Chandler Dentist Andrew Lewis, DDSDr. Andrew Lewis earned his Doctor of Dental Surgery degree from Loma Linda University School of Dentistry. Prior to dental school, he studied abroad in Argentina and Chile, and he was an English as a Second Language (ESL) teacher in Ecuador.

Interacting with people from around the world has given Dr. Lewis an ability to relate to different kinds of people on a personal level and with unique compassion. This enables him to provide superior care to patients of all ages and backgrounds.

Dr. Lewis enjoys transforming people’s lives by relieving pain, and restoring patients’ confidence with a beautiful smile. Dr. Lewis looks forward to continuing the legacy of Valley Dental Care and treating patients with the same care and precision they are accustomed to.

Donna Koos – Registered Dental Hygienist

My name is Donna Koos, I was born and raised in Chicago, Illinois.

Living there until I moved to Arizona in 2001. I have had a career in dentistry for 45years, 9 years as a certified dental assistant and 36 years as a registered dental hygienist.

Two, of the 46 years in dentistry, I spent living and working as a dental hygienist in Switzerland. Two of my favorite things to do are traveling and hiking.

Hazel Studer – Registered Dental Hygienist

My name is Hazel Studer, I was born and raised in Arizona. My mom was the best dentist in Queen Creek, AZ and opened a practice there in 1986. So, I grew up in the dental field.

I started working in her office in my teen years, but it wasn’t until my college years and working as an assistant there that I grew a love for dentistry and pursued becoming a hygienist.

I graduated from Rio Salado College in 2002. I’ve worked at Valley Dental Care since 2007 and enjoy every minute of it. Off work, I enjoy spending time with my husband and 2 kids.

Janine Selby – Registered Dental Hygienist

My name is Janine Selby I grew up in Maryland and graduated from the University of Maryland dental school with my degree in dental hygiene.

I have 21 years’ experience as a registered dental hygienist. I also retired from the United States air force having served 20 years’ service.

I currently reside in Chandler, AZ where I enjoy relaxing and enjoying the Arizona weather.

Victoria Trejo – Office Lead

My name is Victoria Trejo, I have a beautiful young daughter and a wonderful husband.

I’ve been in the dental field for 4 years now. I started off being a front office receptionist with no dental experience, and have grown to love learning about dentistry ever since. My passion for the dental field goes beyond, there is always something new and evolving in the dental field.

Two of my favorite hobbies is worship dancing and spending time with my family. Family plays a very big role in my life and love to say that all the staff at Valley dental care is a part of my family. (Philippians 4:13.)

Gabriela Pelaez – Treatment Coordinator

Hello, my name is, Gabriela P. I moved to Arizona from California in 2010. I have been in the dental field over 7 years.

I started as a dental assistant, and I have been working front office for the past 4 years. I enjoy seeing patients happy and believe everyone deserves a beautiful smile.

When I am not working, I like spending time with my family or friends. I enjoy hiking, cooking, reading, and going to church on Sundays.


Jacque McDonald – Lead Dental Assistant

I am a native to Arizona and live in Ahwatukee currently. I have one 10-year-old daughter, Makenzi.

I have had the pleasure of being a dental assistant for almost 6 years at Valley Dental Care and love to help take care of our patients!


Claudia Jimenez – Dental Assistant

I’m a resident of Arizona. I’ve been assisting for 2 ½ years at Valley Dental Care.

I love my job and enjoy the moments I have with patients. Outside of work I’m a part of a church band called The Jericho Project.

When I’m not busy with the band, I have 8 amazing nieces and nephews that love to have my time.