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Summary
Dr. Anthony D. Thiessen is a native of the Sidney area and a graduate of Montana State University, Bozeman and the Oregon Health Sciences University. He returned to Sidney as an associate in 1996 and opened his own private practice in 1999. Dr. Thiessen established an early goal in life, utilizing information taught from his parents and grandparents, and that is to give everything in life 110%.  In pursuit of his goal he graduated High School with top honors and excelled not only in academics but sports as well.  Continuing his goal in Dental School he excelled to achieve many prestigious awards there as well. These include the Academy of General Dentistry's Award for being the top clinician of the graduating class of 1996. This very prestigous award was voted on by his instructors and evaluators from the academy. During graduation he also received the award for being the top laboratory technician of his class and top honors in endodontics. He was known for his …expertise while in Dental School and currently by his patients and respected professional collegues.
Dr. Thiessen's passion is to provide patient's with the area's most advanced dental health care in a comfortable, relaxed environment. Many years later, he continues to improve his education, equipment and office environment in order to provide that quality of care.
Dr. Thiessen is a profectionist and his patients, family and friends will attest to that. He is an artist and an architect at heart and knew that he possessed the innate talent to design and develop smiles that were not only beautiful, but also healthy and comfortable for his patients.
Dr. Thiessen has taken numerous courses at the most prestigous Las Vegas Institute for Advanced Dental Studies (LVI), and has taken numerous other courses all over the USA. Dr. Thiessen's thirst for continuing education for himself is unrivaled. He is a member of the American Dental Association and the Montana Dental Association. He also takes great pride to be a very active member in the International Association of Orthodontics and the American Academy of Craniofacial Pain. He typically completes between 100 and 200 hours of continuing dental education each year.
Dr. Thiessen resides in Sidney and loves the great outdoors and sports of all kinds. He is a very involved father and can often be found spending time with his children and family. He has a passion for health and fitness and has goals to compete in a triathlon some day.  Â
Read More Read less Dr. Thiessen's passion is to provide patient's with the area's most advanced dental health care in a comfortable, relaxed environment. Many years later, he continues to improve his education, equipment and office environment in order to provide that quality of care.
Dr. Thiessen is a profectionist and his patients, family and friends will attest to that. He is an artist and an architect at heart and knew that he possessed the innate talent to design and develop smiles that were not only beautiful, but also healthy and comfortable for his patients.
Dr. Thiessen has taken numerous courses at the most prestigous Las Vegas Institute for Advanced Dental Studies (LVI), and has taken numerous other courses all over the USA. Dr. Thiessen's thirst for continuing education for himself is unrivaled. He is a member of the American Dental Association and the Montana Dental Association. He also takes great pride to be a very active member in the International Association of Orthodontics and the American Academy of Craniofacial Pain. He typically completes between 100 and 200 hours of continuing dental education each year.
Dr. Thiessen resides in Sidney and loves the great outdoors and sports of all kinds. He is a very involved father and can often be found spending time with his children and family. He has a passion for health and fitness and has goals to compete in a triathlon some day.  Â
Quick Facts
- accepting new patients
- 2 insurance plans accepted
- 1 specialty
- 8 areas of expertise
- 1 office location
- Male
Office Location
Healthy Smiles Dental Group
203 2nd Ave SWSidney, MT 59270 Tel: (406) 433-7645
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 2:00 pm
SatClosed
SunClosed
Compare with Similar Providers
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| Dr. Anthony D Thiessen, DDS | Dr Michael Sigler, DDS | Dr Lola Colbert, DDS | Dr Derek Weigand, DMD |
| Dentistry | Dentistry | Dentistry | Dentistry |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 40 Years of Experience | 23 Years of Experience | 13 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks Spanish, English | Speaks Spanish, English | Speaks Spanish, English | |
| Sidney , MT | West Des Moines , IA | Midvale , UT | Juneau , AK |
| Med School: University of Missouri | Med School: University of Detroit Mercy School of Dentistry | Med School: Midwestern School of Dental Medicine | |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Anthony D Thiessen
Medical Specialties
Dr. Anthony D Thiessen has the following specialty
Specialty Expertise
Dr. Anthony D Thiessen has the following 8 areas of expertise
Certifications, License, & Education
MEDICAL LICENSE
Doctor Of Dental Surgery, Montana, 2026, Expired
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Frequently Asked Questions
- Where is Dr. Anthony Thiessen's office located?
- Dr. Anthony Thiessen's office is located at 203 2nd Ave SW, Sidney, MT, 59270.
- Does Dr. Anthony Thiessen accept virtual/telehealth appointments?
- Dr. Anthony Thiessen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Does Dr. Anthony Thiessen accept my insurance?
- You can see the insurance plans that Dr. Anthony Thiessen accepts on their Vitals profile.
- Is Dr. Anthony Thiessen accepting new patients?
- Dr. Anthony Thiessen is accepting new patients on Vitals. View Dr. Anthony Thiessen's profile on Vitals to make an appointment.
- How can I make an appointment with Dr. Anthony Thiessen?
- You can find contact information for Dr. Anthony Thiessen here on Vitals.
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