Dr. Mac Garrison

Dr. Mac Garrison grew up in Pulaski, Virginia, and attended Hampden-Sydney College where he studied Biology. After moving to Richmond, he obtained his Doctor of Dental Surgery from the Medical College of Virginia School of Dentistry. He completed a General Practice Residency at Charlotte Memorial Hospital in Charlotte, NC. While in Charlotte, his wife gave birth to their daughter and upon completion of the program, Dr. Garrison decided to move to the beautiful Shenandoah Valley to raise his young family and set up a practice.
He has twice served as President of the Shenandoah Valley Dental Association as well as on numerous committees of the Virginia Dental Association. More locally, he founded the Harrisonburg-Rockingham Free Dental Clinic in 1994 and continues to treat Free Clinic patients. He also volunteered for Rockingham Memorial Hospital in the event of dental emergencies. As a volunteer ski patroller at Massanutten Resort for seventeen years, he treated injured skiers and taught Outdoor Emergency Care to ski patrol candidates.
In his free time Dr. Garrison enjoys snow skiing and mountain biking. He recently built a beautiful 12′ wooden dinghy, which he is learning to sail.

Professional Organizations and Memberships

• American Dental Association
• Virginia Dental Association
• Shenandoah Valley Dental Association
• Harrisonburg-Rockingham Dental Study Club
• Fellow in the American College of Dentists
• American Academy of Dental Sleep Medicine
• Master in the Academy of General Dentistry
• Millennium Institute for Advanced Laser Dentistry
• CEREC Doctors
• First Presbyterian Church
• Shenandoah Valley Bicycle Coalition

Dr. Evan Garrison

In 2017, Dr. Evan Garrison joined the family practice, allowing us to give our patients more attention to their needs and questions. Dr. Garrison has a special interest in surgery, replacing missing or broken teeth, and assisting geriatric patients with their changing oral condition.
Evan is the daughter of April and Mac Garrison. She grew up in Harrisonburg and pursued a degree in Economics and Asian Studies at James Madison University. While assisting at the Harrisonburg Free Clinic with her dad, she realized her desire to provide health care and decided to go to dental school.
She attended Virginia Commonwealth University/MCV School of Dentistry in Richmond for her Doctor of Dental Surgery degree. At VCU, Evan earned a scholarship of merit every year, held numerous leadership roles, and participated in many community service events. She traveled to Dominican Republic and Jamaica for dental mission trips and was selected by her professors for an externship in Qingdao, China. She spent three weeks over her winter break treating patients in a Chinese dental hospital.
Dr. Evan Garrison is currently serving as the President-Elect for the Shenandoah Dental Association. And like her father, she loves mountain biking and skiing. 

Professional Organizations and Memberships

• American Dental Association
• Virginia Dental Association
• Shenandoah Valley Dental Association
• Academy of General Dentistry
• International Congress of Oral Implantologists
• Delta Sigma Delta Community Service Dental Fraternity
• National Ski Patrol Alumni

Dr. Holly Legg

We are excited to welcome Dr. Holly Legg to our team as a third dentist. Dr. Legg is a native of Roanoke, Virginia, and a graduate of the University of Virginia. She went on to earn her Doctor of Dental Surgery degree from Virginia Commonwealth University School of Dentistry. Most recently, Dr. Legg practiced in Memphis, Tennessee while her husband completed his medical residency. She is a member of the Shenandoah Valley Dental Association, Virginia Dental Society, and the American Dental Association. Dr. Legg aims to improve the oral health of her patients and increase the confidence in their smiles by providing the highest quality of care. In her free time, she enjoys hiking, cooking, and traveling with her husband and two children.

Dr. Stacey Good

We are thrilled to welcome Dr. Stacey Good, DMD to our team. A 2011 Graduate of Tufts University School of Dental Medicine, Dr. Good has practiced in Massachusetts, Rhode Island, and Virginia since 2017. She specializes in comprehensive care and pediatrics and is passionate about volunteering and teaching or health. Dr. Good is a member of American Dental Association and the Virginia Dental Association. Outside of work, she enjoys kayaking, hiking, and exploring the Shenandoah Valley with her family.

Caitlin Michael

Practice Manager

With over 16 years of combined experience in the dental and medical fields, Caitlin brings a wealth of knowledge, organization, and heart to Garrison Family Dentistry. Her passion for dentistry and leadership shines through in everything she does — from guiding and developing the team to ensuring every patient experience and team interaction reflects the practice’s core values of compassion, connection, and growth. Caitlin loves what she does and takes pride in helping both patients and her team thrive. Outside of the office, you’ll find her on her family farm or spending time with her two boys — her greatest joy and inspiration.

