Accessibility View Close toolbar

Our Doctors

Patrick R. Hermanson, DDS

Dr. Patrick Hermanson has been in his dental practice here in Pierre since July, 1973. He grew up in Minnesota where he attended St. John’s University graduating with a Bachelor of Science in Biology. He then went to the University of Minnesota School of Dentistry receiving his dental degree in June of 1973.

Along with his full time practice in Pierre, Dr. Hermanson has contributed to the dental health of the people of South Dakota in several ways. He has served on the council of Dental Health for the State Health Department and spent 10 years as a member of the State Board of Dentistry. He has also served as a dental examiner for the Central Regional Dental Testing Service for the past 15 years.

Dr. Hermanson’s practice includes treatment in all phases of general dentistry. He is comfortable and experienced with treating children of all ages as well as adults of all ages.

Dr. Hermanson has also been an allied staff member of St. Mary’s hospital since 1973 and provides comprehensive dental care for both children and adults.

Brent A. Swenson, DDS

(coming soon)

Erick M. Rath, DDS, Ph D, PC

Erick Rath is a fifth generation native South Dakotan who obtained a B.S. degree from Creighton University in Omaha, Nebraska in 1985, and received his Dental degree from Creighton in 1989. He has been a Dentist-Scientist Fellow at the University of North Carolina in Chapel Hill from 1989-1997, receiving his Ph.D. degree in Neuroscience. A Certificate for completing four years of residency in Oral and Maxillofacial Surgery was earned during that time, as well. Dr. Rath has served as a Clinical Instructor in Oral and Maxillofacial Surgery at the University of North Carolina, and was an Asst. Professor and Attending Surgeon in the Department of Oral and Maxillofacial Surgery, and Oral Biology at The Ohio State University Medical Center and College of Dentistry in Columbus, Ohio from 1997 through 2001. Dr. Rath passed his national board exam for the American Assocation of Oral and Maxillofacial Surgeons in 2002.

Dr Rath has been an officer in the American Association of Oral and Maxillofacial Surgeons Clinical Interest Group on Neurological Disorders. Being active both clinically and scientifically, he has been funded at the national level for research in the diagnosis and management of nerve injuries in the mouth and face. He has given presentations throughout the United States and published numerous articles and chapters on this topic. While at The Ohio State University, Dr. Rath was Co-Director of the Dentofacial Deformity Program for the evaluation and treatment of skeletal abnormalities of the face. In addition, he served as a consultant and attending surgeon for the Level 1 maxillofacial trauma services provided by The Ohio State University Hospitals, and Children's Hospital of Columbus.

Dr. Rath is married and the father of three daughters.

Contact Us

Send Us An Email Today

Our Location

Find us on the map


Find Out When We Are Open


8:00 AM-5:00 PM


8:00 AM-5:00 PM


8:00 AM-5:00 PM


8:00 AM-5:00 PM


8:00 AM-1:00 pm