Skip to main content
toothlocal

Orthodontist · South Lamar

Nantz Orthodontics

3901 S Lamar Blvd Suite 420 Fourth Floor, Austin, TX 78704

5 stars in 250+ reviews Opening hours below
Call (512) 445-3355 Directions Website (nantzorthodontics.com, opens in a new tab)

Reviews

5 stars in 250+ reviews

4–5 stars: 99% · 1–2 stars: 1% · 341 written reviews

Last 12 months: 20 reviews · 100% 4–5 stars · Replies: 8% of reviews

132mention friendly, welcoming staff

10mention being on time, visit after visit

9mention their braces treatment

Read what patients say (8 themes) ↓Write a review
  • Invisalign

What patients say

How the visit felt

7Children who enjoy going
7Explaining everything before doing it

Staff and office

132Friendly, welcoming staff
8A clean office

Getting seen

10Being on time, visit after visit
6Being seen on time

Why patients came

9Their braces treatment
6A free first consultation

How we count themes

Nitrous oxide permit

Dr. Johnny Nantz holds a nitrous oxide permit.

Dr. Johnny Nantz, DDS

  • Texas license active, first licensed Jun 2005
  • Dental school: Creighton University, 2002
  • Holds a nitrous oxide (laughing gas) permit (since 2005)

NPI 1609033141 · Texas State Board of Dental Examiners, checked Sep 2026 · named on its business listing

Fewer bad reviews than most Austin practices we list

Nantz has a smaller share of bad reviews than most Austin practices we list.

One- and two-star reviews
1%of 341 written reviews
A lower share than 83% of Austin practices
Middle Austin practice: 3%
Replies to reviews
8%of written reviews get a reply
Fewer replies than 74% of Austin practices
Middle Austin practice: 36%
Licensed in Texas since
2005its longest-licensed confirmed dentist
Licensed longer than 60% of Austin dentists we list
Middle Austin dentist: first licensed 2008

How we compare

Remote checkups and urgent help

Three reviewers describe urgent help with braces problems, including same-day or after-hours support. The website also lets prospective patients submit five smile photos for an assessment and offers virtual checkups for established patients.

Cost and paying

No prices on its website

Ways to pay

  • Accepts credit cards, debit cards and mobile pay (its business profile)
  • Takes cash (its website)

Specialist Listings for Orthodontic Care

The state board lists a registered specialist for braces and Invisalign here. The national provider registry lists a specialist here.

  • Braces & Invisalign

    Registered specialist with the state board · Listed category: Orthodontist · Specialist taxonomy in the NPI registry

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

Equipment and memberships

Equipment and treatments on its website
Digital Impressions

Your review of Nantz Orthodontics

No account needed · read by us before it goes up

Write a review

When you can go

Opens early
7:30 am, Thursday
30% of Austin practices open before 8 am
Closed
Friday, and weekends

Hours from its listing. Check when you call.

Getting there

3901 S Lamar Blvd Suite 420 Fourth Floor
Austin, TX 78704
Get directions
  • Wheelchair-accessible entrance, parking and restroom
  • Free parking lot

Its business profile

In the practice's words

Its own business description

“At Nantz Orthodontics, we believe that everyone deserves to have a beautiful smile. It is our goal to offer our patients the best care orthodontics has to offer in a fun and exciting environment in South Lamar. …”

Need another dentist?

See all 139 Austin practices for braces & Invisalign →

Ready to call?

Call (512) 445-3355 Other Austin dentists

Sources and dates

Business listing and reviews, Sep 2026 · nantzorthodontics.com, Sep 2026 · Texas State Board of Dental Examiners, Sep 2026 · NPI registry · City of Austin planning areas

Report a mistake Is this your practice? Update its details