Dental Staff

Mark S. George, DMD

Mark S. George, DMD, is a graduate of Tufts University and a 1979 graduate of Tufts School of Dental Medicine, where he earned the top award for clinical excellence in the senior class. After graduation he entered private practice with his dentist, Dr. Ralph Caccavo. He is a member of the American Dental Association, the Vermont State Dental Association, and local professional groups. Dr. George has particular interests in the exciting fields of cosmetic dentistry and implant dentistry. His hobbies include hiking, biking, fishing, and skiing. Dr. George has two married daughters and lives in Barre Town with his wife Bonnie.

William L. Koch, DDS

William L. Koch, DDS, graduated Cum Laude from Dartmouth College in three years, took a year off to help build his parents’ house, and then received his dental training at the University of Iowa. During his career he has taken over 1500 hours of continuing education, focusing on the restoration of severely debilitated mouths, periodontics, implants, and the treatment of dental-related facial pain. He is a Pankey Scholar and a former Teaching Assistant at the Pankey Institute. His areas of professional interest are porcelain veneers, dental implants, periodontal surgery, and the time-honored technique of cast gold restorations. He is member of the American Dental Association, the Academy of General Dentistry, and is a membership candidate in the Academy of Fixed Prosthodontics. A decent chef, and the father of two young adults, Dr. Koch spends his spare time singing and acting, flying, water skiing, and keeping reasonably fit. He is a Gideon and a volunteer with several local organizations.

Susan C. Jorgensen, RDH

Susan C. Jorgensen, RDH, grew up in Barre, graduating from Spaulding High School in 1984. Her skill set is unique, in that she is qualified both as a Dental Assistant and as a Dental Hygienist. She has been a faithful team member at George and Koch for over 22 years and is totally dedicated to her patients and their care. Outgoing and fun, her patients think of her as family. She enjoys ice-skating and spending time at her camp on Lake Elmore. Sue lives in Barre Town with her longtime boyfriend Gordie and their two dogs.

Jane L. Geider, RDH, dental hygenist

Jane L. Geider, RDH, entered dentistry in 1992 after graduating from the University of Vermont School of Dental Hygiene. She came to the George and Koch team directly out of school, and was one of the first hygienists in the state to receive the local anesthesia endorsement on her license. This skill greatly expands her ability to provide comfortable hygiene care to patients with sensitive tissues. She has served as President of the Vermont Dental Hygiene Association in 1996 and continues to be active in the VDHA. The mother of three grown daughters, she lives in Barre Town with her husband Ken and is active in St. Monica’s Church and the Catholic Daughters of America. She enjoys tennis, walking, and being “Meme” to her grandchildren.

Cara L. Somaini, RDH

Cara L. Somaini, RDH, graduated from the University of Vermont in 1991 and has more than 22 years of clinical experience working full time in her profession. She continues to enhance her proficiency by attending educational courses, and she holds a Local Anesthesia Endorsement on her license, allowing Cara to provide her patients with more options for comfort during visits. Throughout the years, Cara has worked in several areas of dentistry. For the past 14 years she has been working at George and Koch helping her patients chair side ensuring their needs are being met. She has always enjoyed her occupation, but it is the interaction with her patients and the dentists at George and Koch that makes her work so rewarding. Cara Lives in Barre Town with her fiancé, Terry La Valley, and together they enjoy boating on Lake Champlain, traveling, and spending time with their family. Cara has two sons, Benjamin and Daniel.

Holly E. Hoyt, RDH

Holly E. Hoyt, RDH, grew up in Barre and graduated from Spaulding High School in 1999. She then went on to the University of Vermont’s Dental Hygiene program, graduating in 2001. Holly enjoys meeting and getting to know her patients, and she loves working with young children. Holly is licensed to administer local anesthesia to her patients enabling her to make treatment more comfortable for patients who have sensitive teeth and gums. In her spare time, Holly enjoys baking, reading, and spending time with her husband Derrick and their two sons, Brady and Ethan.

Nancy A. Dessureau, RDH

Nancy A. Dessureau, RDH, graduated from the University of Vermont School of Dental Hygiene in 1988 and has been a team member at George & Koch for over 25 years. (She has never missed a day of work due to illness!) She is certified to provide local anesthesia to patients with sensitive teeth or soft tissues so as to enhance their comfort during cleanings and periodontal procedures. Chances are if your children are in need of sealants, Nancy will be the professional placing them. She lives in Barre Town with her husband Mark, where they raised their son and daughter. She enjoys reading, snowshoeing, and Jazzercise. She looks forward to helping you keep your teeth in optimal health.

Deanna L. Willey, Dental Assistant

Deanna L. Willey, Dental Assistant, graduated from U-32 High School in 1988. She began working as a Dental Assistant in the office of Dr. Venmar in 1989 and subsequently worked for Dr. Richter in Hardwick. She has been with the team at George and Koch since July 2000, and she has been a vital part of the operations ever since. Deanna is our Jack-of-all-Trades, spending time chair side as needed, doing laboratory work, controlling supplies and inventory, and staffing the reception area during busy or short-handed times. Often she is the first clinical staff member that a new patient will see in our practice, and her reassuring personality has been a comfort to many a patient with dental pain. An outdoors enthusiast, Deanna lives in Marshfield with her two children and loyal pooch, Maple. She enjoys running, weightlifting, kayaking, and fishing, and looks forward to visiting with you.

Sheila V. Calevro, Receptionist

Sheila V. Calevro, Receptionist, was born and raised in Barre, graduating from Spaulding High School in 1963 and Becker Junior College in 1965. Upon graduating she worked in the medical office of Dr. William Shea for two years, then went on to work at Central Vermont Hospital in the Medical Records, Radiology, and Laboratory departments. She began working for our founder, Dr. Ralph M. Caccavo in 1981 and has been with the practice since then. In fact, Sheila has been at George and Koch longer than Dr. Koch, and almost as long as Dr. George! She and her late husband Mike have two adult daughters and several pets. She enjoys walking, snowshoeing, and spending her summers at the family cottage on Joe’s Pond.

Marcia Hall, Receptionist

Marcy is a graduate of the Champlain College Dental Assisting Program and has worked for over 18 years as a Certified Dental Assistant. She joined the team at George & Koch Dental Associates in 2017 as a Front Office Receptionist alongside Sheila. Marcy lives in Corinth with her husband, Mark and their golden retriever, Rusty.

Janet Smith, Dental Assistant 

Janet grew up in Williamstown, VT and graduated from Websterville Baptist School in 1995. She has been a dental assistant for the past three years and enjoys helping patients overcome their fears of the dentist. Janet lives in Barre with her husband, Phil and their five children. In her spare time, she enjoys skiing, kayaking, and spending time with her family.