Meet Our Staff

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Alex Brennan, DC


Dr. Alex Brennan earned his Bachelor of Arts degree from St. John’s University in New York. He then went on to graduate from Life University in Atlanta, Georgia with a Doctorate in Chiropractic. For two years he assisted the team doctors in caring for the athletes of the schools hockey team, and worked for the chiropractor of the Atlanta Falcons upon graduating.

Dr. Brennan has quite an accomplished athletic background. He earned a full four year athletic scholarship to St. John’s University and played on two ACHA national championship hockey teams while attending Life University.

His vast athletic experience has afforded Dr. Brennan an acute understanding of sports related traumas and injuries. While athletics have been an important part of his life, family care and wellness are the major focus points of Brennan Chiropractic. Dr. Brennan currently travels thousands of miles each year to keep abreast of the most current and up to date chiropractic techniques and practice related seminars. He prides himself on educating and serving as many families as possible, while providing them with the best possible chiropractic care.


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Emily Brennan


Emily is our resident Nutritionist, with years of experience. We’d love to tell you more about Emily, but she’s currently still working on her biography — check back soon for more details.


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Dayana A. Hering

Office Manager

Dayana was born and raised in Ecuador, SA but spent most of her life on Long Island, New York. She and her family relocated to North Carolina the summer of 2010. Married to the love of her life, whom she met through her brother, Paul and Dayana celebrated their twentieth wedding anniversary in September 2012. They are the proud parents of three teenagers Christopher, Thomas, and Emily.  Although she will always be a New Yorker at heart, she is pleased to call Cary her home. Dayana’s previous work experiences include managing a bride’s maid shop; front desk work at a chiropractor’s office; and over 17 years working in the insurance industry, first as an administrative assistant then as a No-Fault claim adjuster, followed by a catastrophic claim adjuster for New Jersey Claims. She joined the Brennan Chiropractic Family in October 2010 where her fluency in Spanish allows her to further aid our community.