Dr. Aaron Oxenrider


Dr. Aaron Oxenrider, known by his patients and peers at “Dr. Aaron” is a board certified chiropractic physician who has certifications in wellness lifestyle intervention and pain management.

Dr. Aaron studied nutrition science at Indiana University before receiving his doctorate of chiropractic, graduating with honors, from the world-renowned Palmer College of Chiropractic. Dr. Aaron has taken hundreds of hours in post doctorate nutrition studies, functional medicine, lifestyle genetics, scientific exercise protocols and mind-body healing arts.

Dr. Aaron has lectured to his peers across the country on lifestyle intervention science, nutrition and positive change implementation techniques. He was awarded the honor by the city of Noblesville of “Dr. Aaron Oxenrider Day” on June 28, 2012 for his years of dedicated service to the people of his community.

Dr. Aaron is currently finishing several books focusing on reversing lifestyle diseases through nutrition, exercise and doctors tested top-of- the-line nutritional supplementation. His goal is to make obtaining great health and weight loss simple, wildly effective, unexpectedly fun and at the same time fitting into people’s hectic life schedules.

Bryndon Preston


Bryndon Preston is an author, counselor, life coach, and business owner. His background is in customer service, conflict mediation, and sales. He has spent years of study and research into human psychology and behavior with a focus on integrity based sales and marketing. He brings his skills, experience and passion to Access 2 Integration to further their goal of allowing chiropractic offices to successfully integrate and serve their patients and their community.

Dr. Damon Walton

Executive Leadership Team

Dr. Damon Walton is a 45 year old healthcare entrepreneur from Carlinville IL. He and his wife Rebecca (who is a retired school teacher) have been married for 22 years and have three inspiring children; Emma (20), Adam (18), and Nick (16).

Damon began his career as a chiropractor in 1995, having graduated from Logan University with a Bachelors of Science in Human Biology and a Doctorate of Chiropractic. In 1997, Damon opened his first solo practice. Quickly growing one of the busiest offices in downstate Illinois, he then began to mentor and train other doctors, growing his chiropractic office holdings from 1 clinic to 10 clinics in 4 years, and that was just the beginning.

From there, Damon was the founding partner and CEO of ChiroSystems and brought in multiple partners to then launch/own/sell dozens of clinics across the country; 79 collectively. With a nearly 90% success rate, ChiroSystems created success for dozens of young doctors beginning their career. During this time, he served as adjunct faculty at multiple universities and has been a popular speaker in many settings including franchise events, consulting groups, and on college campuses.

Damon is also the developer of a unique business training process called “The Strategic Clinic” that helps doctors to think and like entrepreneurs and dramatically increase their capacity.

He was co-founder of the Launch U division of an already existing franchise, launching dozens more clinics successfully across the country, and coaching clinics to strategically grow their businesses.

In 2015, after leaving the franchise model, Damon launched the Lifetime Metabolic Program, and has rapidly grown that in both chiropractic and medical offices in the last 2 years, providing management and growth strategies to 30 plus clinics in that time, as well as developing proprietary supplements and educational material for the program and the doctors/patients that are served. In that time as well, Damon has financed and launched multiple medically integrated practices, serving as the managing director for these highly successful clinics.

Damon has been involved in dozens of clinic sales and acquisitions, and has coached hundreds of chiropractic doctors in the last 2 decades.

Dr. Bart Anderson

Executive Leadership Team

Dr. Anderson was born with chiropractic in his genes — coming from a family of 9 chiropractors. Bart is a 1991 graduate of Logan College of Chiropractic in St. Louis, Missouri.
Excellence, trustworthiness, initiative, and a deep network and constant growth have been his key career differentiators. In 2005 he was awarded the prestigious International Chiropractor of the Year, and Doctor of the Year in 1996 (Markson Management).

