About Our Practice

Modern Smiles is located at 4900 Ottawa Street Suite 200, Bismarck, ND 58503.


If you have any questions about our practice or would like to schedule an appointment, please call us at (701) 751-7510.


We look forward to seeing you!

Welcome To Our Office!


Dr. Heidi Nichols-Johnson has been practicing dentistry since 2004. She opened Modern Smiles in 2015.


Our goal is to take such good care of people that they become life-long patients.


As soon as you walk through our doors, you will know you are in excellent hands at Modern Smiles. You will be welcomed with a smile and seen on time for your appointment.


Dr. Heidi and her team only use the latest techniques and finest materials in treatments to deliver comfortable, long-lasting results. Our charming office provides a soothing atmosphere, equipped with modern amenities, including pillows, blankets, dark safety glasses, and our patients’ favorite: lip moisturizer for longer procedures.


North Dakota State Bison fans: check out the flooring in Dr. Heidi’s office. It is from an NDSU Bison basketball court!

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