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AAO MemberInvisalign ProviderAccepting new patients
Miller Orthodontics - Sparta
Miller Orthodontics - Sparta is an AAO member orthodontic practice in Sparta, MI.
275 S State St, Sparta, MI 49345
4.9(149 reviews)
About Miller Orthodontics - Sparta
When a nearby practice closed abruptly, Dr. Zack Miller stepped in to help stranded patients, and mid-treatment transfers remain a notable part of this Sparta office's caseload.
Reviews describe a team that knows patients and their kids by name, with staff praised across dozens of visits for warmth and professionalism. Dr. Zack Miller is noted for personally explaining treatment options and for absorbing patients left without care when another local orthodontist's office closed unexpectedly. Families also mention phase 1 (early) treatment starting promptly, and several note anxious or nervous kids getting through first braces visits without tears.
Summary of 76 patient reviews, June 2018–September 2026, updated September 2026
Treatments offered
Who They Treat
Miller Orthodontics - Sparta provides orthodontic treatment for the following age groups:
Children
Ages 6–11
Teens
Ages 12–17
Adults
Ages 18+
Technology & Equipment
Miller Orthodontics - Sparta uses modern orthodontic technology to deliver precise, comfortable treatment.
3D Digital Scanning
iTero/TRIOS
Orthodontists at this office
provider
headshot
headshot
Dr. Zack Miller, DDS
NPI verified · no bio or photo on file
NPI VERIFIEDAccepting New Patients
Insurance accepted
1 plan listedGuardian
Miller Orthodontics - Sparta does not list Medicaid. Coverage varies by plan tier — confirm with the office before your first visit.
What patients say
Latest review 7 weeks ago
What patients praise
- Staff are repeatedly described as knowing patients and their children by name and treating them with warmth over the course of treatment.
- Dr. Miller is credited with stepping in to help patients whose previous orthodontist's office closed suddenly, and with walking families through treatment options himself.
- Several reviews mention anxious children getting through early braces appointments without tears, aided by a comfortable, unhurried approach.
Things to know
- A few reviews describe friction over billing, including a dispute about falling behind on monthly payments.
Who it suits
- Families with multiple kids in treatment
- Patients transferring mid-treatment from another practice
- Anxious or nervous younger patients
Doctors patients mention
- Dr. Zack Miller · 4 reviews
- Last 90 days
- 7 reviews
- averaging 5.0★
- Last 12 months
- 24 reviews
- averaging 4.8★
- Owner replies
- 3% of reviews
- typically within 25 days
5
Oct 2023Sep 2026
| Oct 2023 | 0 |
|---|---|
| Nov 2023 | 0 |
| Dec 2023 | 0 |
| Jan 2024 | 0 |
| Feb 2024 | 0 |
| Mar 2024 | 1 |
| Apr 2024 | 0 |
| May 2024 | 0 |
| Jun 2024 | 2 |
| Jul 2024 | 0 |
| Aug 2024 | 0 |
| Sep 2024 | 0 |
| Oct 2024 | 1 |
| Nov 2024 | 0 |
| Dec 2024 | 0 |
| Jan 2025 | 0 |
| Feb 2025 | 0 |
| Mar 2025 | 0 |
| Apr 2025 | 0 |
| May 2025 | 0 |
| Jun 2025 | 0 |
| Jul 2025 | 0 |
| Aug 2025 | 0 |
| Sep 2025 | 0 |
| Oct 2025 | 4 |
| Nov 2025 | 2 |
| Dec 2025 | 4 |
| Jan 2026 | 3 |
| Feb 2026 | 1 |
| Mar 2026 | 2 |
| Apr 2026 | 1 |
| May 2026 | 0 |
| Jun 2026 | 1 |
| Jul 2026 | 0 |
| Aug 2026 | 1 |
| Sep 2026 | 5 |
- 5★147
- 4★6
- 3★0
- 2★0
- 1★3
- 20185.0
- 20194.3
- 20205.0
- 20215.0
- 20235.0
- 20245.0
- 20254.6
- 20265.0
1★5★
- Braces10
- Invisalign / clear aligners6
- Early (phase 1) treatment3
PraiseCriticism
- Friendly staff53 / 1
- Great with kids15 / 1
- The orthodontist13 / 1
- Treatment results10 / 1
- Scheduling & wait times9 / 1
- Clear explanations9 / 1
- Gentle, comfortable care8
- Cost, insurance & financing6 / 2
| Theme | Praise | Criticism |
|---|---|---|
| Friendly staff | 53 | 1 |
| Great with kids | 15 | 1 |
| The orthodontist | 13 | 1 |
| Treatment results | 10 | 1 |
| Scheduling & wait times | 9 | 1 |
| Clear explanations | 9 | 1 |
| Gentle, comfortable care | 8 | 0 |
| Cost, insurance & financing | 6 | 2 |
Recent reviews from Google
4.9
149 reviews
popatoe child
2 months ago
Thanks for fixing the problem of my wire popping out of my bracket so much!!
