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Meet Our Dental Team

Dental Team

Our tight-knit staff here at Purple Plum Dentistry is passionate about meeting patients’ needs and exceeding their expectations as well. From the front desk to the treatment operatory, they’ll be answering questions and helping you feel comfortable every step of way. Their friendly faces will be sure to leave you smiling! Keep reading below to learn more about each team member:

Michelle Barrera

Office Manager

Office manager Michelle Barrera

Michelle is originally from Puertro Rico, and she’s been working in dentistry since 1995. She has experience in just about every aspect of the field, from assisting to consulting. Her organizational skills and extensive knowledge of dentistry, the insurance system, and treatment planning make her a great fit for her position! She loves to help people in every way she can.

Outside of work, Michelle and her husband Marvin have two grown daughters – Karla is working in law while Karen is attending VCU and working towards becoming a dentist herself! In her free time, she enjoys hiking, dancing, bike riding, cooking, drawing, and singing. In the past, she’s also traveled to third world countries on dental missions in order to serve the less fortunate.


Mariela Alvallero

Dental Assistant

Dental assistant Mariela Alvallero

Originally from El Salvador, Mariela first joined the Purple Plum team around five years ago, and she has well over a decade of experience in the dental world overall. Her favorite part of the job is being able to meet such diverse people every day! She is certified in CPR and radiography.

Mariela is married and has one son. Whenever she isn’t busy at work, she spends her free time exercising, cooking, and being with family. She speaks fluent Spanish in addition to English.


Karla Hernandez

Patient Coordinator

Patient coordinator Karla Hernandez

Karla is originally from right here in Virginia. Her passion lies in law and she is currently studying for her L-sat. Karla's favorite part of working at Purple Plum is helping people.

Karla is an avid book lover. She enjoys walks with her pet Chewy and loves history.

Elizabeth Guerrero

Dental Assistant

Elizabeth was born and raised right here in Virginia! She completed a dental program called DATS to become a dental assistant and has undergone additional training in radiography and CPR. She is passionate about helping patients smile and looks forward to many more years in the dental field.

Outside of the office, Elizabeth likes to travel, take pictures, and cook. She also enjoys shopping and exploring DC with her boyfriend Ethan, so she knows all the best spots to eat and shop! Here’s something you may not know about her: she has a Peruvian and Japanese background!

Cynthia Andrade

Dental Assistant

Born and raised in northern Virginia with Salvadorian descent, Cynthia is the newest edition to Purple Plum Dentistry. She is bilingual in English and Spanish, a GMU alumna, and certified in radiography. For her, helping people by providing excellent care is extremely rewarding.

Congratulations are in order since Cynthia is a new mom! Outside of dentistry, her interests include painting, knitting, and crafting. She is also a huge fan of The Nightmare Before Christmas. In fact, Halloween is her favorite holiday – ask her about fun costume ideas!