• 1118 N Larkin Ave.
  • Joliet, IL 60435

(815) 725-4070

  • 1022 W. US Route 6
  • Morris, IL 60450

(815) 942-2133

  • 640 Bankview Dr.
  • Frankfort, IL 60423

(815) 469-4062

  • 1511 N. Convent St., Suite 300
  • Bourbonnais, IL 60914

(815) 401-5260

  • 24023 W. Lockport St., Suite 109
  • Plainfield, IL 60544

(815) 439-4727

New Lenox
  • 1860 E Lincoln Highway
  • New Lenox, IL 60451

(815) 280-4222



Meet the Doctors

At Associated Orthodontists, you will have the confidence of being treated by one of our highly trained orthodontists. Our doctors are committed to creating a customized, stress-free and rewarding orthodontic experience for you and your family. Our orthodontists include the most experienced and renowned orthodontists in the area, committed to improving smiles and making a positive impact in their communities.
Click on doctor’s photo for bio

Dr. Casey

Dr. Cortopassi

Dr. Soderquist

Dr. Jones

Dr. Casey

Dr. Michael Casey absolutely loves orthodontics! In practice for over 28 years, Dr. Casey enjoys getting to know his patients and making them laugh, even if he has to dance an Irish jig! Dr. Casey obtained his Bachelor of Science degree at Loyola University before earning his Doctorate of Dental Surgery and certificate in orthodontics at the University of Illinois in 1986. He was honored with acceptance into Alpha Sigma Nu, the Jesuit Honor Society. Dr. Casey is an active member of the American Dental Association, Illinois State Dental Society, Will County Dental Society, American Association of Orthodontists, Illinois Society of Orthodontists, Midwestern Society of Orthodontists, American Equilibration Society and the Southwest Dawson Study Club. A current resident of Lemont, Dr. Casey and his wife, Paris, have a son, Neal, and twin daughters, Natalie and Lea. In his spare time, he enjoys snow skiing, water skiing, swimming, golfing and playing with Boots, their Jack Russell/Beagle mix. Dr. Casey also likes to rock out to Elton John and Bruce Springsteen.

Dr. Cortopassi

Dr. David Cortopassi has been an orthodontist for over 20 years and has been a part of Associated Orthodontists since 1989. He dreamt of becoming an orthodontist ever since having braces himself in junior high. He knew that he wanted to be the person who helped create new smiles, build confidence in people and see their delight once that final bracket was removed. Pursuing his dream, he graduated in 1983 from Loyola University Chicago and later obtained his dental degree from Loyola University School of Dentistry in 1987. He continued his education at the University of Illinois-Chicago where he completed his master’s degree and orthodontic residency in 1989. Dr. Cortopassi is very knowledgeable and constantly stays up to date with the latest technological advances in orthodontics by being an active member of the American Dental Association, Will County Dental Society, American Association of Orthodontists, Midwestern Society of Orthodontists and the Illinois Society of Orthodontists. Dr. Cortopassi is married to the “greatest woman in the world.” In fact, he and his wife, Mary, have been happily married for almost 25 years and have three children: Chris, Mia and Dena. A furry sixth member of the Cortopassi family is their loveable dog, Peaches. Having three kids has certainly kept him busy with school activities. Weekends are often spent watching Chris play football as a University of Dayton Flyer, or to Indy to visit with his daughter, Mia, and catch a Butler basketball game. And to round it all off, he even participates in Dena’s competitive dance competitions. Now this is a man who can do it all. In addition to knowing how to straighten teeth, Dr. Dave is also conversant in both Italian and Spanish and is extremely proud of his Italian heritage. When he gets the chance, he loves to ride his bike, cook, read a good book or challenge someone in a fun game of Trivial Pursuit. But what Dr. Cortopassi enjoys the most is knowing that when he leaves his family every day to go to work, he is coming to his other family at AO.

