Success Orthodontics - The Dr. Gen Difference

Orthodontics isn’t just his passion;
it’s a huge part of his life.

dr gen

Meet Dr. Felix Gen

The ability to help so many wonderful people achieve their goal of attaining a healthy and beautiful smile is an incredible source of energy and inspiration for Dr. Gen. Artist by nature and scientist by education, Dr. Gen chose to become an orthodontist because of his passion for helping people change and improve their lives. He strongly believes that a beautiful smile plays a part in one’s success. Every smile that he treats is an opportunity to make a positive impact on someone’s life. As he helps his patients, they help him. Dr. Gen meets many fantastic people every day who help him grow and enrich his life.

Dr. Gen received his Bachelor of Science degree from Case Western Reserve University, as well as his Doctor of Dental Surgery. He attended the State University of New York at Buffalo where he earned his Master of Science degree and Certificate of Proficiency in Orthodontics. He was awarded the Pierre Fouchard Award, the Teledyne Waterpik Award in Prosthodontics, the American Academy of Dental Practice Administration Award, and the Academy of General Dentistry Award. He is actively involved in several local dental and orthodontic study groups and attends numerous continued education courses to stay abreast of current techniques and developments.

The look on a patient’s face when
they finally see their brand-new smile
means everything to him.

dr a

Meet Dr. A

Dr. Konstantinos Apostolopoulos was born in Athens, Greece, and raised in Kalamata, Greece. We affectionately love to call him “Dr. A” so feel free to do the same! While living in Greece, Dr. Apostolopoulos attended dental school at the National and Kapodistrian University of Athens. After graduating dental school in 2015, he worked as a general dentist in the military during his mandatory service and was able to also work alongside his mom who is a practicing general dentist in Kalamata, Greece.

In 2017, Dr. Apostolopoulos moved to the US to complete a three-year residency in Orthodontics at Case Western Reserve University (CWRU). While there, he received the B. Holly Broadbent Award for outstanding research for his thesis project. Another fun fact about Dr. Apostolopoulos’s time at Case Western Reserve University was that Dr. Gen was his professor! The two have known each other for over five years and both have like-minded treatment philosophies.

Confident Smiles, Confident Team

For over 25 years, the residents of Mayfield Heights, OH, Twinsburg, OH and the surrounding areas have found that Success Orthodontics is the most hospitable team of any orthodontics office. They treat you as if you were part of their family every time you come in. Stop by and meet the team!



My name is Donnell aka Donnie! I was born and raised in Cleveland, Ohio. I have been an Orthodontic Assistant for two years. In my free time, I enjoy doing theatre and writing scripts. What I love most about working in the dental field is watching the patient’s confidence and personality bloom with the improvement of their smile!


Haven is a native Clevelander who has 2 Australian Shepherds. She enjoys doing nails and shopping in her free time!


My name is Katrina, I am a Certified Orthodontist Assistant and have been working with Success Orthodontics for over 3 years. When I’m not helping to change smiles, I enjoy spending time with my growing family. We love to take our dog out for walks in the woods, going fishing on our boat, and enjoying time with friends and family.


My name is Kelsey and I am one of the Scheduling Coordinators at Success Orthodontics. With over 10 years of experience in customer service, I’ve built a natural ability to understand our patients’ needs and enjoy helping people get the smile they deserve. In my free time I enjoy hiking, kayaking, reading, and spending time with my husky, Jasmine.


Lia has worked in Orthodontics in every department (except as the doctor) for 15 years! She loves seeing a smile change and confidence exuded from a patient! In her free time, Lia enjoys hiking and running in the metro parks, watching her son play ice hockey and her daughter cheer, volunteering, and eating ice cream.


My name is Miranda and I am new to the Orthodontic field and am happy to join the team as one of the Financial Coordinators! I love traveling and have a goal to visit all of the national parks. When I’m not at work, you’ll find me trying out new restaurants or having a backyard campfire with friends and family!


My name is Sarah and I’m a New Patient Coordinator at Success Orthodontics. I enjoy being the first person you’ll meet in our office and I hope to make your initial visit unforgettable! When I’m not helping my team in changing lives and building confidence, you can find me spending time with my family, trying new restaurants with friends, exploring the metro parks, or checking out the art museum. I have two charming kitty cats, Chef and Poquito, who are my favorite creatures on the planet.


Sophie is an Orthodontic Clinician passionate about smiles. With a strong background in customer service, along with an advanced education from Auburn Career Center, Sophie has the ability to connect with patients and understand their needs. In her free time, she enjoys long walks with the ones she loves!


Tylie’R began his dental journey in 2019 when he decided to attend Cleveland State University to obtain his bachelors in Pre-dent (Biology). He was inspired to be an Orthodontist after his experience with braces when he was younger. The clinicians were gentle, and made him feel comfortable during visits, and decided he wanted to do the same for others! Tylie’R likes to box, play basketball, and go on fun adventures.


My name is Veronica and I have been in the dental field for over 4 years. I specifically chose Orthodontics because I love helping patients achieve their dream smile. In my free time, I enjoy spending time with my family, hanging out with my friends, travelling, and I love trying new things!


I’m Viktoriya – a proud Ukrainian! I have chosen Orthodontics because I’m happy to help people to achieve their dream smiles. My hobbies and interests include Latin American dances, carved candle making, and animator work. I’m always ready for new challenges and confidently go towards my goal – to become an orthodontist one day!


Success Orthodontics - Staff outdoors posing in front of a sign that reads greetings from cleveland