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"Quality Dentistry, Affordable Service, Compassionate Care."

Our Doctors


Dr. David Davidson

After earning his B.A. from Morningside College and his Doctor of Dental Surgery degree from the University of Iowa, Dr. Davidson has practiced family dentistry in the Des Moines area for more than 40 years. In November of 2019, Dr. Davidson retired from active practice. He continues ownership of Davidson Family Dentistry with his son Dr. Michael Davidson.

Dr. Davidson’s memberships include the American Dental Association, the Iowa Dental Association (past president), the Des Moines District Dental Society (past president), and the Academy of Family Dentistry. He serves as a fellow in the Academy of General Dentistry, the American College of Dentists, and the International College of Dentists.

Dr. Davidson has been active in the Iowa Dental Association’s Mission of Mercy (past board president) and has traveled to numerous countries on dental healthcare ministry trips. He enjoys traveling (more than 75 countries), collecting historical artifacts, singing, art, photography and jigsaw puzzles.

His professional motto of “quality dentistry, affordable service and compassionate care” has been the foundation of the practice since the very beginning.

He and his wife, Diane, an attorney who is now Clinic Administrator at Davidson Family Dentistry, have been married for over 45 years. They have three children, Dr. Philip Davidson, a high school teacher in Racine, Wisconsin, Dr. Michael Davidson, a dentist at Davidson Family Dentistry and Elizabeth Miller, an owner, with her husband, of ALD Publishing in Cedar Falls, Iowa.

Dr. Davidson and Diane have five grandchildren. Liam (2012), Natalie (2014), Alistair (2015), Charles (2017), and Michael (2020).



Dr. Michael Davidson

Dr. Michael Davidson received his undergraduate degree from Iowa State University and his Doctor of Dental Surgery degree from the University of Iowa.

Dr. Davidson was a previous member of the Iowa Dental Board. The Iowa Dental Board is the governing body for making rules related to dentistry and overseeing disciplinary action of dentists, dental hygienists, and dental assistants. On the board Dr. Davidson also did examination of dental students to assess competency before entering the profession.

Dr. Davidson took additional training in sedation dentistry from Oregon State University. He was chair of the Anesthesia Credentialing Committee that advises the dental board on sedation issues. Moderate sedation compliments the standard offering of nitrous oxide to his patients.

Implant dentistry has been a focus for Dr. Davidson. He has taken a number of continuing education classes as well as the longest continuing education class offered in implant dentistry. He does all stages of implants from single tooth replacement to full mouth restorations with implants.

Dr. Davidson has also expanded his training to include sleep apnea.

Memberships include the American Academy of Implant Dentistry, American Dental Association of Anesthesiology, American Dental Association, and the Des Moines District Dental Society (past president) and previous board member on the Iowa Dental Board. Dr. Davidson is active in volunteer dentistry at the Iowa Mission of Mercy.

Dr. Michael Davidson and his wife, Dr. Beth Davidson, a Pediatrician with Mercy Medical Center in Des Moines are parents to Liam (2012), and daughter, Natalie (2014). Dr. Davidson enjoys traveling, rock climbing, skiing, reading, playing board games and is active at Lutheran Church of Hope.

At age 4, Dr. Davidson announced that he wanted to be a dentist like his father and he has not been disappointed with that decision made at an early age. Dr. Davidson especially likes the family aspect of the practice; seeing the whole family from the elderly to young children and the variety of dental needs at every age. Many patients comment that if they close their eyes, they are not sure which Dr. Davidson is treating them. Both offer the same blend of great professional care combined with wit and friendliness.



Dr. Justine Stemper

Dr. Justine Stemper received her bachelor’s degree from Iowa State University and her Doctor of Dental Surgery from the University of Iowa. Dr. Stemper’s interest in public health led her to travel to Mexico and India to work on public health projects. She received distinction in dental public health as well as awards for practice management and treatment planning. Dr. Stemper received the New Dentist of the Year award in 2017 given by the Iowa Dental Association for an outstanding dentist who has been in practice for less than 10 years.

Memberships include the American Dental Association, the Iowa Dental Association, and the American Academy of General Dentistry.

Dr. Stemper and her husband Matt have two young children to keep them busy. In addition to family time, Dr. Stemper enjoys traveling, cycling, reading, watching ISU games and is a self-proclaimed water sports enthusiast, spending warmer months slaloming, swimming, and kayaking.  Dr. Stemper has also competed in an Ironman competition.

Dr. Stemper’s patients rarely see her without a smile, and she particularly likes to improve her patient’s esthetics.


Dr. Alyson Siegrist

Dr. Alyson Baier

Dr. Alyson Baier received her Bachelor’s Degree from the University of Minnesota-Twin Cities and her Doctor of Dental Surgery from the University of Iowa.

Memberships include the American Dental Association, the Iowa Dental Association, and the Des Moines District Dental Society.

Dr. Baier, and her husband, Andrew, welcomed their first baby in 2019. In addition to spending time with family, Dr. Baier enjoys running and completed her first marathon in the Fall of 2018.

Dr. Baier especially enjoys esthetic dentistry and is committed to the comfort and needs of her patients, creating the best experience possible.


Dr. Cameron Clause

Dr. Cameron Clause received his Bachelor of Arts in Chemistry from Gustavus Adolphus College in Saint Peter, MN and his Doctor of Dental Surgery from the University of Iowa College of Dentistry.

Dr. Clause is a Minnesota native growing up in a dental family; both his father and brother practice dentistry in Mankato, MN.

After practicing dentistry in Sioux Falls SD, Dr. Clause has made the move to the Des Moines area to join Davidson Family Dentistry.  He enjoys all areas of dentistry and has a special interest in endodontics and oral surgery. Dr. Clause is a member of the American Dental Association and the Iowa Dental Association.

He has been very involved in community activities including Mission of Mercy, both in Minnesota and Iowa, Habitat for Humanity, Feed My Starving Children, and Ghosts of Christmas, an organization that delivers food and care packages to families in need during the Christmas season in Sioux Falls, SD.

Outside of practicing dentistry Dr. Clause engages in physical activities and was an avid track and field athlete in college.  Dr. Clause recently joined a community hockey league, and already loves it.   He also enjoys spending time with his family, going to the family cabin in northern Minnesota, playing golf, and visiting new places.


Dr. Christina Mulcahy

Dr. Christina Mulcahy attended Marquette University in Milwaukee, WI for her undergraduate studies. Following in her father and uncle’s footsteps she attended University of Iowa College of Dentistry.  After graduating dental school she moved to Dallas, TX with her husband where she practiced for five years before moving back to Des Moines to be closer to family.

Her memberships include the American Dental Association, the Iowa Dental Association, and the Des Moines District Dental Society.

Dr. Mulcahy and her husband, Matt, welcomed their first child, Carter in 2017 and second, Henry in 2019. With two busy boys, she enjoys spending time outdoors with her family, cooking, home projects, and working out.  Dr. Mulcahy and her husband love traveling and look forward to planning their next adventure.

Dr. Mulcahy treats all patients as family, giving them the best options and explaining all treatment needs. She enjoys all facets of dentistry and helping her patients create and maintain their beautiful smiles.