About Your Dentist

Pablo Sierra, DMD

"Dentistry is one of the most important health professions. It helps patients physically, psychologically, and socially. Effective dental care ensures proper function and a healthy smile improves self-image and a sense of self-worth."

My Mission

“I treat every patient like a family member.  I will always present the best options for improving the oral health of my patients. I believe in working with my patients in order to achieve their goals and keep them in optimal oral health. “


General Practice Residency II
University of Rochester Eastman Dental Center – Rochester, NY

General Practice Residency I
Faxton St. Luke’s Healthcare – Utica, NY

Doctorate of Dental Medicine
University of Puerto Rico School of Dentistry – San Juan, Puerto Rico

Continuing Education & Professional Memberships

Dr. Sierra is an active member of the American Dental Association, Central Florida Dental Association, Academy of General Dentistry, International Congress of Oral Implantologists, and the American Academy of Dental Sleep Medicine. 

Dr. Sierra has successfully achieved Fellowship status in the International Congress of Oral Implantologists and Master status in the Academy of General Dentistry. 

Fellow of the International Congress of Oral Implantologists (FICOI)
In order to be awarded Fellowship status, Dr. Sierra has completed 100 hours of continuing education in implant dentistry and successfully submitted 20 cases for review.  As a Fellow of the International Congress of Oral Implantologists, Dr. Sierra has demonstrated his commitment to attaining the knowledge and technical skill necessary to provide his patients with the most innovative and effective implant services in dental medicine.

Master of the Academy of General Dentistry (MAGD)
The Academy of General Dentistry (AGD) Master status is presented to dentists who are committed to pursuing professional excellence and providing the highest quality of dental care. In order to receive this distinction, Dr. Sierra completed over 1,100 hours of continuing dental education (400 of those hours in hands-on courses) and passed an exam equal in difficulty to board certification. As an AGD Master, Dr. Sierra has joined an elite group within the dental community who understand that great smiles and good oral health for their patients are the result of going above and beyond basic requirements. Mastership symbolizes excellence in the dental profession and a commitment to providing exceptional patient care.

“Becoming an AGD Master means a dentist has taken part in some of the most rigorous continuing dental education programs today,” said AGD President, Connie White, DDS. “Less than 2 percent of all dentists have achieved this designation and we are proud to honor Dr. Pablo J. Sierra for his commitment and dedication to providing his patients with advanced and exceptional oral health care. He is exceeding industry requirements and paving a path of success, distinguishing himself professionally amongst his peers, and exemplifying his allegiance to the dental community.”

Life & Hobbies

In his free time, Dr. Sierra enjoys water activities, including scuba diving, paddleboarding, kayaking, and boating with his sons. He loves traveling, attending concerts, plays, operas, and festivals, as well as running 5K’s, going to amusement parks, museums, cooking, and volunteering on mission trips.

Nastassia Shields, DMD

"Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do." - Steve Jobs

My Mission

“I strive to deliver the highest quality of care by first understanding my patients’ needs and desires and then working collaboratively to optimize their oral health. I look forward to serving my patients with empathy, compassion, and an obsessive attention to detail.”


General Practice Residency
Faxton St. Luke's Hospital - Utica, New York

Doctorate in Dental Medicine
Nova Southeastern University - Ft. Lauderdale, Florida

Master of Science in Microbiology
Morehead State University - Morehead, Kentucky

Bachelor of Arts in Biology
Smith College - Northampton MA

Life & Hobbies

After training and working for several years in the northern United States, Dr. Shields truly appreciates the sunshine and warm weather in Florida. She believes in total-body wellness and strives to maintain a healthy mind, body, and spirit.  In her free time, Dr. Shields enjoys jogging, strength training at her gym, and exercising her mind with a good book.

Sonia Rivero Fernandez, DMD

"A smile is a curve that sets everything straight!"

My Mission

“My mission in dentistry is to provide the best possible oral health care to each and every patient I see.  I look forward to working collaboratively with my patients by building long-lasting relationships based on mutual trust and respect.  I am passionate about improving my patients' lives by relieving their pain, restoring their dental health, and helping them enjoy the many benefits of a bright, beautiful smile.”


Doctorate of Medicine in Dentistry
LECOM School of Dental Medicine, Lakewood Ranch Campus - Bradenton, FL

Bachelor of Science in Cellular and Molecular Biology
The University of South Florida – Tampa, FL

Professional Memberships

Dr. Fernandez is a member of the American Dental Association, Florida Dental Association, and the Hispanic Dental Association.

Life & Hobbies

In her free time, Dr. Rivero enjoys watching movies with her family, exploring nature, and taking road trips. She also enjoys dancing and discovering new and interesting music. Dr. Rivero is absolutely passionate about traveling to new places and exploring their culture, art, cuisine, and fashion.