Dr. Soderquist

Dr. Scott Soderquist, better known as “Dr. Scott,” was born and raised in Bolingbrook, IL. These days, he and his wife, Angela, live in Naperville with their three kids Nathan, Ella, and Olivia and their dog, Daisy. Dr. Scott graduated from Bolingbrook High School in 1993, lettering in football, baseball and wrestling, with Academic All-American honors in the first. He then continued school and graduated in 1997 from Illinois Wesleyan University with a Bachelor of Arts degree in Biology. In 2001, he obtained his Doctorate with honors from the University of Illinois and graduated third in his class. While at UIC, Dr. Scott received multiple academic achievements, including Top Third Year Dental Student by the Illinois State Dental Society. He continued to the University of Illinois and completed a three-year orthodontic residency to obtain a master’s in Oral Science. He then published his master’s thesis in the American Journal of Orthodontics after graduating from UIC and has co-authored other articles as well. Do not let his baby face fool you . . . he is full of knowledge. In 2004, Dr. Scott joined Associated Orthodontists and still maintains an active membership at the American Dental Association, Illinois State Dental Society, Will County Dental Society, American Association of Orthodontists, Chicago Dental Society and is a part of the American Cleft Palate Craniofacial Association. He is currently President-Elect of the Will County Dental Society, a delegate of the Illinois Dental Society and an editorial board member of the Orthodontic Practice US. Dr. Scott is a certified Damon® System educator. He knows this system so well that he is president of the Midwest Damon Study Club. Yet, even with all this responsibility, he still manages to make time for his community by volunteering at the Will-Grundy Medical Center, Plainfield Central High School Career Day and the Give Kids a Smile program. When his busy life loosens up, Dr. Scott loves riding his ATV’s and snowmobiling with his family. Watching “Da Bears” and Blackhawks is a must for him. You might even find him sneaking in a game of Rock Band or Guitar Hero here and there.

Dr. Jones

Dr. Patrick G. Jones, more commonly known as “Dr. Pat” to patients (and occasionally, “Dr. P-Diddy Jones” to fellow staff), is a Chicagoland native and a graduate of St. Rita High School. It was there that he discovered his ability to kick field goals for his football team, while still maintaining his GPA for National Honor Society in between plays. Dr. Pat went on to graduate from University of Illinois in Urbana, with a bachelor’s degree in Biology in 1991. Four years later, he graduated from the University of Tennessee College of Dentistry and received The United States Army’s Health Professions Scholarship. Associated Orthodontists is proud to say that Dr. Pat served in the U.S. Army from 1995 to 2003! During his service, he opened his own dental practice and provided comprehensive dental care and orthodontics for nine years. He returned to school for orthodontic specialty training from Jacksonville University and was the president of his class. He is a natural leader and, as such, has received many honors in both college and dental school! Associated Orthodontists was happy to welcome Dr. Pat in 2010 as a part of our team. But being an orthodontist is only a small part of his very busy life! To this day, he is an active member of the American Dental Association, the American Association of Orthodontists, the Midwest Society of Orthodontists, the Illinois Society of Orthodontists, the Illinois State Dental Society, the Will County Dental Society, and the Chicago Dental Society. You go, Dr. P-Diddy! Dr. Pat’s family life is just as active as his professional life. He and his wife Kathy settled in New Lenox in 1998 and have four sons: Nick, Tyler, Billy and Danny. There is never a dull moment in the Jones household. In his free time, he enjoys taking the family out for fishing trips. In fact, anything that has to do with water sports has them ready to dive in. Dr. Pat’s other passion is coaching little league baseball and basketball in the New Lenox community. But do not get him wrong . . .  even with four sons, Dr. Jones still has a soft side. He likes to think his secret talent is being a dog whisperer, so we can only guess how often he is caught talking to his dogs, Hollie and Ginger (baby voice included).

Meet the Team

The specialists at Associated Orthodontists take great care in selecting professional, warm and experienced team members in each of their offices. You will find friendly faces in Joliet, Morris, Plainfield, Frankfort, New Lenox and Bourbonnais ready to perfect your smile. We are equipped to bring you the most pleasant orthodontic experience you have ever had. We also believe great service goes beyond exceptional orthodontic treatment; it also includes maintaining a clean and welcoming office, staying up to date on the latest orthodontic treatments and answering our patients’ questions fully and honestly. We are happy to discuss any treatments or concerns with you. Feel free to call our office or stop by and say hello. The Associated Orthodontists team is excited to bring you the best orthodontics in Illinois.

