Meet Your Team

Nina Ponce

Registered Dental Hygienist
Nina graduated from the University of Michigan with a BS in Dental Hygiene and has over a decade of continuing education courses to add to her expertise. At the South Capitol Smile Center, she doesn’t just help maintain your teeth, but also educates you on how to better care for your smile.

Nina has a son and when she’s not at the office, she enjoys reading, learning, gardening, spending time in nature, and playing with her son.

Michael D. Watts

Dental Assistant
Michael assists Dr. Samaddar chairside in his capacity as an Advanced trained Dental Assistant. He regularly completes continuing education courses to add to his expertise. Around the office, he’s always in a great mood and helps keep the flow going. He has been in the dental field for over 15 years.

Michael likes to garden, paint, and work on cars in his spare time. He is married with one son.

Angi Phelan

Business Manager
A long-time team member, Angi helps the office run smoothly as the Business Manager. Over the last 16 years, she has completed many continuing education courses to add to her expertise. She is unique, in that she has been both a dental assistant and a member of the administrative team during the course of her career.

In her spare time, she loves cooking and baking, dancing and live music, attending movies and comedy shows, and spending time with her family.

Cristal Diaz

Financial & Insurance Coordinator
As the South Capitol Smile Center’s Financial and Insurance Coordinator, Cristal is the go-to resource for navigating the sometimes-confusing world of insurance claims. She has worked exclusively in the dental financial world since 2007.

When she’s not assisting patients at the office, Cristal likes spending time with her two nieces, Tiffany and Kyara, as well as with her dog, Rex.

Paola Santiago Lopez

Business Team
The newest member of the South Capitol Smile Center Team, Paola graduated from High Point High School and studied at Prince George’s Community College. She regularly completes continuing education courses with her team.

Paola has two sisters, a brother, and three dogs. In her free time, she enjoys watching movies and listening to music.