Meet the Doctor

Rachel H. Thieberg, DDS, MS

A native of Ames, Iowa, Dr. Thieberg graduated magna cum laude with a Bachelor of Arts from Mount Holyoke College, South Hadley, MA in 1992. At the same time, Phi Beta Kappa awarded her membership. Her major was European Studies with a minor in Spanish Literature. Thereafter she completed a four-year Doctor of Dental Surgery degree at Baylor College of Dentistry in Dallas. During that time Omicron Kappa Upsilon, the national dental honor society, granted her membership, and she graduated valedictorian of her class. Continuing two years of post-doctoral education at Baylor, Dr. Thieberg earned a Certificate of Orthodontics in 2001. In addition, she received her Masters of Science degree, studying the effects of estrogen on bone growth. Dr. Thieberg has practiced orthodontics in Dallas since 2001 and in Wylie since 2007. A board certified orthodontist, Dr. Thieberg completed the American Board of Orthodontics examination in 2012 and was thereafter awarded diplomate status with the ABO.


Scheduling/Financial Coordinator


Registered Dental Assistant


Treatment Coordinator/Registered Dental Assistant


Registered Dental Assistant


Registered Dental Assistant

Our Office

Our office is east of Plano in Wylie at the intersection of FM 544 and Highway 78. Please see our detailed map for our office location once you arrive at the FM 544 and Highway 78 intersection. There is also a link to Google maps to provide directions from all locations.

Hours and Scheduling Guidelines

Our office hours are Monday, Tuesday and Thursday 8:00 am – 5:00 pm, Wednesday 7:00 am – 4:00 pm and Friday 7:30 am – 4:30 am. If you cannot keep an appointment, kindly notify us 24 hours in advance.

Getting Started

First Appointment -- Initial Examination

This appointment is a preliminary clinical examination. At this time, we will indicate preventive measures, treatment, or no treatment. In addition, we will establish a treatment fee and discuss your potential insurance benefit.

Second Appointment --Diagnostic Records

The diagnostic aids include molds of the teeth, facial and intra-oral photographs, and special orthodontic x-rays. This information will enable us to measure the molds, evaluate skeletal structures and develop a customized treatment plan.

Third Appointment --Consultation

In approximately one to two weeks, we will meet to review the findings, recommended treatment options, fees, and payment options. Please feel free to come prepared with any questions you may have.

***The above three steps are just a general outline. For instance, some of the three appointments may be combined if time allows and you are ready to move forward. As you can see, a good foundation when getting started helps insure a great outcome!

***We also understand that there may be more than one option for each patient’s condition, especially for adult patients in need of multi-disciplinary care. While we always encourage the most comprehensive plan, we are sensitive to individual circumstances and concerns. If multiple options exist, we hope to educate you about each choice, discussing the pros and cons and what can be expected in the future.

Insurance and Financial Policies

A beautiful smile and healthy bite is an investment that will last a lifetime. The patient’s cost of treatment varies based on severity, age, and length of treatment. Once a fee for services is established, we will offer a variety of payment options.

We are sensitive to individual circumstances and attempt to work with each family or individual on a case-by-case basis. There is a discount for payment in full at the beginning of treatment. Though, most choose to place an initial down payment and then pay the balance in monthly payments. Our payment plans do not have fees or interest charges. We accept cash, check, Visa and MasterCard.

We accept, and encourage, insurance. We will handle the filing of claims and make every effort to ensure you receive the maximum benefit to which you are entitled. We will accept assignment directly from your insurance carrier.