Get To Know About Us
D1 Dentistry on Main is more than a dental office — it’s a Lansdale institution. In 1952, Dr. and Mrs. Carmen Rocco opened this practice while commuting from South Philadelphia, and over the decades it became a trusted home for generations of local families. Dr. Rocco eventually built a permanent location right here on Main Street, and the practice later passed to Dr. Carmen Rocco Jr. and Dr. Connie Buffett, who carried on the same culture of personal, relationship-centered care. In 2024, Dr. Pascal Wollach and Dr. Clarie-Ann Wollach acquired the practice and created D1 Dentistry on Main — bringing fresh energy and advanced clinical training while honoring everything this office has stood for since day one.
Our mission is to provide a truly exceptional dental experience, one that is transformative, compassionate, and rooted in the connections we build with our patients.
We treat every patient the way we'd treat our own family. Warm, honest, and always in your corner.
This practice has served Lansdale since 1952. We've built relationships that span multiple generations.
Dental anxiety is real. We go at your pace, explain everything clearly, and make every visit as comfortable as possible.
Advanced training in implants, cosmetic dentistry, and aligners means more treatment options in one familiar office.
Digital x-rays, intraoral scanners, and digital treatment planning for more accurate, efficient, and comfortable care.
We explain exactly what we find, why it matters, and what your options are. No surprises. No pressure.
Dr. Wollach’s fondness for science and desire to focus in on a new passion led him to pursue dentistry. He attended the University of Pennsylvania where he earned his Doctor of Dental Medicine in 2016. To further his clinical proficiency, Dr. Wollach has completed hundreds of hours of continuing education, with much of his training focused on dental implants, clear aligner therapy, as well as patient care. He is currently finishing a 2 year fellowship focusing on modern and minimally invasive surgical techniques. He is an active member of the Academy of General Dentistry and the International Congress of Oral Implantologists.
Dr. Choi is a proud graduate of North Penn High School and earned his Doctor of Dental Medicine degree from Temple University, graduating in 2022. He provides comprehensive dental care including crowns, bridges, fillings, dentures, Root canals, and Clear aligner therapy, and is dedicated to delivering high-quality treatment with a focus on comfort and long-term oral health.
Dr. Choi believes in treating every patient like family—taking time to listen, explain options clearly, and create a personalized experience in a relaxed and supportive environment. He is passionate about staying current with the latest advancements in dentistry and regularly attends continuing education courses to sharpen his skills and offer the best care possible.
Outside the office, Dr. Choi enjoys playing basketball, bowling, and spending time with family and friends. As a true Philadelphia sports fan, he proudly supports the Eagles, Sixers, Phillies, and Flyers!
Every person on the D1 team is guided by the same six values: Positivity, Respect, Empathy, Accountability, Comprehensive Care, and a Hunger to Learn and Improve. These aren't just words. They shape how we answer the phone, how we explain treatment options, and how we show up for patients on their most anxious and their most routine days alike.
The D1 in our name is a nod to our founder's past as a Division I collegiate swimming champion. That same athlete's mindset — discipline, continuous improvement, and performing at your best — shapes how we approach dentistry. We hold ourselves to a championship standard, because that's what our patients deserve.
No insurance? No problem. The D1 Membership Plan gives patients access to quality dental care without the hassle of insurance. Members receive comprehensive exams, professional cleanings, x-rays, and discounts on additional treatments for one straightforward annual fee. It's our way of making sure cost is never a barrier to the care you deserve.
We’re not a corporate chain. We’re a family-owned practice with deep roots in Lansdale and a genuine commitment to every patient who walks through our door. Whether you’re a lifelong patient or brand new to the area, you’ll feel the difference the moment you arrive.
