Meet Our Team


Susan Russo
Registered Dental Hygienist

Susan has been a hygienist for over 35 years, receiving her education at Chahot College in Hayward. She has worked with Dr. Li for 25 years now.

She has  three sons and three granddaughters, all of whom she tries to see as often as possible! When not working, she and her husband enjoy bike riding, hiking on the East Bay Regional Trails with her sister and  friends, and working in the peace and quiet of her garden.


Mary Ann Cross
Registered Dental Assistant & Office Coordinator

Mary Ann has now worked with Dr. Li for 25 years, mainly as his Office Coordinator after a short time as his Dental Assistant. 

She truly enjoys her position in our office, from scheduling to dealing with  dental insurance. She also continues to enrich her knowledge with continuing education classes, always hoping to learn more about the art and science of dentistry.

She and her husband Don have made their home in Livermore and have two adult children, Jason and Melissa. When out of the office, she enjoys walking, gardening, her home, and her dog Shelby.

Cori Silva
Registered Dental Hygienist

Cori has been working in the dental field since 2003, starting as an assistant in a children's dental practice. She earned an AS in Biology from CSU Stanislaus. Cori completed hygiene school in 2007 and began practicing in the Bay Area.

Along with being an enthusiastic hygienist, Cori loves hiking, fly fishing, playing guitar, gardening, traveling, and doing volunteer work. Some of the countries she's visited and volunteered in include Mexico, India, Cambodia, and Nicaragua. 


Jessica has been working in the dental industry for over 14  years. Beginning as a dental assistant, she now possesses the skills to work the front office, as well, and assists there on a daily basis.

She has worked with Dr. Li and his team off and on for the last 12 years. Jessica and her family have resided in Pleasanton for over  16 years. She and her husband  have 4 beautiful children.

When not working Jessica can be seen rooting for her oldest son playing baseball, listening to country music, or planning her next trip to Disneyland with her family.


Liz has been in the dental field for five years and has been assisting Dr. Li since February 2015. She graduated from Chico State with a degree in Nutrition and Food Science and later continued her education at Loma Vista to become a Registered Dental Assistant.

When not assisting, Liz is on the golf course. She also enjoys hiking, biking, wine country, and her English Bulldog, Merc.