Meet The Team

At the core of our dental practice is a friendly team of professionals that are dedicated to your utmost comfort and optimal oral health. We view each patient as a unique individual, and tailor each treatment to your specific needs. As part of our commitment to providing close, personalized attention to every patient, we want to encourage patient communication. Please know that we are here to provide outstanding patient care, and that we value the trust you have placed in us.


Mary Tourtlotte, DDS


Dr. Mary Tourtlotte is a 2005 graduate of the University of the Pacific Arthur A. Dugoni, School of Dentistry. She was born and raised in the Central Valley, graduating from Oakdale High School before venturing off to college at UC Davis and San Jose State University on a tennis scholarship. Dr. Mary is a dental officer in the Unites States Naval Reserves, where she proudly dedicates one weekend every month and 2 weeks every year as a general dentist for our Marines and Navy Sailors. Dr. Mary is a member of the American Dental Association, California Dental Association, Stanislaus Dental Society, and the American Dental Implant Association. She has also completed a fellowship and associate fellowship with the American Dental Implant Association and the World Class Laser Institute. She loves practicing dentistry in the area where she grew up. She enjoys the time spent with her patients and getting to know them and their families.

Her favorite time away from her patients and team members is spent with her family. Dr. Mary is married with three children, which keep them very busy. She enjoys kickboxing, running, ski and snowboarding, and watching her kids grow and excel in life. Dr. Mary and her husband, Deonce, love adventurous family outings and they all might be seen at a Tough Mudder event or other local obstacle course races.

Katherine Kucera, DDS


Katherine Kucera, DDS FAGD, known as "Dr. Katie" to her friends and patients, has been practicing dentistry in the Central Valley since she graduated with honors from the University of the Pacific School of Dentistry in 1983. Dr. Katie was the first and only female dentist in the county. She is thrilled to now see so many women who have joined the profession and is honored to join Valley Esthetics Dental Group in Modesto.

Dr. Katie is dedicated to furthering her dental education and attended a Mini-residency in Esthetic Dentistry at UCLA. She has been a member of the International Academy of Laser Dentists, the ADA, CDA and the local Dentist Society, where she has served on the Peer Review Board for many years. She has served as a Board Examiner for the certification of Dental Assistants and has her Teaching Credential from the California State Community Colleges. She was awarded a Fellowship with the Academy of General Dentistry in 2009.

She has participated in countless "career day" events at local schools and over the years has perform thousands of dental screenings for elementary schools and Head Start programs all over the valley. She has been a member and an officer in Soroptimist International. Dr. Katie was named "Woman of Distinction in Healthcare" by Soroptimist International, as well as "Soroptimist of the Year" in 1999.

Dr. Katie sold her private practice in 2013. She loves volunteering in the undeserved areas of California and especially for International programs such as "1000 Smiles" in Jamaica.

For recreation, Dr. Katie enjoys riding her Selle Francais dressage horse, Hercules. She also enjoys traveling with her husband Charlie Menghetti and their Italian Greyhound, Enzo. 

Jonah Friedrich, DDS


Dr. Friedrich has always had a passion for helping others and it shows in his approach to care. Patients often describe Dr. Friedrich as a compassionate, personable and honest doctor. He takes time to get to know each patient and places emphasis on their experience. As a practitioner, Dr. Friedrich values his patients' relationships by maintaining open communication and creating an environment that empowers the patient. His patient-centered approach will help you feel comfortable in the dental office!


Dr. Friedrich is from Oakdale, California. He graduated from the University of Notre Dame where he earned his Bachelor of Science degree with a major in Science-Business. He is a graduate of University of The Pacific Arthur A. Dugoni School of Dentistry where he learned excellent, conservative dental care and the importance of prevention.

Dr. Friedrich is an active member of the American Dental Assocation, California Dental Association, and the American Academy of Cosmetic Dentistry. He is exceptionally driven in his career and strives to keep up with the latest in dental education and patient care.


