Robert Rodriguez, DDS

Dr. Rob Rodriguez was born and raised in Cedar Rapids, IA. He attended Washington High School and graduated in 1989 from the University of Iowa College of Dentistry. After practicing in California for several years he returned home in 1994. Dr. Rob enjoys running, golf, traveling and spending time with his three children.

Shawn Ray, DDS


Dr. Shawn Ray was born and raised in Cedar Rapids. He attended Linn-Mar High School. After graduating from the University of Iowa College of Dentistry in 2002, he and his wife, Dr. Alison Ray, served as dentists in the Navy. Dr. Shawn Ray joined Premier Dental in 2006. He is a member of the American Dental Association and the Linn County Dental Society.

Dr. Shawn Ray is married and has two daughters. He enjoys working out, traveling, and cheering on the Hawkeyes.

Bailey Hammerberg, DDS


Dr. Bailey Hammerberg graduated from the University of Iowa Dental School in 2011 and is a 2001 Cedar Rapids Washington High School graduate. She is a member of the ADA and Linn County Dental Society.
Premier Dental was pleased to welcome Dr. Bailey as an associate in 2013. Prior to joining Premier Dental she was an associate with Dr. Glen Miska.

Dr. Bailey is married and has two handsome sons and a beautiful golden retriever. She enjoys golfing, swimming, working out, going to Iowa football games and spending time with friends and family. She loves working with children and doing cosmetic dentistry. Her mission is to calm fears and erase bad past experiences at the dentist.

Adrian Rehak, DDS


Dr. Rehak is a native of Cedar Rapids, Iowa. He earned his Doctor of Dental Surgery degree from the University of Iowa in 1977 after receiving his Bachelor of Science in Electrical Engineering from Iowa State University. He spent two years of postgraduate study in Biomedical Engineering, during which he developed an interest in dentistry.

Dr. Rehak is committed to lifelong training as a way to offer his patients the best dental care possible. He has advanced training in such areas as TMJ (jaw joint) function, orthodontics (using braces, functional appliances, and Invisalign), and Lumineers, the “no-pain, no-shot” veneers. Also included in his many hours of continuing education are Implant Restoration, Cosmetic Dentistry, Infection Control and the use of state-of-the-art dental materials. Dr. Rehak provides his patients with gentle dentistry that combines the harmony of function with beautiful esthetics.

Dr. Rehak has been featured in the Cedar Rapids Gazette on the subject of TMJ treatment and the Anterior Discluding Dental Appliance, which he designed and used in the 1980’s. He now uses the very popular NTI appliance which functions in the same way, but can be fitted in the office in just one visit without additional lab fees. (See the NTI at

Dr. Rehak is a member of the American Dental Association, the American Orthodontic Society, the American Association of Functional Orthodontists, the Academy of General Dentistry, the Iowa Dental Association, the University District Dental Society, and the Linn County Dental Society.

Dr. Rehak is active in the community as well, serving as a member of the Cedar Rapids Chamber of Commerce, St. Pius Church, the Xavier High School Booster Club and the Xavier High School Silver Club. He is very proud of his four wonderful children, Brad, Becki, Russ, and Michelle. When not in the office, you may find Dr. Rehak golfing, playing tennis, walking, bicycling, reading, or watching sports.

Our Staff

You will find that our knowledgeable team is very friendly and caring. After all, good dentistry is more than excellent clinical skills, and state of the art equipment. Great dental care is also about establishing lasting relationships and providing excellent customer service as well. Each staff member is CPR trained, and meets or exceeds the required continuing education. We practice strict infection control standards and take pride in our work.

Our hygienists include:

Our dental assistants include:

Our front office staff includes:

Our Director of Operations:

Our Office: