Meet Dr. Catherine Murphy

In Harmony Orthodontics Practice Philosophy In Harmony Orthodontics specializes in caring for children who need treatment for their crooked teeth or bad bites; however, our practice offers more than traditional orthodontics. Dr. Catherine Murphy takes a holistic, integrative, and interceptive approach to orthodontics which also focuses on the airway. “Dr. Cathy” Murphy helps her patients achieve harmony of the jaws, face muscles, tongue, and overall well being. Her philosophy is to treat the whole patient and deliver the individual solution that is a perfect fit for each individual. She corrects the bad bite by addressing the underlying cause in addition to straightening the smile. Her goals are to:
  • Help each patient reach his/her full smile and facial beauty potential.
  • Provide long-lasting results.
  • Address concerns as soon as possible.
  • Avoid extraction of permanent teeth.
  • Reduce total treatment time.
About Dr. Catherine Murphy
Native to Northwest IN, Dr. Catherine Murphy attended St. Thomas More and Munster High School. Dr. Murphy started working in orthodontics 25 years ago with her father, Dr. Thomas Kroczek. She attended Indiana University Bloomington (IUB) for her undergraduate degree. While studying abroad in Wollongong, Australia, she learned about an organization through IUB that helped teach HIV/AIDS awareness and education in Kenya, Africa. Following graduation, she spent a transformational summer in rural Kenya where there was no electricity and no running water. She saw straight teeth everywhere! Why do you think that was? Short answer: the diet was not industrialized!
While attending Indiana University School of Dentistry (IUSD), she had the opportunity to work alongside a notable faculty orthodontist. Additionally, Dr. Murphy served as a leader on many sealant clinics, providing free dental education to mothers and free sealants to their children in various women’s shelters.
Dr. Murphy graduated dental school excited to practice general dentistry. In addition to private practice, she worked as an adjunct faculty member at IUSD and on the Sealant Mobile, which provided free dental screenings and sealants to children in underserved communities throughout Indiana. Following orthodontic residency, Dr. Murphy returned to Northwest IN and ran the orthodontic department of a pediatric dental practice. In addition to private practice, she returned to teaching as an adjunct faculty member at the Indiana University Northwest Hygiene program for many years.
Dr. Murphy has taken hundreds of hours of continuing education. Her passion for learning grows with each course she attends, especially those with a holistic approach to orthodontic treatment. With each course, she began questioning many methods that were becoming so popular. When her son was born, the questions increased as she sought answers regarding his health and was not satisfied with the response. This led her to the airway-focused approach to dentistry and orthodontics.
Outside the office, Dr. Murphy resides in Schererville with her husband, Mat, and their son and daughter. She met her husband through a local running club and now, instead of marathons, they run after their preschooler! She enjoys reading, being outdoors, and the symphony, and admits that her guilty pleasure is watching HGTV! Her motto: A.S.K: Always Seeking Knowledge.


Indiana University Bloomington

Indiana University Indianapolis (IUSD) – dental and orthodontic residency

Orthotropics Mini Residency with Dr. Bill Hang

Associations and Memberships

American Dental Association (ADA) – Indiana Dental Association (IDA) – AIR participant – an IDA leadership program requiring application, recommendations, and approval – Drinks Destroy Teeth Committee of the IDA – American Association of Orthodontists (AAO) –
Northwest Indiana Dental Society (NIDS), board member, past president and delegate – Young Dentist Committee (YDC), board member North American Association of Facial Orthotropics – Indiana University Orthodontic Alumni Association (IUOAA), board member –
Apollonia Dental Society Study Club of Northwest Indiana, a Seattle Study Club Chicago Dental Society (CDS) – Connections Book Club – Beaux Arts Ball Committee – part of South Shore Arts, raising funds to support the every kid program –
Meet Dr. Catherine Murphy in person. Dr. Murphy loves to meet new patients and their families. She is passionate about listening to parent/patients’ concerns, answering their questions (especially the ones that have been brushed off by other health care providers), and helping achieve beautiful smiles AND improved health for everyone. Want to meet Dr. Murphy? She offers complimentary consultations for new patients. Additionally, Dr. Murphy loves meeting new people by providing presentations to a local offices or organizations about the impact of dental health on one’s overall health. Call 219.924.4031 or email: for an appointment or to set up a presentation.