Doctors

Deidra Rondeno, DDS

Deidra Rondeno, DDS

Founder and CEO

Deidra Rondeno, DDS, graduated from Meharry Medical College School of Dentistry in 1996.  She completed a General Practice Residency at Illinois Masonic Medical Center in 1997, one of the few programs in the U.S. that offers specific training in the treatment of patients having developmental disabilities.  Dr. Rondeno is a member of the American Dental Association, The Academy of General Dentistry, the Georgia Dental Association, the Hinman Dental Society, the Northern District Dental Society, American Academy of Developmental Medicine & Dentistry and the International College of Dentists.

Karen Tartt-Callier, DDS

Karen Tartt-Callier, DDS

Doctor

Karen Tartt-Callier, DDS, graduated from Meharry Medical College School of Dentistry in 1996.  Dr. Callier is a member of the American Dental Association, Georgia Dental Association, Hinman Dental Society, and Northern District Dental Society.

Dental staff

Khadija Abdelmalek

Khadija Abdelmalek

Expanded Duty Dental Assistant

Khadija Abdelmalek is a Expanded Duty Dental Assistant.  She grew up in Morocco.  She attended Metropolitan Institute of Health in Virginia, where she graduated in 2012.

Darnell Hurt

Darnell Hurt

Expanded Duty Dental Assistant and Oral Surgery Coordinator

Darnell Hurt is an Expanded Duty Dental Assistant.  Darnell is from Grand Rapids, Michigan.  He attended Fortis College and graduated in 2014.  Darnell is married and has two daughters.

Shawnda Hayes

Shawnda Hayes

Clinical Supervisor/ Expanded Duty Dental Assistant

Shawnda Hayes is an Expanded Duty Dental Assistant and is our Clinical Supervisor.  Shawnda is a native of Buffalo, NY.  She attended the Educational Opportunity Center at the University of Buffalo, where she graduated in 2008.

Chelzey Smith

Chelzey Smith

Expanded Duty Dental Assistant

Chelzey Smith grew up in Newnan, Georgia.  She joined the DDD Foundation's dental team after graduating from West Georgia Technical College in 2020.

Office staff

Tiffany White

Tiffany White

Director of Operations

Tiffany White is the Director of Operations. She graduated from Clayton State University with a bachelor’s degree in healthcare management. She is a member of DOMA (Dental Office Manager’s Association), and she recently received her Masters in Healthcare Administration. Tiffany is a native of Newnan, Georgia.

Cassandra Dallas

Cassandra Dallas

Sedation Supervisor, LPN

Cassandra Dallas is our Sedation Supervisor, LPN. She graduated from Central Georgia Technical College in 1996.  A native of Macon, Cassandra has lived in Atlanta since 1998.

Lilian Cedano

Lilian Cedano

Front Office Supervisor

Lilian Cedano is our Front Office Supervisor. She received her training as a medical administrative assistant from Everest Institute. Lilian is originally from the Dominican Republic.

Sheri Anderson

Sheri Anderson

Director of Development

Sheri Anderson is our Director of Development. Sheri received her journalism degree from California State University, Northridge. She is originally from Brandon, Mississippi.  She came to the DDD Foundation in 2012 with 22 years of nonprofit management experience.                                                                                                                          

Laura Formey

Laura Formey

Sedation Coordinator

Laura Formey is our Sedation Coordinator and is a certified phlebotomy technician.  She grew up in Belgium, and moved to the United States in 2006. She is fluent in French, Spanish and English.  Laura is married and has four daughters.  Prior to joining the staff at DDD Foundation, Laura was a preschool teacher, homeschool teacher, and had a bakery and catering business.  

Mary Boyle

Mary Boyle

Bookkeeper

Mary Boyle is our part-time Bookkeeper.   She has a Bachelor of Science in Accounting from Northern Arizona University (her home state) and a Master’s in Psychology from Georgia Tech.  Mary moved from California to Atlanta in 1993.