Our team members are always warm, friendly and treat everyone like family. We understand how going to see the dentist can be harrowing for some and want to make your visit with Dr. Nikolas Stathopoulos as positive as possible. If there is anything we can do for you, do not hesitate to call us at 925-718-8483. We invite you to schedule your visit with our dentist in San Ramon, California, at Parthenon Dental today.

Chad Bergquist

Office Manager

Chad came to Parthenon Dental with over 13 years of dental experience. Chad has a bachelor’s degree in Economics from Sacramento State and a master’s degree in Healthcare Administration from Saint Joseph’s University in Pennsylvania. He is married and has two kids and two dogs. He enjoys BBQing, traveling, the 49ers and learning new things. Fun fact, Chad is a bowling amateur and can bowl a 220.

Julia Wardrip

Assistant Manager

Julia has been working with Dr. Niko for about four years. She has an undergraduate degree in Psychology and is still pursuing school endeavors. She currently resides in the beautiful oceanside Pacific Grove with her two cats and boyfriend. In her free time, you can find her watching movies, reading books, playing computer games, cooking or cycling.

Heather Dias

Insurance Coordinator

Heather has over nine years of dental experience working in both the clinical and office setting. She is the “go-to” for any-and-all insurance questions. Heather loves to cook, especially Italian food, but is not shy about trying out new recipes for the team. Heather loves to spend time with her dog, Murphy, family and friends. She loves to travel and learn new languages (she is trying to learn Greek, right now). She will make you feel right at home when you come in!

Voula Stathopoulos

Chief Financial Officer

Voula is the financial mastermind behind the curtain who has a keen eye for detail and financial planning. She enjoys her family of two boys and one girl, and of course, Dr. Niko. She loves her vacation time in Greece with her family, exercising and hiking with friends. She enjoys hosting and cooking for
parties. She loves In-and-Out Burger occasionally and traveling to small towns around California.

Claudia Wardrip

Expanded Functions Dental Assistant

Claudia has been a Registered Dental Assistant with extended functions for over 38 years. She started working with Dr. Niko in 2019 and has vowed to stay with him until she retires. She has three daughters, one granddaughter and a wonderful husband. In her free time, she enjoys watching the Golden State Warriors, cooking, running (including half marathons), hiking, dancing or watching depressing movies based on true stories.

Alexis Ramirez

Registered Dental Assistant

Alexis loves all things dental. She is new to the dental field having earned her certification in dental assisting in 2023. She loves to learn, especially when it comes to the new dental technology. Alexis loves to be the first to know about what dental technology is coming out, what features they have and how they can help our patients. She loves to cook her grandma’s recipes and spending time with her three cats. Alexis also enjoys playing games in the computer or her Nintendo Switch.

Yadira Zelaya

Registered Dental Assistant

Yadi has worked in the dental field for over 20 years. As a registered dental assistant, she loves taking care of her patients and making them feel at home. She loves to travel, spending time with her family (including her two cats) as well as hiking, long road trips and reading a great book.

Asia Baharistani

Dental Hygienist

As a registered dental hygienist, Asia enjoys speaking to her patients about gum health. She loves being an advocate for patient oral health and claims she is “the fastest prober in the west”. She loves spending time with her huge family, her pet cat, Moosh, anything beauty care related and movies from the 80’s. She enjoys cooking, exercising when she has time and her competitions as a billiard amateur.

Bessie Tuazon

Dental Hygienist

Bessie is well seasoned in dental hygiene and passionate about dentistry. She has a wealth of knowledge about oral health and its effects on our overall health. Her patients love her genuine concern for them, which is why she has a very loyal patient base. Bessie enjoys her animals, pickle ball, biking, hiking and rock climbing. She loves to travel with her family of three children and husband of over 33 years.