Meet Our Doctors

Dr. William Peña

Pediatric Dentist

Dr. William PeñaDr. Peña is a Board-Certified Pediatric Dentist who has extensive experience in the dental care of children, adolescents, and special needs patients. He received a dual-degree Doctor of Dental Medicine (D.M.D.) and Master's in Business Administration (M.B.A.) from Nova Southeastern University and graduated with top honors. He completed his residency at the University of California, San Francisco (UCSF), where he received a certificate of Advanced Education in Pediatric Dentistry and a Master's degree in Oral and Craniofacial Sciences.

Dr. Peña is also the recipient of the honorary Eric B. Bystrom D.D.S. Memorial Pediatric Dentistry Award for Excellence in the Treatment of Special Needs Patients. His research on the treatment and management of special needs patients has been published in nationally recognized dental journals. He is also trained in Pediatric Advanced Life Support (PALS) and holds a sedation permit for the administration of oral medicine for patients. Dr. Peña is currently a clinical professor at Nova Southeastern University Department of Pediatric Dentistry and has professional affiliations with the American Academy of Pediatric Dentistry, American Cleft Palate-Craniofacial Association, and the Florida Dental Association.

On a personal note, Dr. Peña and his wife are the proud parents of three beautiful children, Adrian, Leia and Annabelle. He has been a South Florida native for the past 30 years and is actively involved in giving back to the community both at home and abroad. He has participated in community events such as "Give Kids a Smile" for the past 5 years and has attended medical missions to Jamaica and Guatemala. Dr. Peña's personal philosophy is that every child should receive dental care in a warm and compassionate manner and our office is geared towards fulfilling this goal.

Dr. Lizette Valiente

Pediatric Dentist

Dr. Lizette ValienteDr. Valiente is a Board-Certified Pediatric Dentist with a passion for instilling a positive experience in her patients. Dr. Valiente received her undergraduate degree at Florida International University, where she received a bachelor's degree in biological sciences. She completed her dental degree (D.M.D.) at Nova Southeastern University and upon completion, worked for two years as a general dentist before deciding to return to Nova Southeastern University to earn her specialty degree in Pediatric Dentistry. During her extensive post-doctoral training, Dr. Valiente worked at Joe DiMaggio Children's Hospital as well as Broward General Hospital treating children with extensive dental needs. In addition, she received rigorous training in the use of oral sedatives for children with dental fear and is devoted to working with young children as well as patients with special needs to provide a warm, friendly atmosphere for their dental care. She is trained in Pediatric Advanced Life Support (PALS) and has professional affiliations with the American Academy of Pediatric Dentistry and the Florida Dental Association. Dr. Valiente currently practices out of our Doral and Pembroke Pines locations.

Dr. Valiente believes in community service; she has participated in mission trips to Jamaica and has been part of community events such as "Give Kids a Smile". She is originally from Cartagena, Colombia and has lived in South Florida for the last 21 years. In her spare time she enjoys spending quality time with her family and friends and is an avid dog lover.

Dr. Tamara McCallum

Pediatric Dentist

Dr. Tamara McCallumDr. Tamara McCallum is a Board Certified Pediatric Dentist who continues to develop her love and passion for treating children. Originally from Guyana, South America, Dr. McCallum has called home to various countries and cities, including the Turks and Caicos Islands and Washington DC before settling in Miami, FL. She is happy to call South Florida her home for the past 14 years. Dr. Tamara McCallum received her Bachelor of Science degree in Biology from Florida International University and her Doctorate of Dental Surgery degree from the Howard University College of Dentistry in Washington DC. She then completed a two-year residency program in Pediatric Dentistry at Howard University. Her pediatric dental training included management and treatment of special needs patients, conscious sedation, pediatric dental rehabilitation, hospital dentistry with children under general anesthesia, and interceptive orthodontics and currenty practices out of our Coral Springs and Pembroke Pines locations.

Dr. McCallum is currently a member of the American Academy of Pediatric Dentistry and the Delta Phi Sigma Dental Sorority. She is certified in Pediatric Advanced Life Support. Dr. McCallum is an avid reader. During her spare time, she enjoys spending time with her family and friends, dining on Caribbean inspired cuisine, a connection to her heritage.