Avery

Registered Dental Hygienist

Avery graduated from LFCC Dental Hygiene School in May 2022 and has been a dedicated member of the Grassion Family Dentistry team ever since. With three years of hands-on experience, she is passionate about creating a relaxed, stress-free environment for every patient. She especially enjoys working with children, bringing a fun and friendly energy to help make dental visits a positive experience. Outside the office, she loves baking, hiking, and skiing in the winter months. You’ll often find her spending quality time with her niece & family.

Lisa

Registered Dental Hygienist

Lisa joined our office in 2005. She enjoys learning about the latest dental health research, including the links between oral and systemic health. Lisa strives to provide patients with not only a positive dental experience but also personalized strategies for maintaining their optimal oral health. She loves to read, play the piano, and spend time with family and friends.

Tammy

Registered Dental Hygienist

Tammy started with us in early 2020. Happy to be back in the office with clients, Tammy works for our office as a PRN hygienist and loves helping patients create and maintain healthy smiles. This mom of two adult children and two cats likes to travel, read, garden, walk, and hang out with her spouse and family. We all love Tammy’s laugh. Her positive outlook and happy conversations keep everyone in good spirits.

Kristina

Registered Dental Hygienist

Kristina earned her degree from Penn College in Pennsylvania in 2016 and became part of our team in 2024. She’s passionate about providing detailed cleanings and helping patients feel improvements. Beyond creating beautiful smiles, Kristina also enjoys capturing them—she works as a wedding videographer on the weekends. In her free time, she loves sipping coffee, exploring new places with her husband, playing pickleball, and hosting Bible study with her friends.

Sidney

Registered Dental Hygienist

I am a Staunton native and a proud graduate of West Virginia University, where I earned my Bachelor of Science in Dental Hygiene. I am also a certified ACE Group Fitness Instructor and enjoy staying active through fitness and wellness. Outside of work, I love reading and continually seeking opportunities to expand my knowledge in the field of dentistry. As a loyal Mountaineer fan, you can often find me cheering on WVU basketball and football with my fiancé, Mason in my free time.

Gracie

Dental Assistant

Gracie graduated from Massanutten Technical Center’s dental assisting program in 2022. She started here as our summer intern, and we loved her so much we insisted that she stay. She is compassionate and sensitive to the needs of patients, and she hopes to help everyone feel comfortable during their visit. She learns like a sponge and has demonstrated great skill and flexibility. In her free time she enjoys camping, kayaking, and fishing.

Siarah

Dental Assistant

Born and raised in Churchville, VA, Siarah graduated from Valley Career and Technical Center in 2018 with a certificate in the Dental Careers program. She takes pride in assisting the doctors and ensuring patients feel comfortable and at ease during their visits. When she isn’t chairside, you’ll often find her at the front office, lending her support to help keep the practice running smoothly. Outside of work, Siarah loves spending time with her little boy, who is her pride and joy. Together, they share a passion for cattle, and their weekends are often filled with racing and cattle shows.

Virginia

Dental Assistant

Virginia was born and raised in Oaxaca, Mexico, and speaks three languages: Mixteco, Spanish, and English. Her passion for dentistry and desire to be a role model for her children led her to pursue a career as a dental assistant. She started with Garrison Dentistry in 2019, not long after she graduated from Massanutten Technical College. She loves to interact with patients and make them feel comfortable. She loves taking x-rays (and she is quite skilled). In her free time she enjoys gardening, traveling, and playing with her kids.

Kelcie

Treatment Coordinator

Kelcie’s journey in the dental field began when she graduated from the ATS Dental Assisting program in 2014, and she became a valued member of our team in 2016. She is certified in Radiology through Lord Fairfax and has also attended and earned certification in Implant Coordination at the Triangle Dental Institute. Her passion for growth and education drives her to constantly expand her knowledge—whether it’s mastering the art of customizing crown color, diving into implantology, or exploring administrative office professional skills. These efforts have led her to her current role as Treatment Coordinator, where she works upfront leading the team and helping patients receive the best care possible. Always seeking out new learning opportunities, Kelcie’s dedication ensures she’s always ready to provide the latest and most effective treatments. When she’s not at work, you’ll find Kelcie camping, tending to her garden, playing with her dog, or making memories with her husband.

Arin

Patient Care Coordinator

Arin grew up in Staunton and now calls Rockingham County home. With over five years of experience in the dental field—including her time as a dental assistant—she currently serves as an essential part of our front office team. Arin takes pride in making every patient feel welcome, comfortable, and cared for, and she loves being an integral part of helping the practice run smoothly. Outside the office, Arin enjoys hiking the beautiful trails of the Shenandoah Valley and lifting weights, keeping her energy strong both in and out of the office.