In his free time, he enjoys playing basketballl and keeping up with his favorite team, the Golden State Warriors. He is an avid traveller and hopes to one day make it to Japan where he can enjoy his favorite food, sushi! Dr. Friedrich is happy to meet with you and looks forward to taking care of your cosmetic and general dental needs.


Office Manager

Hanneke brings 40 years of dental experience to our office and has been a member of our team for over 20 years. She was born in Holland and raised in the Bay Area. Hanneke says, “I love our office, I love our patients and I can’t imagine working anywhere else!” Hanneke loves spending time with her family, including her son, daughter, two granddaughters and many lifelong friends. She also loves to travel and has a bucket list of destinations she would like to visit.



Lori grew up in Modesto and started her career as a Registered Dental Assistant. She attended Modesto Junior College for the Dental Assisting Program and graduated with an A.S. degree. She has been in the dental field over 25 years, the last 12 in the front office. She worked 15 years with our own Dr. Katie Kucera before Dr. Kucera sold her private practice. She continued to work in the practice and then had an opportunity to work with Dr. Mary Tourtlotte and Dr. Katie Kucera once again. She lives with her family in Modesto and in her free time she enjoys spending time with her family, camping, bicycling and going to country music concerts.


Registered Dental Hygienist

Sierra began her dental career in 2001 as a dental assistant. She advanced her education in pursuit of dental hygiene at Chabot College in Hayward. Sierra has been a part of our team since 2015. She lives in Oakdale with her family. One of the reasons she enjoys being a hygienist is the ability to build relationships with patients, all the while improving their oral health. In her leisure time, she thrives on traveling with her family and home improvement projects.


Registered Dental Hygienist

Amanda grew up in Oakdale and graduated with honors in Dental Hygiene from Carrington College Sacramento in 2017.  She has been an RDA for the last 14 years, graduating from Galen College in 2005. She is married to her husband Ryan , and has two kids. She enjoys meeting new people and helping them enjoy their dental experience. In her free time she enjoys the San Francisco Giants, camping and riding quads with her family. 


Registered Dental Hygienist

Hillary is a Registered Dental Hygienist who graduated with Honors from SJVC in 2020. She lives in Oakdale with her husband and Maltese Cosmo, her one and only fur- “baby”. After working in the ER for 9 years she decided to take her best friend’s advice and pursue her dream of becoming a hygienist. She enjoys meeting new people and helping them have confident smiles. When Hillary is not working, she enjoys spending time with her family, friends, Giants baseball, fishing, and reading. Hillary loves being an Auntie and prides herself on being the “Best Auntie Ever”. 


Registered Dental Assistant

Jennifer  is a Registered Dental Assistant who has worked in our practice for over 16 years. She attended both Modesto Junior College and Galen College for Dental Assisting.  She loves her job, especially the relationships she has built with our patients. She is gifted in making our patients feel comfortable and at ease while they are here for their appointment. She is married and has a young son.  In her free time she enjoys shopping, reading and spending time with her family.


Registered Dental Assistant

Viviana is a dental assistant who loves being in the dental field. She received her dental assisting training from Kaplan College.  She enjoys helping patients have a comfortable experience. In her spare time she loves to spend it with her son and family and friends.


Dental Assistant

Taylor just completed her schooling for dental assisting and plans on continuing her education to become a hygienist. She loves being in the  dental field and helping people. In her free time she enjoys going to sporting events, playing with her dogs and spending time with friends and family.

Valley Esthetics Dental Group
Mary Tourtlotte, D.D.S.
Creating Beautiful Smiles

Modesto dentist, Mary Tourtlotte, D.D.S. is a dental professional dedicated to general, family, and cosmetic dentistry with services including dental exams, dental makeovers, teeth whitening, veneers, crowns, x-rays, cleanings, and more. Please call our dentist in Modesto, CA to schedule your next appointment.


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3609 Coffee Road, Suite 5Modesto, CA 95355Get Directions(209) 521-8105


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