
Who you'll see
Equipment and memberships
- Equipment and treatments on its website
- Low-Radiation Digital X-Rays
Your review of Big Smile Dental
No account needed · read by us before it goes up
When you can go
- Open late
- until 6 pm, Tuesday to Thursday
- 57% of Chicago practices stay open to 6 pm or later
- Saturday
- 9 am–2 pm
- 53% of Chicago practices open on Saturdays
- Closed
- Monday
Mon
Closed
Tue
9:30 am–6 pm
Wed
9:30 am–6 pm
Thu
9:30 am–6 pm
Fri
9:30 am–5 pm
Sat
9 am–2 pm
Sun
Closed
6a9a12p3p6p9p
Hours from its listing. Check when you call.
Getting there
2833 N Milwaukee AveChicago, IL 60618 Get directions
- Wheelchair-accessible entrance and restroom
Its business profile
Need another dentist?
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Orthodontic Experts Chicago
0.4 mi · 4.5+ stars in 500+ reviews
-
Dental Town-Belmont
0.5 mi · 4.5+ stars in 500+ reviews
-
A Brush Above Family Dentistry
0.6 mi · 4.5+ stars in 250+ reviews
Ready to call?
Sources and dates
Business listing and reviews, Sep 2026 · bigsmiledental.com, Sep 2026 · NPI registry · City of Chicago community areas