our staff


Mike Suris attended Elkhart University and earned a degree in Dental Technology. While at Elkhart he met his wife Dorothy. After they were married they moved Indianapolis and then to Northwest Indiana and started the DPL in 1969. Mike oversees the daily operations in the lab.


Dorothy Suris joined her husband at DPL in 1982 as the office manager. She too is involved in the general business operations.


Michael Suris graduated from Southern Indiana University and returned to DPL where he worked throughout high school. He has worked to add new products, services and technologies to the lab. Michael has travelled extensively throughout the United States as an Advocate and Trainer for Sirona and Patterson Dental on the inLab, CEREC and CEREC Connect systems. He and his wife Tanja run the CADplus Advanced Training Center in Merrillville.


Tanja Suris joined Dental Professional labs in 1984 and is now the head of the removables department. Educated in Europe, she brings a broad base of skill and knowledge to not only the denture and partial denture departments, but to the ceramics department as well. Tanja and Michael have been married for 26 years and have two grown children. Together with Michael she also runs the CADplus Advanced Training Center .


Mary Koulinanos joined the DPL office staff in 1985 and is now the Office Manager. She has grown to know the dental industry well enough that she is adept at answering nearly all questions regarding anything from billing to scheduling, as well as general operations.


Don Steeb was the first employee hired by Mike and today is the head of our Implant Department. With his skill in crown and bridge, as well as implants, Don can handle any implant restoration.