Meet Our Staff

Sandy Rolfes,
Administrative Coordinator

Trina Lyn Bollin,

Office Manager

With over 10 years of customer service experience and a radiology degree from St. Luke’s College, Trina Bollin is well suited for her new position as LeMars Dental Center’s Office Manager. Trina works with patients-start to finish-at the clinic and assures every aspect of their care is addressed and all their questions are answered.


Trina lives in LeMars with her daughter Ashlyn. She keeps busy being a mother, staying active in the community and spending time with family and friends.



Sandy Rolfes, in her role as Administrative Coordinator, makes sure each patient receives comprehensive, complete care from the doctors and staff at the LeMars Dental Center. Friendly and knowledgeable, Sandy schedules appointments, assists with new patient arrivals and helps patients complete any paperwork with a smile.


An avid reader, Sandy can sometimes be convinced to put the book down and join her husband riding on the golf cart. She’s a skilled scrap booker, and shares this passion volunteering with residents at the local hospital and assisted living facility.


Donna Poulsen,

Patient Concierge

Tanya Gaswint

Tanya Gaswint,

Registered Dental Hygienist

Donna Poulsen joined the LeMars Dental Center at the end of 2015, and will be assuming the role of Patient Concierge. From the first call as a new patient to the final treatment appointment, Donna makes patients feel at ease and will help complete paperwork and answer questions. Donna's goal is to make every patient’s visit comfortable and stress-free.


Outside of the office, Donna enjoys time with her husband and family.  When not in the office, she loves to spend time outdoors, camping with family, friends and # grandchildren.

Tanya Gaswint holds an Associate of Arts degree in Dental Hygiene from the University of South Dakota and has worked for Dr. Rhea-Bohnenkamp since 1998. Tanya enjoys the relationships she has formed with her patients throughout the years.


Tanya’s attention to detail ensures excellent care in the hygiene chair. She believes continuing education is key to outstanding patient care. Keeping up with new technology and the latest research helps Tanya ensure we are treating the whole patient, not just their teeth.


Tanya lives in Akron with her family. She enjoys staying fit and takes many walks with her daughter and their dog.

Denae Plueger,

Registered Dental Hygienist

Denae Plueger

Amanda Beitelspacher,
Registered Dental Hygienist

Amanda Beitelspacher

Amanda Beitelspacher graduated in 2002 from the University of South Dakota with an Associate of Science degree. Upon graduation, she immediately joined Dr. Bjorge and transitioned to the LeMars Dental Center team in 2008 when Dr. Rhea-Bohnenkamp purchased the practice.


Amanda enjoys spending time with Troy, her husband, and their three children, Alaina, Carter and Hailey. Amanda believes one of the most important aspects of her career is helping others improve and maintain their oral health.


Denae Plueger began her career with LeMars Dental Center in July 2014 after earning her Bachelor’s of Science degree from the University of South Dakota in May of the same year. Her goal is to educate her patients not only about the health of their mouth, but how it correlates with the whole body as well, while making every appointment fun. Early, positive experiences in the dental chair encouraged her to pursue a career as a dental hygienist.


When not seeing patients at the LeMars Dental Center, Denae, enjoys spending free time with her wonderful husband, Jerrod, in her garden, and taking their dog, Ace, for a walk.


Elaine Ross

Elaine Ross,

Registered Dental Assistant

Expanded Functions Assistant

Elaine Ross graduated from Western Iowa Tech Community College with a degree in Dental Assisting in 2007. Before joining the LeMars Dental Center in 2012, she spent several years assisting at other clinics in the area.


Three daughters, Miranda, Victoria and Natalie, keep her and her husband Zach very busy, but when she’s ready to relax, you can often find her curled up with a good book.

Kathy Johnson

Kathy Johnson,

Registered Dental Assistant

Expanded Functions Assistant

Kathy Johnson is an original member of the LeMars Dental Center team; she joined Dr. Rhea-Bohnenkamp when she opened her first practice in 1991. Kathy graduated from Western Iowa Tech and is a Registered Dental Assistant. Recently, Kathy received her expanded functions certification, which allows her to assist Dr. Rhea in a greater capacity.


The senior member, Kathy is a great resource for all other members of the LeMars Dental Center team. She holds a wealth of knowledge and is always willing to share when needed with not only her coworkers, but also the patients who she’s been seeing for years.

Tori Meyer,

Registered Dental Assistant

Tori Meyer graduated from Western Iowa Tech Community College in 2013 and is a Registered Dental Assistant with an expanded functions certificate. She enjoys working with our patients and making their experience with the doctors and staff at the LeMars Dental Center a positive one.


Tori enjoys spending time with her husband, Brad, and their daughter, Raelynn, who is very excited for her new brother or sister at the beginning of 2016.

1311 Hawkeye Ave. SW | Le Mars, IA 51031  | 712.546.5183

Copyright © 2016 LeMars Dental Center, Inc. All rights reserved.