Advanced Physical Health is a family practice founded by husband-and-wife team, Dr. Sylvie Carpetier and Dr. Matthew White. In 2016, the practice grew to include their daughter, Dr. Monique White, and in 2025, longtime family friend Dr. Nicholas Hagan joined the team! Together, they bring over 95 years of combined experience to their practice. The doctors work collaboratively with other healthcare professionals to quickly identify and understand your health concerns, applying the most effective treatments to help you achieve optimal health.
Nicholas Hagan, D.C.
Dr. Hagan is a Board-Certified Chiropractic Physician practicing in his hometown of Columbia, MO. He is passionate in helping people who are looking for a truly effective and natural approach to healthcare. He especially enjoys working with athletes and active families. He also includes both Nutrition Response Testing and Peptide Therapy into his practice. He owned and operated Innate Health and Wellness before joining the APH team.
Read more: Dr. Nicholas Hagan
Monique White, D.C., MS, ICCSP, Perinatal Certified, Webster Certified
Dr. Monique is a second generation Chiropractic Physician practicing in Columbia Missouri. She is the daughter of Dr.'s White and Carpentier. She attained her Masters in Sports Science and Rehabilitation and she is an Internationally Certified Chiropractic Sports Practitioner. She is certified in Acupuncture as well, with a specialty in Fertility Acupuncture. She is a Perinatal and Webster certified chiropractor, so she has undergone advanced training to care for pregnant patients. She is also certified in SAAT (Soliman Auricular Allergy Technique).
Read more: Dr. Monique White
Matthew White, D.C. and Sylvie Carpentier, D.C.
Dr.'s Carpentier and White are a husband and wife team that have been in practice serving Columbia, Missouri as chiropractic physicians for 39 years. They are also both certified to practice Acupuncture in Missouri through the International Academy of Clinical Acupuncture. They met while in chiropractic school in St. Louis, Missouri and opened their practice together. They have served Columbia for nearly four decades.
Read more: Dr. White & Dr. Carpentier
Patty Ann Price
Patty Ann has been with the clinic for over 39 years. She started with Dr. C and Dr. White during their very first year of practice. She often surprises patients by knowing their names when they walk in and recognizing their voice on the phone. She has a wonderful laugh and brings a lot of joy to the reception area! She has two sons and a little granddaughter!
Amanda George
Amanda is our very knowledgable health insurance specialist. She works individually with our patients to assist them in learning and using their health insurance benefits. She stays up to the date with the ever-changing health insurance policies so she is an angel! She has been with us for over 28 years.
Shelby Schondelmeyer
Shelby first came into the clinic as a patient of Dr. Monique's and her husband had been a patient of Dr. Carpentier's for a long time. After getting to know her and when we had an opening for a therapy assistant position-we offered her a job! If you've met her at the clinic, it's very obvious she is an extremely hard worker and very dedicated to patient care. She goes above and beyond to help our patients. She is a mom of 4 and has a fun-loving, joyful, and caring personality.
Lakyn Wilcoxson
We’ve actually known Lakyn her entire life because of her mother, who worked for Dr. C and Dr. White decades ago! After graduating from school, Lakyn joined our team and has been an wonderful addition ever since. She is a diligent and compassionate team member who provides attentive, high-quality care to each of our patients.
Zoe Derboven
Again, we knew of Zoe because her family has been patients of APH throughout the years. A Columbia native, she joined our team after completing her undergraduate studies. Zoe is kind, attentive, and always ready to help our patients. Her warm personality and friendly smile make everyone feel comfortable from the moment they walk through the door!
Samantha Rojas
Samantha joined our team in 2026 and comes to us with a background in veterinary medicine. Her experience adds a unique skill set and a strong foundation in compassionate, detail-oriented care.
Bonnie Friehling, MD: Medical Director
Bonnie S. Friehling, MD, is a holistic medical practitioner in Columbia, Missouri. Her private practice has been located on the lower level of our clinic for decades. She began her medical career in emergency services and later transitioned into private practice, where she developed a passion for integrating traditional medical care with holistic approaches. Dr. Friehling is dedicated to caring for the whole patient—addressing physical, emotional, and mental health. At APH, she oversees the regenerative services we offer.
Kasie Leonard, RN
Kasie Leonard is a licensed registered nurse with extensive experience in patient care. She serves as the lead nurse for our regenerative services, where she is known for her skill, compassion, and attention to patient comfort. Her and Dr. Hagan are engaged!
Jeff Rioux, Massage Therapist
Jeff is a licensed massage therapist and the owner of Bodymind Therapeutic Massage. Since beginning his practice in 2001, he has developed extensive knowledge and hands-on experience in therapeutic bodywork. Read more.
