Saturday hours start at 7 am and end at 2 pm, which helps anyone tied up on weekdays. Monday, Tuesday and Thursday close at 5:30 pm, and Wednesday and Friday at 2 pm, so a 9-to-5 job takes some planning. Gentle treatment and a clean office come up in the praise, and six patients mention paying through financing.
Website Details a VA Residency and Northwestern Training
The practice’s website says Dr. Collin Brant completed a general practice residency at Jesse Brown VA Medical Center in Chicago, and Dr. Gary Treinkman attended Northwestern University Dental School.
CB
Dr. Collin Brant, DDS
✓Illinois license active, first licensed Jul 2024
✓Dental school: University of Missouri Kansas City School of Dentistry (its website)
✓Training: General Practice Residency at Jesse Brown VA Medical Center, Chicago (its website)
NPI 1003654492 · Illinois Department of Financial and Professional Regulation, checked Sep 2026 · named on the practice's website
GT
Dr. Gary Treinkman, DDS
✓Illinois license active, first licensed Aug 1978
✓Dental school: Northwestern University Dental School (its website)
NPI 1467575514 · Illinois Department of Financial and Professional Regulation, checked Sep 2026 · named on the practice's website
How it compares in Chicago
This practiceMiddle half of ChicagoMiddle Chicago practice
One- and two-star reviews
4%of 988 written reviews
0%31%
A lower share than 55% of Chicago practices
Middle Chicago practice: 5%
Most common complaints
Disorganized office6
Insurance problems6
Payment, deposit or refund disputes6
Of its 26 one- and two-star reviews since Oct 2023 · Read them below
4–5 star reviews
88%in the last 12 months, down from 97%
Before
97%
Last 12 months
88%
Share of written reviews giving 4–5 stars
Replies to reviews
28%of written reviews get a reply (21 of 41 one- and two-star)
0%99%
Fewer replies than 53% of Chicago practices
Middle Chicago practice: 33%
Open Saturdays
Yesopen Saturdays
53%
of Chicago practices with listed hours are
Licensed in Illinois since
1978its longest-licensed confirmed dentist
19782025
Licensed longer than 95% of Chicago dentists we list
Business listing and reviews, Sep 2026 · evdental.com, Sep 2026 · Illinois Department of Financial and Professional Regulation, Sep 2026 · NPI registry · City of Chicago community areas