Meet Our Staff

Meet Dr.Cheng | Meet our Staff


Financial Coordinator:
Arianna Thomas
is a graduate of Augustana College. She is our insurance and financial coordinator. Arianna is married and enjoys spending time with her husand, Scott their family & friends. While they do not have children of their own she enjoys being an aunt! Her favorite part of coming to work each day is her coworkers and seeing all of the confidence gained in each patient's new smile! With her upbeat personality you will always see her with a smile! We are so happy to have Arianna on our team she takes great care of our patients!
Scheduling Coordinator:
Amy Wiegert
is new to the orthodontic field, but has a few years in the dental field. She took time off from the working world to raise her 3 children. She is very eager to learn about orthodontics and is enjoying working with all of our patients young and older. Amy is very active in her children’s school and sporting events. She enjoys camping and spending time with family and friends any chance she can. We are blessed to have such a great team member to take care of our patients!
Treatment Coordinator:
Rachel Helgerson
has a unique skill set. She has both dental assisting and front office experience. She has been in the dental field from a very young age. With her love of children and great sense of humor, she brings added laughter and fun to our office. Rachel is married and has 2 children. She loves camping and any outdoor activities.

Orthodontic Assistants:

Tammy Dewitt has been in orthodontics for 22 years. She has been with Cheng Orthodontics for 10 years. Tammy loves being an orthodontic assistant! She enjoys the fact that we see our patients once a month which allows her to build a great relationship with each one. It’s a pleasure to be part of the huge change that occurs with their smile too! Tammy is married to Jesse and has two children. She is also the biggest Packers fan around! We are so glad Tammy is with our team!
Franchesca Frisella-Bryant is always hard at work as she not only works at Cheng Orthodontics, but you can also see her taking care of her customers at Rockford Brewing Company. She is a 2013 graduate of Boylan Catholic High School. She enjoys playing basketball, shopping, hanging out with friends and making everyone laugh. She is a great addition to our team assisting our patients and helping in our lab.

Miranda – Bio coming Soon!

Becca Aguilar is a graduate of Rock Valley’s dental assisting program. She enjoys playing soccer, cheerleading and hanging out with her little nephew. Being around kids makes Becca smile. They can always make her laugh! She is a great addition to helping in our lab and keeping our clinical floor ready for our patients. We love having her on our team & helping our patients get a beautiful smile!
Joscelynn Martinez is a wonderful asset to our team. She has a great personality and loves to laugh! Working with kids keeps her on her toes. She loves to hear what they’ll say next! Joscelynn takes great care of our patients and keeps them at ease during their treatment. She is married and has two daughters. She enjoys spending time with family and friends. We are fortunate to have such a hardworking & fun team member to care for our patients!

Orthodontic Lab Technician:

Deb Sandwick is our hardworking laboratory technician who makes all of our appliances for our patients. She can also be seen working upstairs as a registered dental hygienist. She has been in the dentistry field for 30 years. Deb is married and has 3 children, two boys and a girl. In her free time she enjoys spending time with family and friends.