Meet Our Team

Modern Dentistry in a Comfortable Environment

Providing compassionate, gentle dentistry is the heart of our practice. For more than 30 years, McQuary Dental has been dedicated to providing each member of the family with the personalized dental care that they deserve. Our professionals go above and beyond in order to provide the best possible services to our patients. We do our best to put our patients at ease and make visiting us as enjoyable as possible. We are meticulous and provide the same level of care as we would give our very own families.

Everything we do at McQuary Dental is with you in mind. We love to have fun with our patients and hope that we will be able to form lasting friendships as we help maintain your smile. We always provide honest, straightforward advice and strive to keep you informed every step of the way.

Doctors

Meet Dr. Valentina Garcia Villada DMD

Dr. Valentina is a general dentist originally from Cali, Colombia, and was raised in Southern California. She earned her Doctor of Dental Surgery (DDS) degree from Universidad Iberoamericana in Santo Domingo, Dominican Republic. After completing her dental training abroad, she continued her professional journey in the United States, where she earned her Doctor of Dental Medicine (DMD) through the Advanced Standing Program at Tufts University School of Dental Medicine in Boston, Massachusetts.

Dr. Valentina is deeply passionate about comprehensive patient care and values the connection between oral health and overall well-being. She has a strong interest in clinical research, particularly in the areas of prevention and oral health education, and is dedicated to promoting long-term health outcomes through patient-centered strategies.

Outside of dentistry, Dr. Valentina enjoys spending time at the beach and cooking fresh meals from scratch — activities that reflect her commitment to health, wellness, and balance in everyday life.

Meet Dr. Nathaniel Kupperman DMD

Nathan Kupperman, DMD is a Florida State University & NSU Dental alum. He has been practicing in Tallahassee, Florida for the last 10 years. Dr. Kupperman is a multi-faceted clinician with a focus on surgery, dental implantology, and cosmetic smile makeovers. He is an avid surfer, snowboarder and golfer.

Meet Dr. David W. Gemmell DDS · Oral & Maxillofacial Radiologist, Implant Dentist and Lecturer

Dr. David W. Gemmell, DDS, is a distinguished Oral & Maxillofacial Radiologist with over a decade of experience providing compassionate, life-changing dental care. A proud Florida Gator, Dr. Gemmell holds a highly prestigious certification in Oral and Maxillofacial Radiology (OMFR) — an elite distinction achieved by only 0.1% of dentists.

With a profound focus on All-on-4/All-on-X, dental implants, extractions, bone grafting, and sedation, Dr. Gemmell has successfully transformed lives by completing over 1,000 full-arch restorations. His exceptional surgical mastery has made him a sought-after educator who actively teaches other implant surgeons in the field.

A passionate advocate for lifelong learning, Dr. Gemmell has accumulated over 1,000 hours of continuing education. By combining his extensive surgical expertise with pioneering work in dental AI and precise radiographic interpretation, he ensures exceptional patient care, unparalleled comfort, and outcomes that make a lasting impact on the communities he serves.

Notable Qualifications & Accomplishments

Proud Florida Gator
10+ years practicing advanced dentistry
Over 1,000 full-arch cases completed
10,000+ implants placed
Among the 0.1% of dentists to hold the OMFR distinction
Over 1,000 hours of continuing education completed
Teaches other implant surgeons across the country

Meet Dr. Rilie Gonzales

Originally from Stuart, Florida, Dr. Rilie has always considered Florida home. She loves being near the water and taking any opportunity to get back to the beach. After living in Colorado for several years, she developed a love for the mountains as well and acquired a mini Goldendoodle who loves everyone he meets. She is now working on turning him from a mountain dog into a beach dog.

Dr. Rilie completed her undergraduate education at Florida State University before earning her dental degree from the University of Colorado School of Dental Medicine. She then completed a one-year General Practice Residency at Denver Health Hospital, where she gained valuable hospital-based training and experience providing comprehensive care.

She especially enjoys restorative and esthetic dentistry and the opportunity to make a meaningful difference in her patients’ lives — whether that means relieving pain, restoring function, or helping someone feel more confident in their smile. She believes great dentistry starts with education and communication and strives to create an open, welcoming environment where patients feel comfortable discussing their concerns, goals, and desires. Her goal is for every patient to leave feeling more informed about their oral health and confident in their care.

Outside of dentistry, Dr. Rilie loves traveling, exploring new places, and trying new restaurants and cuisines. Most of all, she enjoys spending time with her friends, family, and her dog.