Our Office

LT ortho office is located on the 11th floor of the Chase Bank building located on the north east corner of Hywy 75 and Beltline Road, in Richarson, TX. There is also a link to Google Maps to provide directions from all locations.

Hours and Scheduling Guidelines

We are open Monday, Wednesday, Thursday from 8am-5pm and 7am-4pm on Tuesday. If you cannot keep an appointment, kindly notify us 24 hours in advance.

Getting Started

Initial Appointment

Your first visit with us is complimentary! Before you arrive at our office, we ask that you please complete our online forms or print and fill out our forms and bring them with you.

At this preliminary examination, we will typically begin by taking a diagnostic panoramic X-ray, followed by the doctor’s orthodontic exam to assess and discuss your particular orthodontic needs and define a plan of treatment, if needed. If treatment is indicated, we will determine and discuss with you the fees and approximate length of treatment. If you desire to proceed, we will finish the remaining diagnostic records (cephalometric X-ray, study models, intra-oral and facial photographs) at this same visit.


For more complex cases, or for cases in which there may be more that one option of treatment*, an additional consultation appointment may be recommended, generally a week or two after the orthodontic records are taken.

*When more than one option of treatment is presented, we will discuss the pros and cons of each option, what outcome to expect, and any difference in fees. While we always desire that our patents opt for the most ideal or comprehensive plan, we are sensitive to individual circumstances and concerns and will customize a plan for you accordingly.

***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, getting started requires a good foundation to help 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 there are multiple options, 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. Cost of treatment varies for each patient and is based on severity, age, and length of treatment. We offer a variety of payment options, after establishing the fee for services.

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.There are no fees or interest charges associated with our payment plans. We accept cash, check, Visa and MasterCard.

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

Meet the Doctors

Rodney P. Lewis, DDS, MS, PA

Dr. Lewis, a native Texan, was born and raised in Canyon. He attended West Texas A & M University where he graduated summa cum laude with a Bachelor of Science in 1992. Dr. Lewis completed a four-year Doctor of Dental Surgery degree at Baylor College of Dentistry in Dallas. While at Baylor he was granted membership into Omicron Kappa Upsilon, the national dental honor society, and graduated second in a class of 86. His post-doctoral education includes two years of orthodontic specialty training at Baylor, where he earned a specialist’s Certificate of Orthodontics in 2000. His Masters of Science degree focused on the study of the function of the lower jaw. Afterward the American Journal of Orthodontics and Dentofacial Orthopedics published his results. Dr. Lewis has maintained a private practice specializing in orthodontics in Richardson since 2000 and Wylie since 2007. A board certified orthodontst, Dr. Lewis completed the American Board of Orthodontics examination in 2012, afterward awarded diplomate status with the ABO.

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. 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. Lewis completed the American Board of Orthodontics examination in 2012, thereafter awarded diplomate status with the ABO.

Meet the Staff

Our staff of highly trained clinical technicians and administrative personnel have over 150 years of cumulative experience in orthodontics. A team of “people specialists,” we are here to serve you any way that we can. We take a personal approach to orthodontic treatment because we see it as a time of shaping lives, not simply teeth.


As our scheduling coordinator, Hope brings a welcoming smile to our reception area in Richardson. With over ten years of dental experience, Hope is sure to help our patients feel comfortable in the office. A native of Dallas, Hope enjoys fitness, real estate and spending time with her family. Having recently been an orthodontic patient herself, Hope is ready to help our patients and their families as they begin to transform their smiles.


With over six years experience in the dental field, Juanita is happy to be assisting Drs. Lewis and Thieberg. She’s friendly, outgoing and always smiling! Juanita is proud to be a very busy soccer mom of two boys. She tries to attend as many sporting events as possible and loves the Dallas Cowboys emphatically. Juanita cherishes her time with her family, loves competition and would love to talk to you about sports!


Lisa has been working as an orthodontic assistant since 1997 and works mainly in our Wylie office. She was born in Dallas but grew up in Duncanville. When not at work, she loves to bake and spend time with her two amazing kids and little pug, Tinkerbell. She is also active in her church and Women’s ministry leadership team.


Nancy loves to learn the latest advancements in dental care and orthodontics and is happy to bring her eighteen years experience to our assisting team! Originally from Brownsville, Nancy makes her home in Richardson and loves our great team environment and state-of-the-art facility. Quick to laugh and smile, Nancy strives to provide each of her patients with the best possible care and also help them on their path to creating a terrific smile!


Sandra started her relationship with Wylie Orthodontic Specialists in February, 2009 as the mother of one of our new patients. After many visits with her daughter, we recruited her to join our team in April, 2010. She currently serves as our Wylie scheduling coordinator and loves greeting our patients with a smile over the phone and in person. Sandra grew up in the Dallas area and moved to Nevada in 2004. She and Wayne, her husband, have been married since 1990 and have two children. She loves gardening and spending time with her family, especially her granddaughter.


Stella is the treatment coordinator in our Richardson office. She loves helping new patients and families learn about orthodontics and the benefits of a beautiful smile. She recently moved from southwest Kansas to Dallas, having worked for the same orthodontist for fifteen years. Previously, she received her Associates Degree from GCCC in Garden City Kansas. Stella loves to read, loves dogs, and spending time with her two grown children. Even though she is from Kansas, she’s always been an avid Cowboys fan at heart.