our team

Dr. Chelsea Vallario

Chiropractic Physician/Owner

Post-Graduate Education, Techniques, and Certifications:
  • National Board Certified in Chiropractic and PhysioTherapy
  • Licenses held in South Carolina, North Carolina
  • Chiropractic Extremity TMJ, Shoulder, Elbow, Wrist, Gait, Orthotic, Global, Hip, Knee, Foot, Physical Therapy
  • Certified Kinesio-Tape Practitioner
  • Certified Golf Level 1 TPI Provider Titleist Performance Institute
  • Certified Graston Basic Technique
  • Cox Flexion/Distraction Technique
  • Thompson Technique
  • Class IV Therapeutic Laser Certification
  • SP Foundational Nutrition Completion
  • Taping Techniques and Sports Medicine
  • Shoulder Treatments to Avoid Surgery

Dr. Chelsea Vallario is the head Chiropractic Physician and owner of Athlete Recovery & Chiropractic Health. She started this clinic shortly after moving to York County, SC in 2017. She strives to provide movement-based medicine to Rock Hill and her surrounding community.

She has traveled the country to achieve her education and career goals. She was born and raised in the heart of the Rocky Mountains in Glenwood Springs, Colorado. Being a multisport athlete her entire life, she naturally pursued a health- and sports-based education. With her love for sports and activity of all kinds, she was drawn to North Carolina in order to complete her Undergraduate degree. Dr. Vallario studied Kinesiology and Human Physiology at the University of North Carolina – Charlotte. She completed her undergraduate degree in three years allowing her to immediately begin her Doctorate program in St. Louis, MO. She has earned both a Bachelor of Science degree in Human Life Science, and a Doctorate degree in Chiropractic from Logan University (St. Louis, MO).

Dr. Vallario’s love for chiropractic began at age 16 after suffering from severe shin splints and debilitating knee pain to the extent of nearly ending her young athletic career. After a number of physicians were unable to explain or treat the pain, she was referred to a local chiropractor. Finally, someone was able to explain the source of her pain and mechanical dysfunctions causing it. She was treated accordingly and taught exercises to prevent it in the future. Within two weeks she was back on the field pain free for the first time in years.

Building on her positive personal experience, becoming a Doctor of Chiropractic aligned perfectly with her passion for helping others in both health and performance. Dr. Vallario is eager to provide the highest quality, proactive healthcare to her community of Rock Hill, SC.

Previous Team Chiropractor and Group Involvement:
  • Mizzou University Sports, MO
  • University of Greeley, CO Club Baseball
  • Boulder Athletic Club Volleyball, CO
  • Previously worked with members of the Denver Broncos and Colorado Rockies
  • Team Physician for Charlotte Junior Rugby Association

Dr. Vallario is a proud member of the following sports associations:

Dr. Kyle Geer

Chiropractic Physician

Post-Graduate Education, Techniques, and Certifications:
  • National Board Certified in Chiropractic and PhysioTherapy
    Licenses held in South Carolina, North Carolina
    Chiropractic Extremity Shoulder, Elbow, Wrist, Hip, Knee, Foot
    IASTM Technique
    Cox Flexion/Distraction Technique
    Thompson Technique
    Class IV Therapeutic Laser Certification
    Taping Techniques and Sports Medicine
    Maternity and Infant care (Prenatal and Postnatal)

Dr. Kyle Geer has been in practice as Doctor of Chiropractic since 2016. He graduated Summa Cum Laude and Valedictorian of his class at Sherman College of Chiropractic in Spartanburg, SC. While there, he also received the Academic Excellence Award, as well as honors for his time as an XRI (X-Ray Intern) and ACE Intern (Academy of Chiropractic Excellence). While in school, he was trained in Applied Kinesiology, as well as pin and stretch, taping, movement screenings. 

In addition, Dr Kyle took on extra coursework that focused on specific techniques, like Webster, for pregnant women and young children. His approach to caring for expecting mothers (prenatal care) includes techniques designed to help with round ligament pain, lower back pain, abnormal pelvic positioning, and acid reflux.

Prior to chiropractic college, Dr. Kyle attended UNC Charlotte where he graduated Cum Laude with his bachelor’s degree in Exercise Science. This background was the start of Dr. Kyle’s fascination with athletic function and the performance of the human body.

Dr. Kyle is passionate about helping athletes of all types to obtain their best functional performance. He is dedicated to working alongside patients in their health and fitness journey, focusing on injury prevention by establishing healthy patterns that can be maintained. He firmly believes that one must look at and treat the body as a whole. He focuses on treating the body in a kinetic chain, utilizing chiropractic manipulation and soft tissue mobility with a strong support of rehabilitative and corrective exercises.

Dr. Kyle now lives in Rock Hill, SC with his wife, Courtney, and their two daughters, Lily and Eden. He enjoys running, having competed in several half marathons and frequently in 5k races, as well as swimming, volleyball, and weight training.

Dr. Regan Riddle

Chiropractic Physician

Post-Graduate Education, Techniques, and Certifications:
  • National Board Certified in Chiropractic and PhysioTherapy
    License held in South Carolina
  • Instrument Assisted Soft Tissue Mobilization
    Activator Technique
    Thompson Drop Technique
    Trigger Point Therapy
    Extraspinal Adjusting

Dr. Regan Riddle is a Chiropractic Physician who strives to educate and adjust families toward optimal health through chiropractic care.

