Meet Your Ripon Dentists & Dental Team


Christopher G. Johnson, DDS

Ripon Dentist Dr. JohnsonDr. Cris G. Johnson was born in Ripon, Wisconsin, attended Ripon High School as well as Ripon College. Cris then attended Marquette University Dental School in Milwaukee, Wisconsin. After graduation from Marquette he returned to Ripon and has been practicing dentistry in his home town for over 25 years.
Cris and his wife Barb have been married for more than 42 years. Also a Ripon College graduate, Barb presently works in the Chemistry Department. Dr. Johnson is also a Dawson Dentist graduate from The Dawson Academy. They have four adult children that also attended Ripon High school.

Cris is active both in community service and civic organizations as well as Our Lady of the Lake Catholic Church in Green Lake, Wisconsin.

In addition to his schooling at Marquette, Dr. Johnson has also trained with some of the worlds most prominent teachers of cosmetic, implant, orthodontic and complex restorative dentistry.

James Hamman, DDS

Ripon Dentist Dr. James HammanDr. Hamman and his wife Pamela, along with their three children, live in the Oshkosh area. Dr. Hamman has been a practicing dentist for over 19 years, completing his undergraduate studies at Creighton University in Omaha, Nebraska. Dr. Hamman is a graduate of Case Western Reserve University School of Dentistry in Cleveland Ohio.

Dr. Hamman brings with him 13 years of experience using the most technologically advanced dental CAD/CAM restorative system known as CEREC by Sirona.

Dr. Hamman enjoys all aspects of Dentistry. His areas of specialties range from IV sedation, oral surgery, implant placement, to simple restorations. He is a member of the American Dental Association, the Wisconsin Dental Association, as well as a member of the International Society of Computerized Dentistry.

Dr. Hamman believes in giving back to the community. He serves as the director of the St. Francis Community Free Clinic in Oshkosh, providing general dental care for the underserved population of patients in that area. In his free time, Dr. Hamman enjoys many hobbies including aviation, fishing and scuba diving.

The entire staff and Dr. Johnson promise to provide you with the highest quality and most comfortable dentistry available.

We continue to strive to provide the best possible care for all our patients, creating a lasting, healthy, attractive smile! We are proud to serve you and all your family members.

Frances Hamman, DDS, MSD

Ripon Dentist Dr. Frances HammanDr. Frances Hamman began her career in dentistry by earning her Doctor of Dental Surgery from Creighton University in 1991. Her passion for straightening smiles led her to continue on, earning her degree in orthodontics from Case Western Reserve University in Cleveland, Ohio in 1993. She has been a practicing orthodontist ever since.

Dr. Hamman’s interest in orthodontics began early -- she actually worked as a dental assistant in her father’s orthodontics practice all throughout high school, college, and dental school. In all, she’s got almost 30 years’ experience in the field. As she says, orthodontics isn’t just about creating a beautiful smile. It’s about helping patients enjoy teeth that function properly, too. When the teeth fit together like they should, the face has the proper proportion, and the simple acts of eating, speaking, and smiling are all easier… and more enjoyable, too.

In addition to her significant experience in orthodontics at home, Dr. Hamman had the honor of working for the U.S. Navy on active duty from 1997 to 2003. She was stationed in the United States Naval Academy, the Naval Hospital in Great Lakes, Illinois, and Yokosuka, Japan. She is proud to say she’s had the opportunity to treat smiles of all ages and with a range of orthodontic needs -- and she knows this experience has helped her become the successful orthodontist that she is today. For her exceptional work, she’s been recognized by Northern Virginia Magazine and the Washington Consumers Checkbook magazine as one of Washington’s Top Orthodontists.

To improve the alignment of patients’ smiles, Dr. Hamman first performs a clinical evaluation and uses advanced software to evaluate the patient’s teeth and unique bone structure. She partners with other dental professionals and surgeons as needed to help each patient achieve the very best results. Dr. Hamman also frequently engages in continuing education opportunities to stay up-to-date in the field of orthodontics.

Dr. Hamman has a full life outside of her work, too. She makes a point to balance life and orthodontics by traveling, learning new languages, and experiencing other cultures. She’s always active whether its art, photography, music, reading, water events, family activities, Dr Hamman enjoys just about everything the beauty of life has to offer.

