Meet Our Staff
It’s a pleasure to serve your dental needs with our highly qualified and experienced staff.

Marcos A.
Senior Certified Lab Technician
Marcos has been a dental laboratory technician for over 30 years. He received his diploma from McCarrie Schools of Health Sciences and Technology in Philadelphia. After working in a private practice setting for years, he then worked with Dr. Schaefer at the University of Pennsylvania School of Dental Medicine. After that, Marcos joined Dr. Schaefer working at the Hospital of the University of Pennsylvania, where he was trained to be an integral member of the Maxillofacial Prosthetic team. He became an expert at fabricating intra-oral and extra-oral prostheses for head and neck cancer patients. When Dr. Schaefer relocated to Madison, she invited Marcos to continue to be a member of her team at Prosthodontics of Madison. Marcos is a master at creating custom fabricated crowns and dentures for our patients. Through continuing education, he stays up to date on state-of-the-art techniques, materials and technology. Marcos grew up in Puerto Rico but has really embraced Wisconsin. He enjoys living in the Midwest and whenever he has a chance, Marcos travels back to Puerto Rico to visit his family and friends.
Kristi D.
Office Manager
Kristi is a graduate of the University of Wisconsin – La Crosse and started her dental career as a Dental Assistant in 2003. She has worked in both Prosthodontics and Endodontics before starting her office management position with Prosthodontics of Madison. Kristi loves having the privilege of helping our patients, our staff, and has been an amazing part of our team for years. She values and takes pride in working for an office with such great teamwork and positivity. Outside of work, Kristi enjoys the time with her daughters, friends, and family, both in the Madison area and in Northern Wisconsin.
Mark M.
Registered Dental Hygienist
Mark has been a Registered Dental Hygienist practicing periodontic management since 1997. He has kept current on the latest dental technology relating to the practice of Dental Hygiene. Mark “loves working with all of the staff at Prosthodontics of Madison” and he really likes being a part of improving patients’ smiles. In his spare time, he enjoys collecting Hosta and showing his collection to friends and family. Mark says “remember you don’t have to floss all of your teeth; only the ones you want to keep!”.
Theresa C.
Front Office Coordinator
Theresa is a Madison native and attended Madison Area Technical College’s dental assisting program. Theresa joined the practice in 1986 as a dental assistant and moved to the front office in 1989. As a main contact person for patient interactions, Theresa’s friendly smile and attention to patient care are familiar traits that our patients have experienced for nearly three decades. When spending time with her husband, she enjoys exercising, listening to music and attending the UW Badgers basketball games.
Nicole S.
Front Office Coordinator
Nicole, also known as CoCo, is from the Wisconsin Northwoods. She grew up in Rhinelander but her family is native to Madison’s east side. With over 15 years of experience in customer service and healthcare, patient care is her top priory. Nicole strives to ensure patients have a superior overall dental experience, whether it’s answering insurance questions or scheduling their next appointment. In her free time, Nicole enjoys spending time with her husband, friends and family, exploring Wisconsin’s great outdoors, and cheering for all Wisconsin sports!
Briana B.
Dental Assistant
Briana, aka “Bri”, is a Madison native and has been a Dental Assistant since 2010. Her experience includes multiple dental specialties and Prosthodontics is one of her favorites. Prosthodontics of Madison is very excited to have Bri’s experience and bubbly personality added to our team! She is extremely passionate about dentistry and loves to share her passion and knowledge with patients. In the summertime, Bri loves to be on the water boating with her Fiancé and friends. She also loves snuggling up to her pet Doberman, Robbie.
Ashlyn K.
Dental Assistant
Ashlyn is originally from Milwaukee, Wisconsin but moved to the La Crosse area in 2017. She graduated from Western Technical College with honors in Dental Assisting in 2019. Ashlyn worked in Oral Surgery before joining us in 2021 and her implant and surgical experience is a great addition to our team. She is more than a joy to have as part of our “work family”. Besides being a Dental Assistant, Ashlyn enjoys cuddles from her two cats, attending live music events and occasionally throwing on the potter’s wheel.