Denise Sieg, RDH/RDHBS – Dental Hygienist
Denise Sieg RDH/RDHBS: Dental Hygienist
Denise was born and raised in Sonoma County. She is trained in both dental assisting and dental hygiene. She earned her Registered Dental Assisting certificate from Santa Rosa Junior College in 1992. In 2002, she completed her Associate of Science Degree in Dental Hygiene. Later, she earned her Bachelor of Science Degree from Minnesota State University.
She has worked as both a dental hygienist and a dental assistant in several local offices. In addition, she taught for 10 years in the Dental Hygiene Program at Santa Rosa Junior College, helping to mentor new hygienists.
Denise is an active member of the California Dental Hygiene Association and the California Dental Hygiene Educators Association. She also keeps up with the latest advances in dentistry through continuing education.
Outside of work, Denise enjoys camping, photography, gardening, and yoga. She lives in Sonoma County with her husband, Shelby, and their children, Alexander and Abigail.
Karen McCord: RDH, Dental Hygienist
Karen McCord, RDH
Karen is a California native. She grew up in Sebastopol after spending her early years in San Francisco. She began her dental career in 1982 as a dental assistant in Occidental. She worked for Dr. McNeal, a mentor who inspired her to become a hygienist.
Karen earned her dental hygiene license in 1993 and returned to Sonoma County to start her career. She is known for her caring nature and her open communication style. She is an active member of the American Dental Hygienist Association and the Redwood Dental Hygiene Society. In addition, she volunteers at community dental events, including free dental days and orthodontic programs for adults and children.
When she is not caring for patients, Karen enjoys hiking, kayaking, and fly fishing. She also likes cooking, reading, and gardening. She lives in Santa Rosa with her two rescue cats and an English bulldog.
Melissa Tanda: RDH, Dental Hygienist
Melissa Tanda, RDH
Melissa brings both passion and skill to our dental hygiene team. She earned her B.S. in Kinesiology from Long Beach State University. She later completed her A.S. in Dental Hygiene at Sacramento City College.
Her dedication to improving oral health and promoting overall wellness shows in the care she provides. Originally from Sacramento, Melissa moved to Lake County in 2022 to support her husband’s career in the wine industry.
Outside of work, Melissa enjoys cooking, working out, hiking, camping, and listening to music. Her knowledge, enthusiasm, and commitment to her patients make her a valued part of our team.
Cathy Alviso: RDA Chair-side Assistant
Cathy Alviso: RDA Chair-Side Assistant
Cathy’s warm smile and sunny personality put patients at ease. She has extensive experience in both general dentistry and periodontics.
She earned her Associate’s Degree in Science from Santa Rosa Junior College. She also completed her dental assisting training there and received her RDA license.
Cathy was raised in Rohnert Park and has lived in Sonoma County all her life. She now lives in Santa Rosa with her husband, Rudy, and has two grown children. In 2022, she was thrilled to welcome her first grandchild. Beyond family time, she enjoys golfing, walking, biking, gardening, cooking, and visiting relatives in Butte County.
Suzanne Sciucchetti: Back Office
Suzanne Sciucchetti: Back Office & Chair-side Assistant
Suzanne was born and raised in Healdsburg and began her dental career in 1979 as an assistant with Dr. Tom Conklin (retired). In 1986, she transitioned to a front office role with Dr. Clint Weaver in Santa Rosa. She joined Dr. Wilburn’s team in 2006, and today she works in the back office and occasionally assists chairside.
She lives in Cloverdale with her long-time companion, Randy, and is the proud mother of two grown sons and one grandchild. In her spare time, Suzanne enjoys cooking, reading, and gardening. Most of all, she treasures time spent with her grandson, Vinny.
Patients appreciate her quick smile, caring nature, and willingness to go the extra mile to meet their needs.
Nicole Bernardi: Front Office
Nicole is the friendly, welcoming face who greets patients at our front desk. She brings bright energy, a positive attitude, and a dedication to ensuring each visit is smooth and stress-free. With a background in pediatrics, she connects naturally with patients of all ages.
A Rhonert Park and Petaluma native, Nicole is proud to serve her local community. She thrives in the fast-paced front desk environment, skillfully blending organization, attention to detail, and friendly conversation.
Outside of work, Nicole enjoys spending time with her husband, Greg (one of San Francisco’s finest), their energetic two-year-old son, Cam, and their two dogs, Purdy and Rhea.