She graduated Summa Cum Laude and Valedictorian of her class at Palmer College of Chiropractic, Florida. During her time at Palmer College of Chiropractic, she strove to learn many different techniques in order to provide the best care to her patients. These elective courses included Thompson Drop, Activator, IASTM, Flexion/Distraction, and trigger point.

During her undergraduate studies, she attended Millsaps College in Jackson, MS and graduated with a Bachelor of Science, with minors in both psychology and chemistry. She has been a multisport athlete all her life playing both basketball and volleyball. While at Millsaps College, she played four years of collegiate volleyball. This passion for athletics led her to pursue a career in health and wellness.Dr. Riddle has been involved in chiropractic care since she was born. She was adjusted at a week old and thereafter consistently throughout her life. She has seen the benefits that chiropractic care can make through her life and the lives of her family.

She is an avid runner, beach lover, and life-long learner. She has a passion for travel and has had the opportunity to travel to 8 different countries.

The chiropractic profession has allowed her to pursue her ultimate passion of helping others. Dr. Riddle is excited to provide the community of Rock Hill and the surrounding areas with the highest standard of care.

Mikayla Shook

Licensed Massage & Bodywork Therapist

Post-Graduate Education, Techniques, and Certifications:
  • Graston Basic Technique
    Certified Stationary Cupping and Fire Cupping
    Hot Stone Massage
    Sports Massage
    Prenatal Massage
    Class IV Therapeutic Laser Certification

Mikayla Shook is a Licensed Massage & Bodywork Therapist. She was raised in Rock Hill SC, where she graduated from Rock Hill High in 2016. Immediately after high school, she began Culinary school. After a year of culinary, she found her true calling in Massage Therapy. 

Mikayla’s interest in massage began when her mother developed Lymphedema and chronic pain in her leg after receiving multiple surgeries. Mikayla researched the benefits and different modalities of massage and she was sparked to learn more. About a year later, she graduated from Southeastern Institute as a Student Ambassador with perfect attendance and a 4.0 GPA.

Mikayla has found her passion in helping others attain a better quality of life. She specializes in Deep Tissue, Prenatal, Swedish Massage, and Focused Therapeutic Bodywork. She also offers hot stones and cupping. However, she is constantly continuing her education, learning new techniques, and improving modalities to make sure she is bringing her very best to her clients at every session. 

Brittany DeRienzo

Licensed Massage & Bodywork Therapist

Post-Graduate Education, Techniques, and Certifications:
  • Practical Cupping 
    Graston or Gua Sha 
    Deep Tissue
    Massage for lower back and pelvic pain
    Laser Therapy trained

Brittany DeRienzo is a Licensed Massage Therapist. Brittany has always loved massage, and eastern medicine approach to health, by treating the body and mind so that it can heal and restore itself. She has been a Massage Therapist for 9 years and has worked in a variety of settings, including luxury spa, medical settings which require deep tissue work, and providing chair massage to tired travelers at the airport. 

Brittany’s mission is to show how manual therapy can enhance one’s quality of life through the reduction of stress and pain. 

Her goal is to provide each client with the bodywork required to enjoy a quality lifestyle. She also strives to teach each client the benefits of maintenance care in order to maximize the long-term benefits of a healthy, pain-free body.

Amanda Acevedo

Office Manager

Amanda attended school for Fashion Marketing and Management. She has travelled all around North Carolina in the retail Industry including Atlanta, Georgia. She took some time off to live nomadically in the great mountains of North Carolina and in 2020 Amanda moved back down the mountain to enjoy her life back in the city with her family, two giant puppies and little old cat.  

Amanda is our super woman that has many super powers. She is your go to girl for billing, scheduling, or recommendation for a great place to hike.

When Amanda is not working she is either planting flowers, crafting/sewing, or hanging out with her family and pets.

Amanda can be a little quiet or timid at first but not to worry, there is a lot of spunk in her and she is a joy to be around.

Ashlee Wittekind

Events and Marketing Coordinator

Ashlee graduated from SUNY Brockport in 2010 with a degree in History. She moved to The Carolina’s after graduation and has been a resident of Rock Hill since 2018. Ashlee and her husband welcomed their baby boy in August of 2021, a week after closing on their dream home. 

Ashlee has a background in Sales and marketing and is looking forward to using those skills to benefit the practice. She loves greeting everyone who walks through the door with a smile and wants to add a little happiness to everyone’s day. 

In her free time, Ashlee enjoys baking cookies and spending time with her son and husband, as well as her bulldog Bogart. 

Kendra Pence

Graphic Designer/Branding Specialist

Kendra graduated from Full Sail University with a Bachelor’s degree in Graphic Design. In 2011 she moved to South Carolina to be closer to family and friends. Since then she has gotten married, moved multiple times, adopted some dogs, bought a house, and had three adorable little boys that challenge her and make her laugh everyday. 

Kendra has been with the practice since 2018. As the Graphic Designer/Branding Specialist she spends her time on the back end of things, making sure everything is running smoothly and your experience here at Athlete Recovery and Chiropractic Health is second to none.

She enjoys spending her time running her business, working on her fixer-upper house, being outdoors, visiting friends and hanging out with family.


Monday: 7 AM – 7 PM
Tuesday: 7 AM – 7 PM
Wednesday: 7 AM – 7 PM
Thursday: 7 AM – 7 PM
Friday: 7 AM – 7 PM


Office: (803) 329-8266
Fax: (803) 369-7301


1661 Celanese Road
Rock Hill, SC 29732