Staff of Advanced Dental Care Greystone
Chasity Sansom- Office Manager
Chasity is originally from West Virginia and is stationed here at Moody AFB with her husband Jamie. Chasity has been very blessed by being able to travel the world through many duty stations. In 2019 she moved to Valdosta from Spangdahlem, Germany. During her journey as a military spouse, she attended Gulf Coast State College in 2008 and obtained her CDA and DANB certification’s. Chasity strives on making sure that each patient understands their care every step of the way!

Mary Santoianni- Scheduling Coordinator
This is Mary Santoianni. She has many nicknames, but her family calls her “Moo-me” for her love of cows as a child. Mary has worked for Advanced Dental Care since 2020 and has been working in the dental field since 2016. Mary received her bachelor’s from Southern New Hampshire University in Health Service Administration in 2018. Mary has lived in many places including California, Florida, Montana, Tennessee, and now Georgia. She moved to Valdosta in 2020 from Montana and is so excited to live in the warm weather again. Mary and her husband, Raymond, married in 2017 and welcomed their first child in 2018 and her second child in 2022. Mary is an absolute “foodie” and loves football season strictly for the snacks. She also loves restoring old furniture, working in her garden, and traveling to new places to explore

Amber Robitzsch, RDH- Hygienist
Amber is originally from Pace, FL. She attended Valdosta State University and graduated with her Associates of Applied Science in Dental Hygiene. Her favorite part about being a hygienist is getting to know her patients and being able to educate them. She lives in Hahira with her husband, Reed, her daughter, Amelia, and her mini golden doodle, Ollie. On the weekends, Amber can be found enjoying time with her family.
Cassie Dickerson- Scheduling Coordinator
Cassie was born and raised in Lake Park. She graduated from Echols County Schools in 2020 and is attending Valdosta State University. She started in dentistry at 16 years old and has grown a passion for it since. Cassie loves cooking, anything outdoors and playing with her fur baby, Cooper!

Holly Mizell- Dental Assistant
Holly is from Pearson, GA. In 2020, she attended Southern Regional Technical College where she received her Diploma for Dental Assisting. Holly has been married to her husband, George since 2019. Together, they enjoy traveling, spending time with family and adopted a pet snake! Holly also loves throwing parties and planning events. Her family refers to her as “The head of the party planning committee”!
Keanna Wheeler-Dental Assistant
Keanna is originally from Spanaway, Washington. She moved to Valdosta in 2016 with her husband Jevonn who is stationed at Moody, AFB. She received her Associates of Applied Technology and EDDA certification in 2015 when she started working as a dental assistant. She is a "dog mom" to Lilo who is a chocolate Lab/Husky mix. During her time off she enjoys visiting family in Washington and Hawaii and baking cakes for her friends!
