Meet The Team

(916) 967-7721


Alissa Vinson, RDA

Registered Dental Assistant

Hi! My name is Alissa Vinson and I have been a registered dental assistant since 2004. My grandmother was a patient of Dr. Obregon’s and she suggested that I would enjoy working with him.  I moved from the Bay Area/Morgan Hill in 2007 to start assisting Dr. Obregon. Shortly after moving to Sacramento I also met and married my husband.  GOD works in mysterious and miraculous ways!!

 I love to talk and I am a big goofball who enjoys making patients laugh, especially the   nervous ones. I am an April Fools baby who enjoys food, San Francisco Giants, Disneyland   and Hawaii. My husband Darren and I hope to retire in Kauai, Hawaii.

 I hope to see you soon and we will discuss your favorite foods, movies and trust me we will   giggle and laugh.


Lynn Yamanishi, RDH

Registered Dental Hygienist

Hello and my name is Lynn Yamanishi. I grew up in the Bay Area and became interested in dental hygiene at the age of nine when our family veterinary taught me how to clean my dog’s teeth. I graduated from the University of North Carolina at Chapel Hill in 1986 with a Bachelor of Science degree in Dental Hygiene.  After practicing in the Bay Area and Los Angeles I moved to Sacramento and began working for Dr. Obregon in 1997.

I am dedicated to educating my patients about the importance of their oral health and its impact on their overall health. I have a genuine interest in every patient, making sure people feel welcomed and making their smiles brighter.

When I am not working I enjoy spending time with my husband, my two college age children and my two furry friends. Playing board games, swimming and dreaming of traveling to distant lands are my favorite activities.

Elizabeth Rosales

When you call our office you will be greeted by Elizabeth. She is warm, loving and has a wonderful laugh.
She is blessed with 4 children and 4 grandchildren.

She started her dental career in 1975 as a Registered Dental Assistant. Her personality and excellent communication skills are the perfect blend to assist you in navigating your dental path at Obregon Dental. She speaks with everyone as if you were a friend or family member. I greatly appreciate this level of communication and care since this is the way that I like to be treated.
She looks forward to meeting you, answering your dental insurance questions and scheduling an appointment.


Registered Dental Hygienist

Bio Coming Soon....


Welcome our newest team member, Samantha and our future Registered Dental Assistant. She is great with the patients and staff and she is looking forward to meeting everyone.

Healthy Smiles

What does your smile say about you? Let us help you radiate confidence with a healthy smile.