How it compares in Houston
This practice Middle half of Houston Middle Houston practice
One- and two-star reviews
9% of 128 written reviews
0% 25%
A higher share than 75% of Houston practices
Middle Houston practice: 4%
Most common complaints
Pushed to have treatment they doubted 2
Of its 5 one- and two-star reviews since Oct 2023 · Read them below
4–5 star reviews
81% in the last 12 months, down from 92%
Share of written reviews giving 4–5 stars
Replies to reviews
34% of written reviews get a reply (11 of 11 one- and two-star)
0% 98%
About the same as most Houston practices
Middle Houston practice: 35%
Licensed in Texas since
2014 its longest-licensed confirmed dentist
1975 2022
Licensed more recently than 78% of Houston dentists we list
Middle Houston dentist: first licensed 2004
How we compare
Dr. Tam’s nitrous oxide permit Dr. Liana Tam holds a permit for nitrous oxide, which authorizes its use but does not establish that it is part of every visit.
LT
Dr. Liana Tam, DDS
✓ Texas license active, first licensed Jan 2014✓ Dental school: UTHealth Houston School of Dentistry, 2013✓ Holds a nitrous oxide (laughing gas) permit (since 2025)
NPI 1053742163 · Texas State Board of Dental Examiners, checked Sep 2026 · named on the practice's website
What they can help with
6 pages on its website · Listed on its business profile · Listed category: Cosmetic dentist
Listed on its business profile · 1 page on its website
Listed on its business profile · 3 pages on its website
Veneers & cosmetic: how it works Show
Also listed on its website
8 pages on its website
3 pages on its website
1 page on its website
3 pages on its website
8 pages on its website
2 pages on its website
Recurring concerns in bad reviews In the bad reviews we read since October 2023, recurring concerns include pressure toward treatment and a disorganized office. Both complaints also appear among reviews from the last 12 months.
Why they were unhappy
Last 12 months Earlier
One- and two-star reviews by quarter
Quarters · the last one partial
How we read these
Insurance network and claims NW Dental says it is in-network with Delta Dental, MetLife, Cigna and several other insurers, and files claims.
Ways to pay
Payment plans (its website) Accepts credit cards, debit cards and mobile pay (its business profile) Takes cash (its website)
Equipment and memberships
Equipment and treatments on its website Soft Tissue Laser Digital Impressions Ultrasonic Scaling Instrumentation
A custom fit for a child’s X-ray Three reviewers describe comfortable visits for children, including an office-made smaller X-ray bite piece for a child who needed one.
Your review of NW Dental
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When you can go
Open late until 7 pm, Thursday 34% of Houston practices stay open to 6 pm or later
Weekends Closed
Mon
9 am–6 pm
Tue
8:30 am–5 pm
Wed
8:30 am–5 pm
Thu
10 am–7 pm
Fri
9 am–6 pm
Sat
Closed
Sun
Closed
6a 9a 12p 3p 6p 9p
Hours from its listing. Check when you call.
Getting there
7670 Katy Fwy Ste 30 Houston, TX 77024
Get directions
Wheelchair-accessible entrance, parking, restroom and seating LGBTQ+ friendly Free parking lot On-site parking
Its business profile