Our Doctors


Dr. Steven Richter is a lifelong resident of Morristown. He graduated from Morristown High School in 1970, and then attended Brown University. After graduating with a BS in Biomedical engineering in 1974, he attended Fairleigh Dickinson University. There he received a DMD with honors in orthodontics in 1978.

He started the practice in Morristown and continued his education in advanced studies in Orthodontics at the US Dental Institute and graduated in 1985. Continued education in the field of dental implantology has kept Dr. Richter on the cutting edge with restorative dentistry involving implants.

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Dr. Rishi I. Nijhawan, born and raised in New Jersey, has been a resident of Branchburg for the past 20 years. Being inspired by his orthodontist as a child, he pursued his interest in dentistry by going to the New Jersey Institute of Technology‘s 7-Year Accelerated Dental Program. After being a part of the Albert Dorman Honors College, where he received a bachelor’s degree in engineering science in only three years, he subsequently received his Doctorate of Dental Medicine from The University of Medicine and Dentistry of New Jersey, becoming the youngest dentist in his graduating class.
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Dr. Xuxin Zhang moved to the U.S. with his family. He received Bachelors of Science degree in Biomedical Engineering from University of Rochester. He holds a Masters of Science degree in Technical Entrepreneurship and Management, and contributed to a patented photodynamic biliary stent. Inspired by the oral surgeon who performed his wisdom tooth extraction, Dr. Zhang went on to pursue his dental education at NYU College of Dentistry. After graduation, he continued GPR residency training at Maimonides Medical Center in Brooklyn. Dr. Zhang practiced general dentistry in Manhattan, Brooklyn, and Long Island before moving to New Jersey. He is Invisalign certified and attends seminars routinely to learn up-to-date advances in the field. He strives to provide treatments in a comfortable and efficient manner. Dr. Zhang emphasizes on disease prevention and takes great pride in restoring smiles of many satisfied patients.
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