Dr. Shasan William Liou

Pediatric Dentist

Dr. Shasan William LiouDr. Will Liou is a pediatric dentist who strives to provide the best possible experience for his patients. He believes that the enjoyable visits the children have will facilitate a positive attitude towards going to see the dentist and also motivate them to improve their oral hygiene at home. Dr. Liou is a native of Florida, born in Gainesville where he later moved to Orlando. He received his undergraduate degree in biomedical engineering at the Georgia Institute of Technology and later returned to his birthplace to receive his dental degree (D.M.D.)at the University of Florida. He realized that his passion was working with children and completed a three-year pediatric dental program at the University of California in San Francisco (UCSF). Dr. Liou received a certificate of Advanced Education in Pediatric Dentistry and a Master's degree in Oral and Craniofacial Sciences at UCSF. During his 3 years at UCSF, he received extensive training in hospital dentistry, oral conscious sedation, and working with special needs patients. Dr. Liou currently practices out of our Coral Springs and Pembroke Pines locations.

In his time during dental school and residency, he has participated in mission trips to Ecuador and the Dominican Republic, “Special Olympics”, and “Give Kids a Smile”. He is a big believer in community service and helping the underserved—he hopes to organize a trip one day back to Taiwan (his nationality) to provide dental services to the children there. He is PALS (Pediatric Advanced Life Support) certified and is also affiliated withthe American Academy of Pediatric Dentistry and the California Society of Pediatric Dentistry. In his spare time, Dr. Liou enjoys spending time with his wife and dog Bailey. He also enjoys playing and watching sports, especially the Florida Gators and Orlando Magic.

Dr. Ana Maria Mejia

General Dentist 

Dr. Ana Maria MejiaDr. Mejia is a dedicated and passionate dentist who loves interacting and helping people. She is committed to provide the best comprehensive and personalized dental treatment, putting patient’s care as her number one priority.

Originally from Colombia, Dr Mejia received her D.D.S degree from CES University in Medellin, in 2000.It has always been clear to her that she wanted to spend her live working with and helping patients. Therefore, after finishing an intense social service as a general dentist in a Community Hospital, she completed her pediatric dentistry residency in Colombia. During her final year of training, she did an academic rotation at Nova Southeastern University Dental School in Davie, Florida. At Nova, she attended all available academic conferences and worked closely with the pediatric dentistry students with whom she had the opportunity to improve her knowledge and experience in the dental field.

After moving to United States, Dr. Mejia completed two years of postgraduate education and received a certificate in Advanced Education in General Dentistry, at Florida Institute for Advanced Dental Education in 2015. Dr. Mejia is trained in Adult, Child, and Infant Life Support (BLS) and is member of the American Dental Association, and the Florida Dental Association. Dr. Mejia currently practices out of our Doral location.

Dr. Mejia is the proud mother of two kids and has been married for 12 years. She loves to spend time with her family and friends.

Dr. Sara Aza-Berardinelli

Pediatric Dentist 

Dr. Sara AzaDr. Sara Aza is a Pediatric Dentist who truly believes that the opportunity to give children a smile is the greatest treasure in the world. Dr. Aza was born in Lakeland, Florida and moved back to Barranquilla, Colombia in 1999 where she completed her 5 year Dental Training Program at Universidad Metropolitana. In 2000, she decided to come back to the states looking for better job opportunities and quality of life. By 2004 she had become a dedicated and energetic Registered Dental Hygienist and in 2007 she attended the University of Florida where she earned her degree in Dental Surgery.

Upon graduating with honors from UF, Dr. Aza moved to Puerto Rico to complete a 2 year Pediatric Dental Residency at the University of Puerto Rico. During her Residency, Dr. Aza provided comprehensive oral health care for the well child, medically compromised and special health care needs. She gained experience in complete oral rehabilitation under general anesthesia and oral sedation as well as child and infant life support (BLS). She is also a member of the American Dental Association and the Academy of Pediatric Dentists.

Dr. Aza feels strongly about community service and participates in Mission Trips to Colombia and Puerto Rico, has been part of community events such as “Give Kids a Smile” and is an active volunteer with non-profit organizations like “Fundacion Colombo-Americanos Unidos” and “Doral Prohealth.” In her spare time, Dr. Aza enjoys yoga, traveling and spending time with family and friends.

