Dr. Vega
Agustin Vega, DDS, PS
Born and raised in Guanica, Puerto Rico, Dr. Vega wanted to be a dentist from a very young age. After graduating from Marquette University School of Dentistry, Dr. Vega enlisted in the U. S. Army, Where he completed a one-year general residency program. He was promoted to Major in 1991 and served at a dental clinic at Ft. Lewis, Washington, with a focus on Oral surgery. In 1994, Dr. Vega left the Army and went into private practice in Olympia, Washington. Dr. Vega is grateful to have many patients he considers friends, as well as an outstanding, committed staff that is dedicated to making patients feel comfortable while providing exceptional, considerate , and compassionate care. Dr. Vega strives to stay updated with the latest advancements in dental technology, which allows him to provide a wide range of dental services right here in the office. Being fluent in Spanish, Dr. Vega and his staff are committed to providing quality care in a welcoming environment for all of their patients. Dr. Vega spends his extra time with his family and three dogs, Luna, Poncho and Pepe while they enjoy the Pacific Northwest.

Meet Our Team
At the dental practice of A. Agustin Vega, you will sure to receive an exceptional experience. Our fun, loving, and knowledgeable team is here to give you the dental care you deserve in a comfortable and energetic environment.


Lea, Practice Office Manager
Lea joined Dr. Vega’s team in June of 2014 as a dental assistant. Lea has provided excellent hands-on-care to our patients over the last six years. Having recently gained a wealth of knowledge in insurance billing, scheduling and the general day to day operations of Dr. Vega’s practice. She has the skills to assist patients in everything from scheduling, insurance questions as well as answering many of the clinical question you may have. Lea lives in Onalaska but states, “Working with Dr. Vega and the rest of the staff is like family and always worth the commute.” In her spare time, Lea enjoys the great outdoors with her significant other Neil and their sons. Lea also enjoys barrel racing with her horse Kirby and also volunteers as a coach for the W. F. West High School Equestrian Team in Chehalis, WA. Should you have and questions about insurance coverage or would simply like to make an appointment, please call Lea at 360-943-5551.


Vanessa, Treatment Coordinator/ Administrator
Vanessa Joined Dr. Vega’s administrative team in September 2021. Vanessa has a strong passion for dentistry that has kept her working in the dental field for 20 plus years. Vanessa was a previous dental assistant and also has extensive experience with dental insurance and can help with any insurance questions. Vanessa enjoys working with Dr. Vega because he genuinely cares for his patients and team. Vanessa is full of positivity and wants to help each one of our patients to have a fantastic experience as soon as they come through our door.


Kristina, Lead Dental Assistant
Kristina has been working as a dental assistant on Dr. Vega’s team since January of 2007. She is a valuable part of the team and ensures that patient care in the back office runs as smoothly as possible. Kristina believes in ensuring that our patients have the most pleasant experience while under her care. She enjoys working with Dr. Vega because of his excellent patient care at witty sense of humor. “If you make an appointment in our office, don’t be surprised if you hear a lot of laughter and singing, courtesy of Dr. Vega.” In her spare time, Kristina enjoys spending time with her husband, two daughters, two grandchildren and her three lovable dogs. If you have any questions about your treatment, please give Kristina a call at 360-943-5551.


Lindsey, Registered Dental Assistant/Expanded functions auxiliary dental assistant
Lindsey began her dental career in 2009 attending the dental assisting program at SPSCC. Lindsey later returned to pursue her education at SPSCC to enroll in the expanded functions dental auxiliary program in 2013 expanding her knowledge in dental and becoming qualified to do more in the office including placing restorations and final impressions. Lindsey joined our team in August 2021. Lindsey lives in Centralia, Washington, with her partner and two dogs, Ziggy and Milo. She enjoys long walks with her dogs and doing things around town with friends like bingo, trivia and bowling!


Cassy, Registered Dental Hygienist
Cassy graduated from the Pierce College dental hygiene program in 2008. She loves educating and helping her patients with their oral health needs. Cassy’s goal is to ensure our patients have a thorough and comfortable experience while in her care. she wants our patients to be well informed about their oral health and have all the answers for any questions or concerns before they ever leave their appointments. Cassy and her husband have been married since August of 2002. They are blessed with two boys that keep them very busy. As a family, they enjoy their RZR, riding quads, camping and traveling when possible.


Sierra, Registered Dental Hygienist
Sierra Joined Dr. Vega’s dental hygiene team January of 2022. Sierra graduated from the Pierce College dental hygiene program in 2012 and received her Bachelor of Science in dental hygiene from Eastern Washington University in 2013. Sierra has been practicing for 10 years now and strives to provide comfortable personalized care for each of her patient’s periodontal health needs. Sierra grew up as an army brat but has been in Olympia now for almost 20 years. Sierra lives with her husband and 2-year-old son. In her spare time, she enjoys time with her family, hiking, snowboarding, weight training and playing soccer year-round.