Meet The Team

Meet The Team

Dr. Tram Lyna Vu

General Dentist

Dr. Lyna grew up in Phoenix and decided to move back home in 2013 after living in California for some time. A summa cum laude graduate from Arizona State University, Dr. Lyna pursued her career goal as a dentist at the University of California, San Francisco.  Upon graduation, she was selected to be a member of the OKU National Dental Honor Society. Dr. Lyna also did an additional year of training at the VA Long Beach Healthcare System. Her passion for dentistry is apparent through her active involvement in the dental community.  Dr. Lyna has spent time volunteering at various community events providing free dental care for those in need, including mission trips to Honduras and Guatemala. She has been selected by her peers to be a delegate for the Central Arizona Dental Society and board member of the Arizona Dental Foundation.  Dr. Lyna loves to travel and is a huge food enthusiast! In her free time, she loves to spend time with family, friends and her Mini Schnauzer “Kobe!” She enjoys hiking and exploring nature.


Dr. Lyna is a member of the American Dental Association, Arizona Dental Association, Academy of General Dentistry, Central Arizona Dental Society, Omicron Kappa Upsilon Dental Honors Society, Tucker Gold Study Club, Spear Study Club, and sits on the committee of  the Arizona Dental Foundation.

Dr. Denise Liu

General Dentist

Dr. Denise Liu grew up in the sunny state of Arizona. Her education, training, and work to become a dentist moved her around a lot, but now she has returned to the valley to start her family and establish roots. She graduated from the University of Arizona with a Bachelor’s degree in Physiology with magna cum laude distinction. She then earned her Doctor of Dental Medicine degree at the prestigious University of Pennsylvania in 2014 with Honors in Clinical Dentistry and Honors in Community Outreach. Continuing her education, she underwent further training by completing a general practice residency at the VA West Los Angeles Medical Center, where she had the privilege of treating veterans with complex dental needs. While working in private practice in Los Angeles, she partnered with an obstetrics clinic to work with patients on managing their oral health during pregnancy.


Dr. Liu’s primary goal is to provide meaningful experiences for her patients and bring healthier smiles to the community.  Dentistry has allowed her to get to know her patients and their families over time, which is something she truly loves.  She values every patient she treats and takes pride in empowering them to take control of their oral health. She is committed to providing the highest quality of dental care to her patients and keeps herself updated with the latest techniques and technologies. When she’s not in the office, Dr. Liu enjoys spending time with her family, cooking with her Dad, and getting stronger in the gym. She also isn’t afraid to admit that she has a sweet tooth and loves indulging in sweet treats.

Dr. Ernie Nehrer

Pediatric Dentist

Dr. Ernie is a California native, he grew up in Santa Cruz, a small beach town in Northern California.  After graduating highschool, Ernie went on to UC Davis for his undergraduate degree and then onto UC San Francisco for Dental School.  He found a passion for working with children during an externship and then decided to continue his training at the University of Southern California for his residency in Pediatric Dentistry.  Ever since moving to Arizona, Ernie has been an active member of the American Academy of Pediatric Dentistry, and is currently the President of the Arizona Chapter.

Dr. Ernie’s main goals as a pediatric dentist are to create a positive environment for his patients and to educate parents about the importance of hygiene habits and a healthy diet.  On the weekends, Ernie enjoys cooking and doing anything active: playing basketball, hiking, and working out!

Sheilagh Murray


Sheilagh Murray was born and raised in The San Francisco Bay Area, but for the past twenty-five years she and her family have made Phoenix home.  Sheilagh has been involved in dentistry from a young age.  Her first high school job was as a dental assistant.  Her dental assisting career followed her through college at Brigham Young University.   As her children left home she realized how much she missed dentistry, science and learning.  In 2010, she went back to college and earned a degree in Applied Science and completed her licensure as a Registered Dental Hygienist.  Sheilagh finds great fulfillment in the relationships she builds with her wonderful patients.  Sheilagh and Scott enjoy traveling internationally, hiking, photography, studying art and European history.  Their favorite activity is spending as much time as they can with their grown children, and nine beautiful grandchildren.  Life is very busy and incredibly fulfilling!

Katie Morgan

Patient Liaison

Katie joined our team in 2012 and assists both Dr. Vu and the hygienists as their lead dental assistant. Katie is a quick study as she is a trained medical assistant and became a cream of the crop dental assistant overnight!  She enjoys working at an office that feels just like family. By consistently striving to treat patients how she would like to be treated, Katie helps to make every visit here relaxing and comfortable. When she is not at the office, you can find Katie spending time with her husband Aaron, relaxing at home, camping, traveling, trying new foods, or spending time with her two nieces and 3 nephews and family.

Bobbie Haaven


Bobbie Haaven was born in Pennsylvania, coming from a military family, she had the opportunity to travel around the world.  In her senior year of high-school, she moved to Arizona and was part of the first graduation class of Chaparral.  She attended Bryman Dental Assistant School and went onto work as an assistant and front office team member for twenty five years.  During that time, she wanted to further her education and attended Phoenix College to earn her degree in Applied Sciences and completed her licensure as a Registered Dental Hygienist.  Bobbie also has experience working in the medical field!  On the weekends, she works as a home health care provider.  When Bobbie is not in the office, you can find her on a hike on one of Phoenix’s great trails or cooking at home.  She loves her four pets, including two dogs and two cats.

Tammy Duncan

Front Office Coordinator

Bio coming soon!