Dr. Khalid Mutawalli

Pediatric Dentist 

Dr. Khalid MutawalliDr. Khalid Mutawalli is a passionate and caring pediatric dentist. He loves coming to work every day to provide a positive experience for patients, parents, and the team. Dr. Mutawalli emits positive energy and is eager to help all patients and families in the community!

Originally from Egypt, Dr. Mutawalli received his dental degree from the historic Cairo University in Egypt. After graduating from dental school, Dr. Mutawalli moved to the United States and furthered his education at the elite University of Maryland School of Dentistry to pursue a 3 year residency in Advanced General Dentistry. While at the University of Maryland, he worked on several research projects that included pathogens related to the development and progression of dental caries in children. Dr. Mutawalli earned a Masters of Science Degree at the University of Maryland as a result of his research projects. His research was published in PLos Pathogens, a high impact scientific journal.

Dr. Mutawalli’s passion in helping children maintain optimal oral health lead him to complete another 2 years specializing in Pediatric Dentistry at Nova Southeastern University and Joe Dimaggio Children’s Hospital. His leadership and motivation to learn lead him to become the Chief Resident during his pediatric dentistry residency. During his residency, he received extensive training in behavioral management techniques. His overall goal is to utilize behavior management techniques effectively and safely to deliver dental care to pre-cooperative and uncooperative children. Sedation and Hospital dentistry are two of the many skills he learned while at Nova Southeastern University. He trained with some of the nation’s top Pediatric Board Certified Anesthesiologists at Joe Dimaggio and Broward General Hospital to provide dental rehabilitation for pediatric patients under general anesthesia.

Dr. Mutawalli trained at the Mailman Segal Center that specializes in children with special needs. He developed a strong passion in understanding children with sensory issues, ranging from children with mild hypersensitivities to children with severe autism.

During his free time, Dr. Mutawalli loves playing sports including soccer, basketball, and tennis. He loves to travel and learn about different cultures. Coming from a large family, he enjoys cooking and spending time with his loved ones.

Dr. Faisal Huda


Dr. Faisal HudaDr. Faisal Huda is an anesthesiologist with extensive experience in trauma, cardiac, and pediatric anesthesia cases. He received his medical education and degree at the University of Miami School of Medicine.

Dr. Huda completed his residency training in anesthesia at Jackson Memorial Hospital and UM Hospital, while much of his pediatric anesthesia training was at Miami Children's Hospital. He is well known in the community for his passion in providing the utmost care for his patients to ensure they are comfortable and pleased.

Dr. Huda will be bringing his experience and expertise in anesthesia to the American Pediatric Dental Group to provide sedation for our pediatric patients. He strives to provide excellent, compassionate patient care where patient safety always comes first.


In Alliance With:


Dr. Kistama Naidu


Dr. Kistama NaiduDr. Naidu is a Board Certified Orthodontist, who is committed to the pursuit of excellence in orthodontics. He received his undergraduate degree right here in South Florida, at the renowned University of Miami. Upon completion, he furthered his Studies at Barry University, obtaining his Master's in Biological Sciences. Dr. Naidu received his dental education and specialty in orthodontics at the prestigious Tufts University School of Dental Medicine in Boston, graduating at the top of his class.

Dr. Naidu dedicates himself to increasing patient comfort, reducing treatment time and providing the highest level of technology for precise and efficient treatments resulting in a beautiful healthy smile that will last a lifetime. The standard treatment time for braces is 24-30 months, however, by utilizing the latest orthodontic robotic technology such as SureSmile®, Dr. Naidu can reduce your time in braces by up to 40% (6-9 months). Along with SureSmile, Dr. Naidu offers a variety of treatment options to fit your lifestyle; traditional braces and clear braces, clear Invisalign, Invisalign Teen aligners, and Incognito Hidden braces, which are placed behind the teeth.

Dr. Naidu loves practicing orthodontics; it's not a job but a privilege to provide you and your family a great smile that will last a lifetime utilizing the latest innovations in orthodontics. Outside his practice, he enjoys playing basketball, scuba diving and is an avid fan of the Miami Heat and Hurricanes. Don't be surprised when you bump into him at the next home game!