Business Manager
Treatment Coordinators
New Patient Coordinators
Scheduling Coordinators
Clinical Team
Records/Sterilization Team
Lab Team
Finance Team
Marketing Team


Julia has been the Business Manager of Associated Orthodontists since March 2010 and has been working in the healthcare industry for 15 years. She loves the variety of her job as business manager, including working with patients, marketing, financial, clinical and being involved in other important departments. Julia is a board member of the Miracle League of Joliet and enjoys golfing, cooking and shopping.


Evie is the Scheduling Coordinator at the Plainfield and Morris locations. She loves spending time with her family, especially on football Sundays. Evie loves home decorating and, of course, shopping! Since she does not like yoga, Evie finds relaxation in taking care of her pool.


Kara is a Scheduling Coordinator in our Frankfort and Bourbonnais offices and has been at Associated Orthodontists since 2015. She has worked in the orthodontic field for 14 years and loves helping brighten smiles! In her spare time, she enjoys spending time with her daughters and traveling.


Kathie is a Scheduling Coordinator in our Plainfield and Morris offices and has been at Associated Orthodontists since 2015. When she is not watching sports with her husband and sons, she enjoys gardening, sketching, crafting and anything that involves being out in the sun.


Angie has been our Scheduling Coordinator at the Frankfort location since 2013. From July through October, you can find her at her son’s football practices and games, where her husband is also the coach. Go Romeoville Spartans! Angie enjoys reading a good book and LOVES all things wedding and wedding planning. Her husband also serves in the US Air Force.



Amanda joined the team in 2016 as Scheduling Coordinator in our Joliet, Plainfield and Frankfort offices. She loves seeing patients complete their treatment with a brand new, exciting smile. When she’s not greeting patients, Amanda enjoys soccer, yoga, interior design and listening to waves on the beach. She also keeps herself busy with her FOUR furry babies, and has a passion for helping local animal shelters.


Cynthia has been working for Associated Orthodontists since September 1987. Previously, she coordinated insurance and financial tasks for all of our locations. Cynthia loves working with great coworkers who are also lifelong friends. Her hobbies include singing with “Sweet Adeline’s” and reading and spending time with her husband, children and dachshunds.


Lynn has been with Associated Orthodontists for 44 years. She enjoys meeting patients and their families and seeing patients’ smiles when treatment is completed. Her hobbies include gardening, reading, shopping, baking, exercising and relaxing on the beach in Michigan and Florida.


Trudi is the Treatment Coordinator for our Morris and Plainfield offices. She has been working for Associated Orthodontists since February 2009 and has three years of orthodontic experience prior to her current position. Her favorite thing about orthodontics is seeing the before and after pictures of each patient. Trudi loves traveling, biking and gardening.


Shirley is the Treatment Coordinator for our Joliet office. She came to Associated Orthodontists in 2013 with over 27 years of experience in the Orthodontic/Dental Field. One of her favorite things about working for AO is meeting new patients and their families. She enjoys going out to dinner and vacationing with family and friends. Her favorite pastime is spending time with her husband, 2 kids, and her golden retriever, Kobe.


Kari is the Treatment Coordinator for our Frankfort and Bourbonnais offices. She has ten years of orthodontic experience. Kari has been working for Associated Orthodontists since September 2011. Her favorite thing about being a Treatment Coordinator is meeting the new patients and their families. She loves taking trips to the beach and enjoys relaxing with family and friends with a movie or dinner.


Alicia is the Clinical Coordinator for our Joliet office. Her hobbies include having a good time and spending time with her family and friends.


Erin is the Clinical Coordinator for the Morris and Plainfield offices. Since 2005, she has worked in the clinic and loves her one-on-one interaction with our patients and staff. Erin strives to do what’s best for our team, and lives by the motto “Positive leadership uplifts everyone! All that it takes is the best version of you!” In her spare time, she is busy at home with her boys, her two dogs and likes to dig into a good book or movie.


Erin is a Clinical Assistant. She enjoys running, shopping and spending time with her family and dog, Turner.


Jessica is a Clinical Assistant in our Plainfield and Morris offices. This world traveler’s goal is to visit all the continents by the age of 35 (only 4 more to go!). In her spare time, she enjoys cooking her favorite Italian meals and flipping houses with her husband.


April is a Clinical Assistant. Her hobbies include yoga, watching movies, reading books and enjoying bonfires with friends and family.