Kurt Walejko, DDS

Ripon Dentist Dr. Kurt Walejko, DDSBIO COMING SOON

Our Dental Team

Alyssa - Treatment Coordinator

Dental Treatment Coordinator AlyssaAs our administrative team leader, Alyssa is a vital part of our staff. Besides being Dr. Johnson's right hand, she keeps the office running smoothly. What's more, she truly cares about helping others—that's why our patients love her. Prior to joining our team, she studied at Fox Valley Technical College. When she's not helping patients and making people laugh, she loves spending time with her husband and her children. She enjoys cooking, spending time outdoors, and going four-wheeling and dirt biking. She also loves music—you might even catch her lip syncing around the office.

Shannon - Registered Dental Hygienist

Dental Hygienist ShannonAs one of our dental hygienists, Shannon enjoys developing relationships with patients and helping them improve their oral health and wellbeing. She previously studied at the University of Wisconsin-Milwaukee and Madison Area Technical College. She is also married and has two children. In her free time, Shannon enjoys baking, swimming, and spending time with her family.

Erica - Registered Dental Hygienist

Erica Dental HygienistAs one of our dental hygienists, Erica helps us create beautiful, healthy smiles using some of today's best tools. She also has experience with local anesthesia and laser therapy for gum disease. Before joining our team, Erica completed her studies at the University of Wisconsin-Oshkosh and Fox Valley Technical College. She's married and has a dog. When she's not helping patients, she enjoys being outdoors, gardening, traveling, and cooking. Erica is also a Badgers fan and is trying to learn Spanish.

Rachel - Registered Dental Hygienist

As a dental hygienist, Rachel loves to educate her patients about their oral health. She attended Northeast Wisconsin Technical College for her dental hygiene degree and Lakeshore Technical College for her degree as a dental assistant. She is also certified in CPR, local anesthesia and 920 nm laser. Rachel and her husband have two dogs, and in her spare time she enjoys road biking, cooking, running, crafting and reading. Someday, she would like to go halibut fishing off the shores of Alaska.

Tricia - Registered Dental Hygienist

Ripon Dental Hygienist TriciaTricia is a dental hygienist with more than 20 years of experience in dentistry. Originally from Neenah, she attended Neenah High School and UW Oshkosh. She received her dental training at Fox Valley Technical Institute. She is certified in local anesthesia. Outside of work, Tricia spends quality time with her son and she likes running, biking, fitness, camping and traveling. She ran her first full marathon in 2014, the Fox Cities Marathon in Neenah.

Megan - Registered Dental Hygienist

Dental Hygienist Megan Megan is a local girl who grew up and attended school here in Ripon. She received her education for hygiene at the Fox Valley Technical College. During the warmer months, Megan likes to plant flowers, herbs and vegetables in her garden. She also enjoys spending time with her family and friends.

Morgan - Registered Dental Hygienist

Dental Hygienist Morgan Morgan originally born in raised Fond du Lac, WI attended Fox Valley Technical College for her dental education. As one of the Registered Dental Hygienists on our team she very much makes her objective to educate patients on the importance of their overall dental health in a comforting and friendly atmosphere. Morgan is quite crafty and likes to refinish furniture during her free time. She loves taking vacations and her dream vacation is to eventually travel around Europe.

Billie - Hygiene Assistant

Billie is a member of the front office team but is trained in many areas of the practice. She graduated from Ripon High School and is continuing her education at Fox Valley Technical College to become a dental hygienist! People are her passion and she loves working with our awesome patients and helping them with their every need. Outside of work Billie enjoys baking, running and spending time with her family and friends.

Trista - Dental Assistant

Dental Assistant TristaTrista has more than 25 years of experience in dentistry. As a dental assistant, she works side-by-side with our dentists every day as they help patients achieve better oral health and wellbeing. Before joining our team, she studied at Gateway Technical College. Trista is married and has two dogs. Her interests include kayaking, gardening, and turkey hunting. She also took piano lessons for 13 years.

Miranda - Dental Assistant

Dental Assistant MirandaMiranda loves helping people, which is something she gets to do every day as a dental assistant. Prior to joining our dedicated team, she studied at Fox Valley Technical College. Away from the office she enjoys basketball, fishing, hunting, and spending time with her husband and two daughters.

Molly – Dental Assistant

Dental Assistant MollyAs a dental assistant, Molly loves meeting new patients and helping them with their diverse dental needs. Every case provides a new opportunity to learn and grow as a dental assistant. Next to studying dental assisting, there’s been no greater chance to learn about exceptional care than her time at our Ripon dental office. In her spare time, Molly enjoys scrapbooking, cooking, walking her dog, and spending time with her nephews and her awesome boyfriend.

