Kokomo Team

Dr. John Ladd – CEO & Dentist

Dr. John was born at St. Joe Hospital and raised in Miami County, IN. John enjoys reading, fishing, & going to the gym. He is married to his wife Tisa who is also a dentist. Together they have four children, two sons and two daughters. What Dr. John loves most about dentistry is visiting with the patients and seeing a beautiful end result. He believes that everyone is unique and deserves the best care he can provide. Dr. John is a member of the IDA and the ADA. He attended IU Bloomington & IUK before graduating from the Indiana University School of Dentistry.



Dr. Jason Au- Yeung – Periodontist

Dr. Jason was born and raised in Toronto, Canada. Jason and his wife Dr. Kim (a dentist here at Ladd Dental Group) moved to Indiana several years ago and have two daughters and one son. They love the outdoors, especially snowboarding! Since moving to Indiana, they also enjoy exploring all Indiana has to offer. Dr. Jason received his bachelor’s degree from Queen’s University in Canada. He attended dental school at The University of Detroit Mercy School of Dentistry. He did his perio specialty residency training at Indiana University School of Dentistry with his Masters of Science research focusing on dental implant surface technology. Dr. Jason is a member of the Indiana Dental Association, American Dental Association, American Academy of Periodontology, Indiana Society of Periodontists, Midwest Society of Periodontists, Implant Restorative Study Club, and he is a board certified Diplomate of the American Board of Periodontology. Jason enjoys learning about nutrition and finding ways to incorporate healthy options into his family’s meals. He is a self-trained home chef and he loves to learn new culinary skills and make healthy and delicious food. When it comes to dentistry Dr. Jason loves being able to help his patients look and feel good about themselves and to be healthy. He likes educating them about oral and overall health, and how he can help them to achieve their goals. When Dr. Jason has a patient in his chair, they are his number one priority and he strives to truly listen and resolve their dental issues. He hopes to achieve a relaxed experience for his patients by providing them with sedation options such as IV sedation so that their experience is as anxiety free as possible.

Dr. Carmen Paez – Prosthodontist

Dr. Carmen received her dental degree form Indiana University School of Dentistry. She pursued a graduate degree in Prosthodontics. She graduated with a Master in Science of Dentistry, specializing in Prosthodontics and Dental Materials. At that time, she also became a full-time faculty member at the Indiana University School of Dentistry for the undergraduate and graduate prosthodontic program. Dr. Carmen obtained her Board Certification in 2005. Dr. Carmen is dedicated to providing the very best options to meet her patients’ dental needs. In order to be proactive in the care of her patients, she has continued to expand her knowledge of dentistry in the areas of: Invisalign, laser dentistry, cosmetic dentistry, surgery, and endodontics. She and her team are totally committed to helping patients maintain a beautiful,
healthy smile through innovative and caring dentistry. Dr. Carmen is or has been a member of the American College of Prosthodontics, the American Academy of Fixed Prosthodontics, the American Board of Prosthodontics, and the American Academy of Cosmetic Dentists. She is married to Vince, has one young daughter, and has been a proud resident of Indiana for over 15 years. In addition to making your smile beautiful, Dr. Carmen enjoys spending time with family and friends and traveling overseas with her husband and daughter to visit relatives.


 Dr. Harold Smith – Dentist

Dr. Harold graduated from the University of Pennsylvania School of Medicine and completed his residency at the Keesler Medical Center. He is a member of the Academy of General Dentistry, National Dental Association, and the International Congress of Oral Implantologists..

Dr. Andrew Schemehorn – Dentist

Dr. Andrew graduated from the Indiana University School of Dentistry and is a member of the Indiana Dental Association, the American Dental Association and the Indiana District Dental Society.

Dr. Walter Carbajal – Dentist

Dr. Walter graduated from San Martin de Porres University in Lima, Peru and from University of Illinois at Chicago to receive his Doctorate in Dental Surgery. He is a member of the Indiana Dental Association, American Dental Association, and the Academy of General Dentistry.

Dr. Young Eun Kim – Dentist

Dr. Kim graduated with a degree in Health Sciences from Boise State University. She received her DDS from Indiana University School of Dentistry. She was born and raised in eastern Idaho. She is married to Dr. Jason, a Periodontist at Ladd Dental Group and they have two daughters and one son.





Dr. Dustin Neuman – Dentist

Dr. Dustin was born and raised in Michigan City, IN. Dustin and his wife, Liz have been married for 12 years and they have two daughters. Spending time with his family is his favorite past time! They raise rabbits and chickens on their hobby farm. His two daughters participate in 4H where they show rabbits. His family likes watching cooking and food competition shows together, as well as, going to the movies. Dr. Dustin also enjoys fishing and boating. Dustin received his bachelor’s from Indiana University Northwest before graduating from the Indiana University School of Dentistry. He is a member of the ADA and the IDA. As far as dentistry is concerned Dr. Dustin has a passion for helping his patients! He wants to get them out of pain, while getting them over their fears and get their smile back! His patients are the reason he practices dentistry. He treats each patient as they are a member of his family.

Dr. Rachel Koh – Dentist

Dr. Rachel was born and raised in Seoul, South Korea. For the last eleven years she has lived here in Indiana, with her husband Brandon, where they enjoy golf, skiing and hiking. Dr. Koh earned a Master’s degree in Physiology at Indiana University, and received her DDS degree from the Indiana University School of Dentistry. Rachel is a member of the American Dental Association, the Indiana Dental Association and the Academy of General Dentistry. She loves the lifestyle of a dentist, including the pleasure in helping patients achieve great smiles. It’s special gratification that comes from improving people’s daily lives, by reducing their anxiety and boosting their confidence, that is a perfect fit for her.