Nichole is a Clinical Coordinator and has been with AO since 2013. This White Sox fan loves playing softball and enjoys doing crafts in her spare time. However, spending time with her husband and son is her all-time favorite thing to do.


Veronica is a Clinical Assistant and has been with Associated Orthodontists since 2012. Her favorite thing to do is to spend time with her husband, four children and her dog, Droopy. However, she also finds joy in cooking and enjoying the peace and quiet after everyone is asleep at night.


Amy is a Clinical Assistant. Her hobbies include playing sports and spending time with her children.


Elena is a Clinical Assistant in our Frankfort and Bourbonnais offices. She enjoys shopping and spending time with her friends and daughter. Her favorite part of working at Associated Orthodontists is watching the patients transform and seeing their confidence grow.


Ashley is a Clinical Assistant and an aid to the front desk. Her hobbies include traveling, volunteering at the animal shelter, being outdoors and spending time with family and friends.


Aime is a Clinical Assistant. She enjoys hanging out with friends and spending time with her children.


Tammy is a Clinical Assistant in our Joliet and Plainfield offices. When she is not spending quality time with her two children, this hockey lover is most likely hanging out with friends and family.


Lea is a Clinical Assistant has been part of the AO team since 2015. She loves meeting new patients every day and seeing their smiles! In her spare time, Lea is busy playing with her cats, spending time with family and friends and visiting her twin sister in Denver.


Marlin is a Clinical Assistant and joined our team in 2016. She received her certification as a Dental Assistant from Everest College in 2011, and has been working in general dentistry and orthodontics since. Marlin loves working with her patients, especially when she sees their happy faces at the end of treatment. Her first language is Spanish, and when she’s not working on smiles, she enjoys jogging, kickboxing, dancing traveling.


A six-year veteran in the dental and orthodontic fields, Ashley joined the AO team in 2016 as a Clinical Assistant. Her favorite part of the job is seeing patients’ confidence transform from the time they start to the time they finish, and seeing how happy they are with their new smiles! Ashley enjoys sports, classic rock music, hanging out with friends and playing bingo . . . and her favorite food is lobster and crab legs!


Jessica is one of our Clinical Assistants and joined our team in 2017. At AO, she loves working as a team and interacting with the patients. When she’s not in the clinic, Jessica is a movie buff and enjoys going to summer country concerts.


Tiffany is a Clinical Assistant with experience in the oral surgery and orthodontic fields. She loves learning new things and building patient relationships. Outside of the clinic, she enjoys reading books, drawing, sewing and video games. Tiffany is also active in her church, and is a movie buff—especially black and white movies from the 30’s to 60’s. Her greatest loves are family, friends, dogs and everything Disney.


Angie joined the team in 2017, bringing nine years of orthodontic experience. As a Clinical Assistant, she loves working with her hands and seeing the amazing change in patients’ smiles and confidence. Her hobbies include yoga, traveling, learning to play the guitar, cooking, gardening, listening to live music and breathing fire. As a new home owner, Angie is busy with DIY improvement projects in her spare time.


Lorie is our Sterilization Technician. Her hobbies include observing wildlife, hiking and spending time with her family.


Lily joined our team in 2017 as our Records Coordinator. She loves working with patients face-to-face and seeing patients of all ages. In her spare time, Lily is a fan of the Chicago Blackhawks and Cubs, plus loves being outdoors rollerblading, hiking, kayaking, running, and spending time with friends and family.


Linda is known around our practice as the “lab goddess, ” but do not let that title fool you, as she has a wide spectrum of other talents as well. Not only does she consistently garden and supply us with a bounty of fried green tomatoes and a plethora of flowers, but she also adores sewing and decorating. In fact, many of our chairs were upholstered in a variety of wildly fun patterns by Linda; be sure to check them out! When she is not busy with planting and designing, she enjoys bumbling around her home with her husband, Marc, and their two cats, Priscilla and Cecelia.


Chris is behind the scenes as our Lab Technician, helping create many of our other orthodontic appliances. When he’s not in our lab, Chris serves as our Inventory Specialist, making sure we have all of our supplies. In his spare time, he is busy preparing to attend dental school, and enjoys hanging out with his family, working out, hunting and walking his dog, Nella.


