Meet the Doctors
Our Doctors
At Koenigsknecht Dentistry, our doctors combine advanced clinical training with a warm, patient-centered approach. Each brings a unique background and skill set, but all share the same commitment:
to provide dentistry that is honest, comfortable, functional, and built to last.
You’ll never feel rushed here.
You’ll always know your options.
And you’ll be treated like family — because that’s how this practice was built.
Dr. Nick
Dentist • KOIS Trained • HealthyStart Certified
Dr. Nick has been caring for patients in St. Johns since 2005. A graduate of the University of Michigan School of Dentistry, he blends decades of hands-on experience with continuous advanced training.
He completed a multi-year education path through the KOIS Center, one of the leading institutions in functional, restorative, and aesthetic dentistry. This training allows him to diagnose more precisely and create treatment plans that work predictably and comfortably over the long term.
Dr. Nick is also the only HealthyStart-certified provider in the region, offering specialized care for children with airway or sleep-disordered breathing.
He is active in the community and served as the 2024–2025 President of St. Johns Rotary.
Areas of interest:
- Bite & functional dentistry
- Restorative dentistry
- Pediatric airway development (HealthyStart)
- Invisalign®
- Long-term oral health planning
Dr. Jonathan
Dentist • KOIS Trained • Comprehensive Family Care
A St. Johns native and proud graduate of St. Johns High School, Dr. Jonathan went on to complete a Bachelor of Science in Human Biology at Michigan State University before earning his dental degree at the University of Michigan.
He has completed significant postgraduate training — including KOIS Center coursework — with a focus on predictability, smile aesthetics, function, and long-term comfort. His calm, thoughtful personality helps patients feel at ease, and he’s known for taking the time to explain every step of care.
Areas of interest:
- Smile design and esthetics
- Restorative dentistry
- Pediatric dentistry
- TMJ and bite-related issues
- Invisalign®
Dr. Nate Jandernoa
Dr. Nate grew up in nearby Fowler and earned a degree in Biosystems Engineering from Michigan State University before attending The Ohio State University College of Dentistry. He practiced in the Lansing area before joining Koenigsknecht Dentistry to serve the community he has always called home.
He is currently working through the KOIS Center curriculum. Patients appreciate his warm personality, clear communication, and ability to make dentistry approachable. He enjoys building long-term relationships and helping patients understand how oral health connects to overall wellness.
Areas of interest:
- Family dentistry
- Preventive and restorative care
- Patient education
Comprehensive treatment planning