Bart grew his very first practice into a multi-doctor, multi-office network of clinics throughout Indiana. Bart and his three partners have collectively owned and/or launched over 65 clinics. Bart also teaches as an adjunct faculty member at a number of America’s leading chiropractic colleges.

From 2010 to 2015, Dr. Anderson worked as Regional Development Manager with the largest U.S. chiropractic franchise, totaling some 400 franchises. Bart and Dr. Damon directed the practice start-up programs. In all, his team owned or helped launch well over 120 clinics in this time.

Prior to joining United Medical, Dr. Bart was a director of the clinical weight loss company Lifetime Fat Loss and Lifetime Metabolics, Inc. In addition, he has been a highly respected trainer and coach of chiropractors nationwide.

Dr. Bart has devoted much of his career to learning, sharing and coaching the principles of attitude, motivation and personal/business success. He has instructed and inspired thousands through his speaking. Audiences have consisted of civic groups, businesses, athletic teams, prisons, and of course, chiropractic students, doctors and staff.

Bart and his wife Leanne have three teenage children — as a family, they love time spent together cycling, boating and hunting.

Angela Green MN


Angela Green MN, FNP-BC is a working in professional collaboration with Dr. Aaron Oxenrider, Angela will be providing clinical leadership as well as mentoring of FNPs as they transition into the Functional Medicine role.

Angela received her Bachelor’s in Science in Nursing from the University of Evansville graduating magna cum laude. She was inducted into Sigma Theta Tau International Nursing Honor Society for her academic achievements while at the University of Evansville. She was nominated by her undergraduate faculty and subsequently selected for a prestigious Woodruff Scholarship to pursue her graduate studies at the Nell Hodgson Woodruff School of Nursing Emory University in Atlanta, Georgia. She completed her Master’s of Nursing as a Clinical Nurse Specialist Adult/Health Critical Care focusing on the neuroscience patient population. While at Emory, Angela completed a 6 week clinical rotation in the Neuroscience Division of the National Institutes of Health in Bethesda, Maryland. Her post graduate studies were completed at the University of Indianapolis in the Family Nurse Practitioner program. She is Board Certified as a Family Nurse Practitioner from the American Nurses Credentialing Center.

Angela has a diverse clinical background. She has provided direct care to hospitalized patients in tertiary medical centers in the areas of neuroscience, orthopedic spine, emergency medicine and critical care. Her clinical experiences encompass patient care from the home setting, outpatient clinic, emergency room, intensive care setting, operating room and the reintegration in the rehabilitative phase of recovery from a catastrophic illness.

In collaboration with our leadership team, Angela is looking forward to expanding her clinical practice to promote the integration of primary healthcare in our Chiropractic clinics.

Erica R. Grant Ervin


Hello! I’m Erica R. Grant Ervin, MPH, FNP-BC and this is my story (the short

version). I am 41 years old and I was born and raised in Memphis,TN. I’ve been married to my awesome husband for 7 years and we have an amazing 2 year-old daughter and a sweet little 13 year old cat. I graduated from nursing school with a BSN in December 2008

(University of Memphis). After graduation, I worked as an ICU nurse for 3 years in Memphis and New York. In 2012, I graduated from the MSN program at the University of Memphis. While at the University of Memphis, I was inducted into Sigma Theta Tau International Nursing Honor Society. After I graduated, I was Board Certified as a Family Nurse Practitioner by American Academy of Nurse Practitioners (AANP). As a family nurse practitioner, I worked in a burn unit, a retail healthcare clinic and a weight loss clinic. Prior to becoming a nurse, I received my 1st undergrad degree (in biology) from Clark-Atlanta University (Atlanta, GA) in 1997. After that, I moved to Philadelphia and went to Drexel University and received a Master’s in Public Health (MPH) in 2000. Furthermore, I have worked as a high school science teacher and a clinical research coordinator. I became a part of the A2I family in December 2014. The past 2 years with A2I have been amazing! I never thought that I would ever love a job and the people with whom I work but i do!