Meet the doctors

Dr. Aaron Williams

Dr. Aaron Williams combines advanced orthodontic training with the perspective of a parent who understands busy family schedules firsthand.

He earned his Doctor of Dental Surgery degree from the University of Iowa in 2010. He then completed full-time orthodontic specialty training and a master’s degree at the University of Colorado in 2013. He also holds a Master of Business Administration degree, giving him an additional foundation in leadership, organization, and building a patient-centered practice.

With more than a decade of orthodontic experience, Dr. Williams now leads Siouxland Orthodontics and is excited to continue the practice’s tradition of excellent orthodontic care. His goal is to build on the trusted care families have known for decades while continuing to improve treatment technology, communication, convenience, and the overall patient experience.

Dr. Williams and his wife, Laura, are raising five children and putting down roots in Siouxland. Away from the office, Dr. Williams tries to stay in shape by training for the occasional triathlon or joining a pickup game. He enjoys listening to podcasts and audiobooks, watching a good movie, and dabbling in new technology.

Why families choose Siouxland Orthodontics

Dr. Daniel Kaler

For many Siouxland families, Dr. Daniel Kaler represents continuity, familiarity, and a relationship that extends across generations.

A native of Sergeant Bluff, Dr. Kaler returned to Sioux City in 1990 and has cared for local orthodontic patients ever since. He earned his Bachelor of Science degree from the University of South Dakota, his Doctor of Dental Surgery degree from the University of Iowa, and his orthodontic specialty certification from Oregon Health Sciences University.

Dr. Kaler has served the profession as a member of the American Association of Orthodontists, American Dental Association, Iowa Dental Association, and Iowa Society of Orthodontists. He is also a past president of the Sioux City Dental Society.