Meet The Dentists
Richard Mandelaris, DMD
Pediatric Dentist & Practice Owner
Dr. Mandelaris received his bachelor's degree from the University of Southern California. He continued his education at the School of Dentistry at the University of Pittsburgh, Pennsylvania, where he received his DMD degree. After serving two years in the Naval Dental Corps, he returned to the University of Southern California for his residency. He completed his residency at the Children's Hospital in Los Angeles in pediatric dentistry. Dr. Mandelaris established his practice in Davis in 1975. He married his wife Darlene in 1969 and has two children and 5 grandchildren.
Justin Jergensen, DDS, MS
Justin Jergensen, DDS, MS, a licensed and experienced orthodontist, brought his additional skills and enthusiasm to Dr. Mandelaris' team the summer of 2016. Dr. JJ, as the kids call him, is a graduate of UCSF dental school and University of Maryland Orthodontic Residency. He loves connecting with patients and improving their lives, confidence and health by enhancing their smile. Dr. JJ spent three years as an acclaimed orthodontist in Texas, where he also met his wife, Sandra, and started a family. After having two children, Dr. Jergensen and Sandra decided to move back to California and are delighted to reside in the beautiful Davis area. Aside from his love of orthodontia, his other interests include waterskiing, snowboarding, guitar, tennis, golf, family time and cooking.
Lisa Elenberger, DDS
Lisa Elenberger graduated from the University of Pittsburgh in 1985 with a degree in dental hygiene, and then earned her dental degree 1989 from Georgetown University School of Dentistry in Washington, D.C. She is married to Dr. Jeffrey Elenberger, an orthodontist in Rocklin, CA and has three children. Dr. Elenberger has been with our team since 1993, taking a little time off here and there to be with her children.
Paul Johnson, DDS
Prior to and during undergraduate training, Dr. Johnson worked as a finish carpenter, bicycle mechanic and an EMT in the ER, NICU, PICU at the Children's Hospital in Oakland and in the ER at San Diego Children's Hospital. He attained a Bachelor of Science degree in psychology from the University of California in San Diego and his master's, DDS and pediatric specialty training for the University of California at San Francisco. Aside from his love of pediatric dentistry, his other passions include spending copious amounts of time with his partner Jessica and their two Chihuahuas, traveling, restoring and racing vintage Honda motorcycles and racing dirt motorcycles. Dr. Johnson joined the Mandelaris' team in 2012.
Rohini Rattu, DDS
Dr. Rohini Rattu received her bachelor's from UC Davis in 2002. She went on to obtain her Doctorate of Dental Surgery from Columbia University College of Dental Medicine in New York City. During her four years at Columbia, she held several positions on Class Council and was involved with Student Government for the dental school. Dr. Rattu continued her dental training for an additional two years at Boston University Goldman School of Dental Medicine, where she obtained her certificate in Pediatric Dentistry. In 2010, Dr. Rattu became a Diplomat by the American Board of Pediatric Dentistry. Dr. Rattu feels she has come full circle. She is back in Davis, where she met her husband during their undergraduate days. They now have two funny, crazy little boys who brighten up their world! In her free time, Dr. Rattu likes to take advantage of the outdoors. As a family, they love exploring new restaurants, which will accommodate two rambunctious toddlers, of course!
Brett Martin was born and raised in Sacramento, California. He graduated with a B.S. in biological sciences, with an emphasis in molecular and cellular biology from UC Davis. He then completed his dental studies at UCLA, where he received his D.D.S. degree. During his time at UCLA, he was one of the founding members of the national Student Professional and Ethics Association (SPEA), which is responsible for promoting high ethical standards in the field of dentistry.
While volunteering at Give Kids a Smile and an underserved pediatric dental clinic, Brett found his passion for pediatric dentistry. Brett completed his pediatric specialty training at UCSF, where he also received a M.S. degree in oral and craniofacial biology. Outside the dental office, Dr. Martin enjoys spending time with his family and friends, hiking, and golfing.
Dr. Martin is a member of the California Dental Association, the American Academy of Pediatric Dentistry, and the California Society of Pediatric Dentistry.