Cosmetic Dentistry Staff

All professionals at Bloomfield Avenue Dental Associates maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

Dr. Sonia Barbosa-Ruiz

Cosmetic Dentist in Drexel Hill, PA

Bloomfield Avenue Dental Associates

Dr. Barbosa-Ruiz was born and raised in Bogota Colombia area. She attended Colombia Dental School in Bogota Colombia where she earned her DDS. She moved to the United States and in 1991 received her Preceptorship in Periodontics at the University of Texas in Houston. This program enhances the preceptor's knowledge necessary for evaluation and treatment of patients with periodontal diseases and implant needs. She was a clinical instructor for both the University of Texas Dental Branch and the University of Pennsylvania School of Dentistry. She continued her education at the University of Pennsylvania Dental School in Philadelphia earning her DMD in 1994. She has remained in the Philadelphia area establishing her private practice in Drexel Hill in 1998. She is fluent in both English and Spanish.  Read More...


Dr. Suzanne Ahnquist

Born in South Philly and attended Breqy Elementary. Moved to Medford Lakes New Jersey and graduated from Lenape Regional High School. Attended Valparaiso University and graduated with honors with a BS in biology and chemistry. Received a graduate degree in microbiology from Southwestern University. Worked as a microbiologist for 10 years prior to enrolling at University of Kentucky College of Dentistry. Practiced near Lexington, Kentucky until 2012 and then moved to Drexel Hill after selling her practice. Has been working on the Mainline, Lancaster and Drexel Hill as an associate dentist since. Read More...


Dr. Philip Shin

Dr. Shin was born in Honolulu, Hawaii, and attended the Hahaione Elementary School. He moved to South Korea, and returned to the state of California, graduating from Davis Senior High. Then, He attended Cornell University with Bachelor's degree, completed a Master's degree at University of Cincinnati, and finally graduated from Columbia University Dental School in New York City, receiving Doctor of Dental Surgery (DDS) degree. He moved to Drexel Hill, PA in 2016, after practicing in a private office in NJ. He completed his Implantology Continuum curriculum at Columbia University from 2016-2017, and is a member of the International Congress of Oral Implantologists (ICOI). Read More...


Dr. Joseph Costa

Dr. Costa grew up in the Chicago suburbs where he attended elementary and high school. After high school, he moved to Florida where he attended Nova Southeastern University. Dr. Costa graduated with a bachelor of science degree in biology with a minor in chemistry. While an undergrad, he was a member of the academic honors fraternity, Order of Omega and received a Citation of General Honors for his academic achievements.  Read More...


Stephanie Aaron RDH

Stephanie Aaron is our registered dental hygienist. She is a Harcum College graduate and has been a part of our office since 2015. While growing up, Stephanie always enjoyed visiting the dentist, which is what eventually led her to pursue a career in Dental Hygiene. Stephanie's favorite part of her job is working with each patient to find a home care routine that works best for them and seeing their improvements upon return. When Stephanie is not working in the dental field, she is teaching a variety of dance classes to young kids.