About Dr. Randy Sachau DDS in Spearfish SD

Our Spearfish Dental Practice

  • Our dental practice focuses on preventive and restorative general dentistry for the whole family.

  • We have a special interest in treating headache and neck pain related to muscle tension.

  • We have the latest in technology and methods to efficiently treat dental problems from the most simple to the complex.

  • Randy Sachau's years of experience give him a special understanding of the long term consequences of various treatment choices which aid in providing quality care for a lifetime.

Education and Accreditation

  • Graduated in the top 10% as a Doctor of Dental Surgery (DDS) from Loyola University of Chicago Dental in 1978 

  • Alumnus of the L.D. Pankey Institute and the University of Florida Facial Pain mini Residency program


  • Randy Sachau is currently a member of the South Dakota State Board of Dentistry since 2008 and continues to be involved with that board as an investigator with the responsibility of helping to assure that dentists and dental staff in South Dakota are competent and provide quality care. 

  • He was previously involved in leadership of the South Dakota Dental Association and on the national level, the American Dental Association.

Spearfish Native

  • Randy and his wife are both natives of Spearfish and began their practice in 1978. Spearfish has always been home to them and they believe there is no better place to live and raise their family.


  • Randy enjoys the outdoors, biking and shooting sports. He has been a pilot since age 16 and is building a home-built airplane.

Mission Statement

  • We help people keep their natural teeth for a lifetime with the least amount of restorative dental work possible.

Schedule a dentist appointment with Dr. Sachau!

Dr. Sachau’s Family

Dr. Sachau’s Family