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Dr. Blair Spiller, D.C.

Doctor of Chiropractic and

Owner of Holistic Chiropractic and Wellness, Inc.

Dr. Blair specializes in prenatal and pediatric chiropractic care. She is certified in Webster technique and has a passion for serving the community to reach their optimal potential. She is proud to bring her Holistic Chiropractic and Wellness practice to the Austin, TX community. Dr. Blair has a personal passion for chiropractic care, which began during high school after suffering from severe rib pain that prevented her from living the active life she was use to. This was when she visited a Chiropractor herself for the first time. The experience and journey back to health and wellness ignited a desire in her to help others heal through chiropractic care. When she entered chiropractic school, she began to develop the belief that entire families can reach their optimal health through chiropractic care, and believes that people of all ages can benefit from removing interference to their spine and nervous system.


During chiropractic school, Dr. Blair became Founder and President of the Pediatric and Pregnancy Chiropractic Club. This blessed her with the opportunity to have several mentors within the profession of Chiropractic Pediatrics. While completing her chiropractic internship, she worked at a wellness office that focused on pediatric and pregnancy care in Dallas, TX. In 2014, she graduated from chiropractic school and continued working at the wellness practice. She now specializes in prenatal chiropractic care and pediatric detoxification programs. Later, she relocated to Austin, TX to continue her career.

Dr. Blair is trained and experienced in:

  • Spinal Corrective Care

  • Advanced Nutritional Diagnosis

  • Prenatal and Pediatric Care

  • Detoxification Programs

  • Pettibon Systems

  • Cranial-Sacral Work

  • Gentle, Corrective Adjustments

  • Webster Technique

  • Health and Wellness Coaching

  • Spinal Rehabilitation

  • Brain Balance Therapy


Dr. Blair earned her B.S. degree in Chemistry at The University of North Texas in 2010. The following year she earned her B.S. degree in Anatomy at Parker University in 2012, as well as her certification in Applied Kinesiology. A year later she earned her B.S. degree in Health and Wellness at Parker University and her certification in Webster Prenatal Technique from the International Chiropractic Pediatric Association. In 2014, she graduated from Parker University with her Doctor of Chiropractic degree and certification in Pediatric Chiropractic Care. Her continued education is very vast and includes:

  • Functional Nutrition

  • Fundamentals of Functional Blood Chemistry

  • Mastering Functional Blood Chemistry

  • Mastering Brain Chemistry

  • Gluten, Leaky Gut, & Autoimmunity

  • Mastering the Thyroid

  • The Role of Nitric Oxide, Glutathione, & Exercise in the Immune System

  • International Chiropractic Pediatric Association (ICPA) Certificates:

  • Family Nutrition: Epigenetics and Parental Health and Nutrition for the Perinatal Period

  • Neuroimmunology: Patterns of Interference

  • Webster's Technique


Dr. Blair is proud to be a part of the following affiliations:


Texas Chiropractic Association

Chiropractic Life Care of America

International Chiropractic Pediatric Association

International College of Applied Kinesiology

International Association of Functional Neurology and Rehabilitation

League of Chiropractic Women

Young Living Essential Oils, Inc.

The National Wellness Foundation

Holistic Pediatric Alliance

American Pregnancy Association

Texas Birth Networks



When Dr. Blair was in high school, she was a competitive dancer who suffered from extreme exertion pain in her rib cage. She went to several doctors checking her lungs and liver, with all tests coming back normal. One of her best friends was a Chiropractic Assistant, and suggested that she come see her Chiropractor. She started receiving regular chiropractic care, and all her pain dissipated. Not only was she pain free, but she noticed she could breathe easier, her lifelong allergies disappeared, and she was an overall more energetic and positive young teenager. As her high school years progressed, she knew she wanted to become a chiropractor. Dr. Blair has always had a passion for health and fitness and a drive to inspire those around her to live a healthy lifestyle.


Dr. Amanda Ulloa, D.C.

Doctor of Chiropractic

Dr. Amanda is a native Texan. She grew up in Houston, but made her way back to central Texas after chiropractic school. Dr. Amanda graduated from Life University, in Marietta, GA in 2015, and has been practicing in Texas since early 2016. She is trained in several chiropractic techniques, and is excited to learn and grow as a practitioner and doctor. She has experience with patients with injuries from sports, work and recreation. She's proficient with adjusting patients with chronic migraines, sciatica, joint pain, muscle imbalances, pregnancy as well as wellness care for young and young at heart. Her approach is gentle, yet effective.

