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Meet Our Team

At Dr. Lavin’s office, every member of our care team is committed to our patients’ comfort. And because we are such a small group, we are able to provide personal, one-on-one interactions with everyone who walks in our door. Learn more about what motivates us to provide the best care possible.

Dr. Lavin
AAE Specialist Member logo

Dr. Marshall Lavin grew up in Vermillion, SD, working in his parents’ drug store, the Davis Pharmacy, which has been in the family since 1907. After beginning undergraduate studies at USD, dentistry piqued Dr. Lavin’s interest when he had his wisdom teeth removed during his sophomore year of college–and the rest is history! Dr. Lavin went to dental school and completed his endodontic residency at the University of Nebraska Medical Center College of Dentistry. His wife, Angeline, obtained her MBA and Ph.D. in finance at the University of Nebraska-Lincoln while Marshall pursued his dental education. In 1998, they moved to Sioux Falls, where Dr. Lavin established his endodontic practice, and Angeline began teaching finance and investments in the Beacom School of Business at the University of South Dakota. After 17 years at USD, Angeline moved into private practice as a financial advisor in 2015. In his free time, Dr. Lavin enjoys golfing, reading, judging at debate tournaments and, most importantly, spending time with his daughters.

Dr. Marshall Lavin is currently the longest practicing endodontist in South Dakota.


  • University of Nebraska Medical Center College of Dentistry (Endodontic Residency)
  • University of Nebraska Medical Center College of Dentistry (Doctor of Dental Surgery)
  • University of South Dakota (undergraduate work in biology and chemistry)


  • American Association of Endodontists
  • American Dental Association
  • South Dakota Dental Association
  • University of Nebraska Alumni Association

Marcia grew up on a farm west of Tea, SD, where her mother and her brother’s family still reside. Marcia and her husband, James, traveled for 10 years during James’ military career and spent six of those years overseas. In 1992, James and Marcia returned to the Sioux Falls area to raise their children near their extended families. Marcia began working for Dr. Lavin as his dental assistant in 2004, and James currently works as a building designer for Reaves Building Systems. James and Marcia enjoy spending time with their daughter, NaTosha, her husband, Clark, and their three daughters who also live in Tea, and their son, Dustin, his wife, Tracee, and their two sons who live in Omaha. In addition to spending time with family and friends, Marcia enjoys church activities and reading, and she and James are avid Vikings fans!

You will enjoy Marcia’s quick smile and kind words as she helps you feel at ease during your procedure.


Ashley grew up in Vemillion, SD, working in her parents’ flower shop, Willson Florist, which her father originally purchased in 1959. After completing some undergraduate work at USD in 2003, she came to work for Dr. Lavin as the office receptionist. Ashley and her husband, Scott, live in Brandon with their two young sons who are active in all kinds of sports! Scott, who is an avid Hawkeyes fan, enjoys his work as a fireman for the City of Sioux Falls. Scott and Ashley try to avoid conversation about college football at home, since Ashley is an avid Husker fan! In her free time, Ashley enjoys walking, biking and watching her sons’ activities.

Ashley looks forward to helping you schedule an appointment with Dr. Lavin, and she will greet you with a smile when you arrive at the office for your appointment!