Where healthy mouths and beautiful smiles lead to better lives.

Dr. Holly Hamamcy

Dr. Holly Hamamcy grew up in Austin where she attended the University of Texas. She excelled academically, being on the Dean’s List and received two degrees, graduating with high honors in both. She received her dental degree from the University of Connecticut School of Dental Medicine where she earned a “most Clinically Significant” award for her research on all-ceramic crowns and “Alumni and Friends in Research” award. Dr. Hamamcy is committed to staying up to date in the ever-changing field of dentistry and is a frequent participant in continuing education via formal courses and self directed learning. She loves to see the smile on the face of her patients when they have have had a great experience at her practice. The combination of challenging technical skills and wonderful patient relationships is truly what she enjoys the most and keeps her committed.

Dr. Hamamcy has always believed in being involved in her community and profession and has served in many roles: Chair of the Peer Review Committee for the Capital Area Dental Society; Alternate Delegate of the Texas Dental Association; Vice President of the Texas Association of Women Dentist; Editor and President of the Women of Austin Dental Study Club; Member at Large of the Central Texas Academy of General Dentistry; Volunteer Speaker at The Learning Experience and Hill Elementary about dentistry and oral health; and volunteer for oral screening on children enrolled in Head Start Programs around Central Texas and Connecticut.

When Dr. Hamamcy is not bringing smiles to her patients’ faces, she loves to spend time with her husband, Ryan, and daughter, Leila, her puppy and her niece and nephew. Her interests include reading, kayaking, paddle-boarding along with socializing with friends. What is life without great friends and family!

Dr. Brandon Johnson

Dr. Brandon Johnson was born and raised in Northern Virginia. His high school lacrosse and football coach, who was a dentist, impacted Brandon’s life by his generosity and willingness to give his time to others. He encouraged Brandon to excel academically as well as athletically and pursue a career in dentistry.

Dr. Johnson attended James Madison University where he played college football and graduated Cum Laude with a degree in Biology. He received his Doctor of Dental Medicine degree from the University of Pennsylvania, graduating Magna Cum Laude. After graduation, Dr. Johnson practiced dentistry in Columbia, South Carolina, before relocating to Central Texas. With the profession becoming ever more technologically driven, his training and experience with the latest and greatest in the digital world is a wonderful asset to any practice. Nonetheless, Brandon’s driving force is to earn and keep the trust of every patient by carefully assessing what needs they have and meeting them, skillfully exceeding their expectations.

Outside of the office, Dr. Johnson is a workout devotee, a football fan and a beginning golfer. Both he and his wife Cornelia, who is also a dentist in the U.S. Army, have taken up golf recently and enjoy time together on and off the course.

Dr. Tatyana Haddock

Dr. Tatyana Haddock was born and raised in St. Petersburg, Russia. Influenced by her aunt and uncle who were both dentists, she pursued a degree in nursing. After completing that degree, she went on to study dentistry at St. Petersburg First State University in Russia. In 1991, Dr. Haddock moved to the United States and furthered her training, graduating with honors from San Antonio College and then completed her dental degree, graduating Magna Cum Laude from the University of Texas Dental Branch at San Antonio Health Science Center.

Tatyana is a firm believer in continuous learning and prioritizes every opportunity to further her knowledge via formal educational courses, personal reading and using a variety of web-based options. Her special interests include cosmetic dentistry, TMJ and occlusion, removable prosthodontics and Invisalign orthodontics. She has received numerous awards and accreditations from the Texas Academy of Cosmetic Dentistry, the Las Vegas Institute for Advanced Dental Studies and other prestigious organizations. Throughout her years in private practice, Dr. Haddock developed a passion for the health and function of natural dentition and the preservation of the beauty of one’s smile.

Dr. Haddock lives in Round Rock, Texas, with her husband Charles and their six dachshunds and cat. She is an active yoga practitioner, animal lover, obsessive reader, and health enthusiast, as well as a painter and photographer.

Our Office

15534 Ranch Rd 620, Ste 300
Round Rock, TX 78717

Contact Us

15534 Ranch Rd 620, Ste 300
Round Rock, TX 78717

p. 512.580.9200
f. 512.580.9201