Our finance team has a combined 46 years of experience in patient care, finance and insurance, both in the dental and orthodontic fields. The ladies of our finance team enjoy meeting new families and working with our patients to help them realize the smile of their dreams. When they are not in the office, they are busy playing golf, working out at the gym, reading, volunteering or spending time with their families.


Tracy originally joined Associated Orthodontists in 2012 as Financial Coordinator in our Frankfort location. She brings with her 16 years of administrative dental experience. At home, she gets her creative “fix” by decorating cakes, making greeting cards and scrapbooks. But mostly, she likes to spend every spare minute with her 2 teenage boys and husband of 23 years.


Kari is the Marketing Coordinator and has been with Associated Orthodontists since December 2004. She wears many hats around the office, including coordinating both internal and external marketing initiatives. Not only does she have the magic touch in marketing, but she is also a licensed massage therapist! So whenever the ladies at the office need a little TLC, the first person they look for is Kari. Besides having her hands full with massages and a career, she still manages to find time to be a full-time mother and wife as well.


Julie is our Director of Practice Development and joined the team in 2016. A patient of AO’s in the 1980s, she is excited bring her smile back! Julie oversees internal and external marketing efforts, patient and public relations and business development initiatives. Together with her husband (and four dogs), she loves spending time with her two children at hockey games, waterski competitions and hanging out at the lake.

What Sets Us Apart

An Orthodontic Practice Focused on Wellness, Satisfaction and Perfection

At Associated Orthodontists, we bring our patients the most beneficial, timely and affordable orthodontic treatment in northeastern Illinois. We want patients to have fun and feel relaxed in our offices, and we work hard to create welcoming spaces that are truly family-friendly. Our team makes personal connections with our patients, and because of that, we feel like we have extended family in our offices every single day. Your health and well-being are our utmost priority, and we are always open to feedback to improve your orthodontic care.

Excellent Orthodontic Care With the Comfort of Home

As soon as you arrive at our office, we want it to feel as comfortable as your own home. The cozy reception area has Wi-Fi, so you can easily use your smart phones and tablets while you wait. Get a drink from our beverage station and enjoy our quiet space for parents. Younger patients and their siblings will enjoy the fun games available in the reception area. The Associated Orthodontists team believes your orthodontic care should be pleasant and free of hassle. We understand your child’s smile is much more than aligned teeth, and we care about making your family’s experience the best it can be. Our orthodontists and support staff are happy to answer any questions you may have or to explain our treatments in detail. You are the most important part of your oral health, and we want to empower you to make your own decisions about your smile.

Cutting-Edge Orthodontics and Extraordinary Treatment

Drs. Michael Casey, David Cortopassi, Scott Soderquist and Patrick Jones are the backbone of the Associated Orthodontists team. They are thoroughly experienced orthodontists who are committed to bringing you the most innovative and effective orthodontic care available. We value your time, and we pride ourselves on creating a speedy yet comprehensive orthodontic experience. Our doctors also create the best smiles possible, while keeping your comfort in mind. We use state-of-the-art alignment techniques, including the revolutionary Damon® System braces and Invisalign® invisible braces. We also use the
i-Cat 3-D Imaging System. This award-winning system uses extremely low radiation and produces very high-resolution images in just seconds, so we can get a comprehensive picture of your oral health. This helps us understand the best orthodontic options for your individual alignment needs.

Rewarding Our Patients and Improving Our Community

We could not do the work we do without our amazing patients and the communities they live in. We want to thank you for allowing us to be a part of your life, and one way we can say thank you is with fun rewards. We love holding monthly contests to brighten our patients’ lives, and our patients have lots of fun earning tokens through our rewards program. We also sponsor community events and local sports teams to show our continued support to our neighbors and friends. You have relied on our team for your oral health, and we are continually brainstorming ways to show our gratitude. Since Associated Orthodontists was founded in 1969, giving back to our community has been an important part of our practice. We look forward to welcoming you as a part of our patient family. If you are interested in what we can do to improve and enhance your smile, call the most conveniently located office for you. We can set up a complimentary consultation for patients in Morris, Joliet, Frankfort, New Lenox, Plainfield or Bourbonnais. We know a great smile can change your life, and we are ready to show you how. We want to give you and your family the very best orthodontic care in Illinois.

Request Appointment