Jessie – Dental Assistant

Dental Assistant JessieJessie officially joined our practice in December 2015, but she has really been a member of the team since January of that year when she did her clinical rotations here while attending Fox Valley Technical College. She also attended UW Milwaukee. Jessie enjoys getting to know our patients and helping them become more confident with their smiles. Her hobbies include open water ice fishing, being outdoors, art projects, archery and spending time with family and friends. Jessie and her boyfriend have plans to restore his grandparents’ old house and make it their home.

Holly – Dental Assistant

As a dental assistant, Holly understands that cosmetic needs are important to our patients, as well as making sure they are comfortable for all their dental visits. She enjoys working chair-side with our Orthodontist as well as assisting Dr's. Johnson and Hamman. She received her degree in dental assisting from Fox Valley Technical College. In her spare time she loves football Sundays, shopping, and binge-watching the latest Netflix series.

Emily K – Dental Assistant

Ripon Dentist Dental Assistant Emily K Emily grew up in Mayville where she went to Mayville High School and then later attended Penn Foster Dental Assistant School. She now lives with her husband Grant, a dairy farmer, in Waupun, Wisconsin. Outside of the office Emily enjoys farming, riding horses, working on trucks, spending time with her pets and the occasional coon hunt!

Goldie - Front Office

Goldie joined the front desk team in July of 2016 and has been a dental assistant for more than 11 years and loves working with our fantastic patients to give them a great experience. She previously studied dental assisting at Fox Valley Technical College and has been married to her husband for over 10 years. Together they have three children. After hours, she loves being outdoors and spending time with her loved ones. She also enjoys walks, fishing, and bike riding.

Jenny - Front Office/Schedule Coordinator

Jenny has been with our practice for more than 15 years. As an account manager and schedule coordinator, she loves working with patients and making them feel welcome. She previously studied at Fox Valley Technical College and is CPR certified. When she's not helping patients, Jenny enjoys watching her two sons play sports. Her other interests include home renovations, decorating, traveling, and anything Disney.

Emily - Front Office

Working in our front office, Emily has noticed that our practice is all about our patients. She enjoys being able to make a difference every day. Originally from Ripon, Emily attended Ripon High School and Madison Area Technical College. She is a certified medical administrative specialist. Outside of work, she enjoys cooking, ice fishing, camping, movies and hanging out with her friends and family. You might not guess this, but for her 16th birthday, Emily went skydiving!

Amanda - Front Office

Amanda, new to the Front Desk Team, started off as a dental assistant at Silver Creek Dentistry. Other than providing comfort to our patients, Amanda strives to make each visit as pleasant and beneficial as possible. Outside of the office she enjoys landscaping, home remodeling, and trips with her husband and two children. She and her husband keep busy watching their children play sports and show horse.

Charissa - Front Office

Ripon Dentist Front Desk team Charissa

Charissa joined the Silver Creek Dentistry Front Desk Team with over 11 years in customer service and an additional 5+ years caring for the elderly. Charissa grew up in the Wautoma area but now lives in Berlin where she bought a home. After graduating high school, Charissa attended Fox Valley Technical college where she received her CNA degree. She has a lovely daughter who keeps her on her toes and outside the office Charissa enjoys spending time with family and friends as wells going shopping, traveling and watching movies.

Chelsey - Front Office

Ripon Dentist Front Desk team Chelsey Besides being a valued member of our front office team, Chelsey is a graduate of Ripon High School and is both CPR and AED certified. She loves assisting patients and making them welcome. Away from the office, Chelsey enjoys spending time with her friends and her son. She also loves being outdoors and staying organized.

Wendy - Insurance Coordinator

Wendy has been our insurance coordinator for over 25 years. She loves being part of a team that's so dedicated to offering patients exceptional service. In addition to serving at our office for many years, she's also studied at Moraine Park Technical College. Away from the office, she enjoys being outdoors and loves animals. She also enjoys riding horses.

Tanya - Insurance Coordinator

Tanya has more than 21 years of experience as an insurance coordinator with our office. For her, the highlight of each day is interacting with patients and making them smile. She previously earned a dental assisting degree at Fox Valley Technical College. When she's away from the office, she enjoys spending time with her kind, loving, and giving husband and her two amazing boys. She also loves shopping and cheering on the Badgers, Brewers, and Packers. In her spare time, she likes to bake treats.

Nancy - Marketing Director

Nancy has been a part of the Silver Creek Dentistry team for over 19 years. She loves interacting with our patients and team members alike. She previously earned a Bachelor of Science in psychology from the University of Wisconsin-River Falls, and she has a PHR certification in human resources. Nancy and her husband have been married for over 26 years and have two grown sons. She loves traveling with her family and friends, and she also enjoys four-wheeling and boating.