Aimee Baskovic
5 months ago
Two daughters have been here with great results! The staff is caring and the cost is fair.
Katielyn Tomasunas
9 months ago
Love this office! Staff is very personable and take interest in the kids lives!
Mary Ann Wright
10 months ago
Miller Orthodontist kept sending me a reminder about my son’s appointment. Not indicating it was only a phone call appointment to set up another appointment. I had to hustle early in the morning getting my children ready when we were 3 minutes away from the office they call saying it’s an online appointment only. It would have been nice to know that in the beginning. Not a happy camper. Those auto reminders are just laziness in my opinion. Inconvenient on my end not knowing full details.
Gail Hill Merryman
10 months ago
Always on time for appointments, they explain the process clearly and take their time to make sure everything is correct before you leave.
Questions about this practice
What orthodontic treatments does Miller Orthodontics - Sparta offer?
Miller Orthodontics - Sparta offers: Invisalign, Clear Aligners, Traditional Braces, Self-Ligating Braces, Early Treatment.
Does Miller Orthodontics - Sparta accept dental insurance?
Miller Orthodontics - Sparta accepts Guardian.
Is Miller Orthodontics - Sparta accepting new patients?
Miller Orthodontics - Sparta is currently welcoming new patients in Sparta, MI. Call (616) 887-4002 to schedule.
Where is Miller Orthodontics - Sparta located?
Miller Orthodontics - Sparta is located at 275 S State St. Get directions: https://maps.google.com/?cid=5689690063731439071&g_mp=CiVnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLkdldFBsYWNlEAIYBCAA
What are the office hours for Miller Orthodontics - Sparta?
Miller Orthodontics - Sparta office hours: Mon 8:00 AM–4:00 PM, Tue 8:00 AM–4:00 PM, Wed 8:00 AM–4:00 PM, Thu 8:00 AM–4:00 PM, Fri Closed–Closed, Sat Closed–Closed, Sun Closed–Closed.
Does Miller Orthodontics - Sparta offer payment plans?
Yes, Miller Orthodontics - Sparta offers flexible payment plans to make orthodontic treatment affordable.
Who are the orthodontists at Miller Orthodontics - Sparta?
Miller Orthodontics - Sparta is staffed by Dr. Zack Miller. The practice is a member of the American Association of Orthodontists (AAO).
What is the patient rating for Miller Orthodontics - Sparta?
Miller Orthodontics - Sparta has a 4.9-star rating based on 149 patient reviews on Google.
Other Miller Orthodontics - Sparta locations
Research with AI
Accepting new patients
Payment Plans Available
Accessibility & Parking
Wheelchair Accessible Entrance
Wheelchair Accessible Parking
Wheelchair Accessible Restroom
CashCredit CardsDebit CardsContactless / NFC
Mon8:00 AM – 4:00 PM
Tue8:00 AM – 4:00 PM
Wed8:00 AM – 4:00 PM
Thu8:00 AM – 4:00 PM
FriClosed
SatClosed
SunClosed
- Google reviews synced
- SOURCED
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