Our Team


Dr. Greg Beernink

Dr. Beernink grew up on a farm near Sioux Center, Iowa, and graduated from Sioux Center High School. He attended Northwestern College in Orange City, Iowa, and received his undergraduate degree in Biology and Chemistry. After college graduation, Dr. Beernink taught high school for three years.

He then attended the University of Iowa College of Dentistry and Dental Clinics where he received his Doctor of Dental Surgery. He moved back to his hometown area following graduation and opened Beernink Dental Clinic in 1984. In January of 2001, Dr. Beernink built Orange City Dentistry’s current office building, located just north of the hospital.

When not practicing, you can find Dr. Beernink on the golf course or enjoying time with his family. Dr. Beernink lives in Orange City with his wife Connie.



Dr. Mark Scallon

Dr. Mark grew up on a farm outside Iowa Falls, Iowa, and graduated from Iowa Falls-Alden High School. He graduated Magna Cum Laude from Iowa State University with his Bachelor of Science in Kinesiology and Health. Dr. Mark received his dental education at the University of Iowa College of Dentistry and Dental Clinics and graduated with his Doctor of Dental Surgery in 2013. After graduation, Dr. Mark was excited to begin his career in Orange City, his wife’s hometown area.

Dr. Mark is a member of the American Dental AssociationIowa Dental Association, and the Sioux City Dental Society.

Outside of dentistry, Dr. Mark enjoys running, woodworking, being with family and friends, and either wakeboarding or skiing. He lives in Orange City with his wife, Jenon, and daughters, Caroline and Rory.