Meet Our Doctors

Dr. David W. Engen

Dr. David WDavid (Formal - 2014). Engen, DDS, MSD is one of only FIVE board certified periodontists in the inland northwest. He received his Bachelor of Science degree in Neurobiology from Purdue University and his Master of Science degree in Physiology and Biophysics from Indiana University prior to earning his Doctor of Dental Surgery degree at Indiana University School of Dentistry. He received specialty training in both Period
ontics and Orthodontics, making him one of a handful of specialists in the country to hold both specialties. He received the Master of Science in Dentistry degree along with his specialty credentials.

Dr. Engen has served as a clinical instructor in both the Department of Periodontics and Department of Orthodontics at Indiana University. Dr. Engen is an active member in the American Academy of Periodontology, American Association of Orthodontics, Washington State Society of Orthodontics, American Dental Association, Washington State Dental Association, the Spokane District 181 - CopyDental Society, and is the director of the Spokane Study Club. Dr. Engen is a co-founder of the Inland Northwest Dental Hygiene Study Club which holds the title for the largest dental hygiene study club in the nation. Dr. Engen has served in leadership positions including the Continuing Education committee, the Executive Council, Secretary-Treasurer, and President of the Spokane District Dental Society.

Dr. Engen is the husband to Michelle Engen since 1994, and is the proud father of Kaitlyn (1997), Daniel (2000), and Carolyn (2003). He likes to water ski, scuba dive, play games/sports with his kids and travel with his lovely wife.


Dr. Rudolf G. Hahn

Dr. RudolRolf Hahn (Formal - 2014)f G. Hahn, DMD, MS is one of only FIVE board certified periodontists in the inland northwest, hails originally from London, England. Dr. Rudolf “Rolf” Hahn started his dental career at Guys Hospital, London in 1972. After graduating he worked in general dental practice in England and later in Germany. He also received his doctorate in prosthodontics at the University of Cologne, Germany, where he then also served as assistant professor of prosthodontics from 1980 to 1982. Dr. Hahn came to the U.S. to complete his specialty training in Periodontics at Loma Linda University in California. He stayed on as a faculty member in the school of dentistry in addition to his private practice. During the last five years of his stay at Loma Linda University, he served as Chairman of the Department of Periodontics. Dr. Hahn recently became boarRolf-Tessd certified in Periodontics making ours the only office in the Inland Northwest with two board certified Periodontists. Dr. Hahn has his Diplomate Status with the American Board of Periodontology. He also retains membership with the American Academy of Periodontology, the American Dental Association, Washington State Dental Association, Spokane District Dental Society, Academy of Osseointegration as well as the Spokane Study Club.

Dr. Hahn met his loving wife Tess in 1985 while backpacking in China. They chose to leave the hectic urban environment and found their home here in the Inland Northwest. They enjoy hiking and horseback riding in the forest, as well as fly fishing in the mountain creeks. Dr. Hahn’s other passions in life include restoring, sailing and racing vintage sail boats.




Pam L. (Periodontal patient)
Jun 29, 2014


Due to the severity of my dental needs, my regular dentist referred me to Dr. Engen’s office. Being referred to a periodontal specialist is not something I would wish upon anyone, and it was difficult going to another dentist. However, from the minute I entered their office I was greeted by professional, friendly staff members who acknowledged me with a warm smile and a pleasant, cheerful welcome. The doctors and hygienists demonstrated a high level of expertise and technical competency by effectively communicating the options available to address my dental needs. Each and every staff member I encountered, from the receptionist, to the doctors are extremely dedicated to creating a long term relationship with each one of their patients, including taking the time to educate each patient about oral hygiene. The staff at your office works harmoniously, cooperatively and effectively as a team to make your time with them as productive as possible. I would highly recommend this office to anyone seeking resolution to any dental issues and be assured you will be pleasantly surprised with your time with them.

Lyle B. (Periodontal patient)
Jun 29, 2014


State of the art care! I like the “get it right” attitude. After eight years I have not had one negative experience.