Dr. Amanda first became interested in chiropractic care in January 2012, when she was given her first adjustment. With a history of car accidents, sports injuries and concussions, her spine had been misaligned, or subluxated, for many years, but she didn't know it. After her first adjustment, she started noticing changes in her mood and sleep. She has less brain fog and better focus. She got really interested in the change and decided to start Chiropractic school that following April.

During Chiropractic school, Dr. Amanda became the treasurer of the Upper Cervical Student Society, was accepted into the research track and awarded a scholarship at Life University for her research in upper cervical chiropractic care. 

Dr. Amanda is trained and experienced in:

  • Full Spine Diversified adjusting technique

  • Thompson adjusting technique

  • Advanced Toggle Technique

  • Grostic technique

  • Knee Chest Upper Cervical Specific

  • The Art of The Specific

  • Nutritional Response Testing

  • Applied Kinesiology

  • Sacro-Occipital Technique

  • MC2

  • QSM3

  • BioGeometric Integration

  • Neuro Emotional Technique

  • Spinal Rehabilitation

  • Essential Oils

  • Whole Food Supplements

  • Detoxification Programs

Dr. Amanda earned her B.A. degree in Art, with a minor in Biology at Texas State University-San Marcos in 2006. She got a certification in Personal Training through NASM, then PTA global as well as a Spinning and TRX group training certification from 2009-2012. In 2015, she graduated from Life University, in Marietta, GA, with her Doctor of Chiropractic degree and certifications in Grostic, KCUCS, and TATS. Her continued education includes:

  • Adjusting Pediatric Athletes

  • Correcting the Spinal Cervical Curve

  • Nutrition Response Testing

  • All Disease Becomes Autoimmune: Preventing and Reversing the Autoimmune Process

Dr. Amanda was the secretary for the Taylor Area Business Women's group and helped found the mentorship program for Taylor area high school girls. She was also on the scholarship council for high school seniors going to college.

  • Foundation for Vertebral Subluxation

  • Texas Chiropractic Association

  • League of Chiropractic Women

  • Standard Process and Medi-Herb

  • NVIC

  • DoTERRA Essential Oils

  • Analgesic Healthcare

  • Canbiola CBD

Dr. Amanda played club softball in high school and college. She was the president of the Texas State Softball Club team in 2006, and in 2014, her team took 2nd in Chiro Games softball tournament. She also enjoys running, hiking, SCUBA diving, yoga, and wine pairings. She lives in Round Rock with her husband.


Yojaira Bahena

Yojaira was born and raised in Guatemala. At the age of 15, she moved to West Texas. She did her undergraduate studies at Southwestern Adventist University in Keene, Texas, where she received her Bachelor of Science in Exercise Science. She then attended Parker University in Dallas for her Doctor of Chiropractic and Master of Science in Functional Nutrition. She has been with Round Rock Health and Wellness since September 2023. She chose chiropractic because she believes the human body is intelligent and well-coordinated enough to heal and regulate itself naturally when given the proper tools. She enjoys the opportunities to educate patients about their bodies and health. Yojaira respects and loves the powerful effects of reducing pain and improving function that chiropractic can offer. She enjoys playing soccer, exercising, playing with her dogs, spending quality time with her husband and watching movies in her free time. Todos son bienvenidos!


Isaiah Martin

Isaiah Martin is a chiropractor intern at Parker University. He has an educational background from Angelo State with a Bachelor of Science in Exercise Science and a Master of Education. Currently, he is working towards completing his Doctorate in Chiropractic, with an expected graduation date of April 2024. He is also a certified yoga instructor with four years of teaching experience, was a collegiate athlete, and has worked at Stretchlab while in school. Isaiah has developed a deep understanding of the importance of alignment, discipline, mobility, recovery and rehabilitation. He has the privilege of working with individuals from diverse backgrounds, skill levels and ages, and has witnessed significant improvements in their performance and overall quality of life as they achieved their health goals. Outside of his professional life, he is a devoted father, a passionate foodie, and a coffee lover. Staying active is not only a personal passion, but also a means for him to continuously learn and grown in his field. Isaiah is genuinely excited about this time at Round Rock Health and Wellness and the growth to come.

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