Dr. Kathryn Gies, DC

Dr. Kathryn Gies, DC, is the founder and medical director of Avant Wellness. She is trained in the evaluation, diagnosis, and natural management of human ailments. Her professional philosophy and comprehensive approach to care reveals and addresses the root cause of health concerns as she supports her patients on their path to health and wellbeing. Her collaborative process is based on mutual intention and creating attainable goals for advancing each individual patient’s health and well-being.

Dr. Gies completed her Doctoral studies at National University of Health Sciences. She has also completed more than 650 hours of advanced clinical training and certifications in the areas of nutrition, acupuncture, and natural therapies for family and pediatric care.

This diversified background, paired with attention to evidence-based clinical advancements in biological health sciences has informed the Whole Health and Natural Medicine philosophy shared among all Avant Wellness clinicians.

Dr. Jennifer Kirk, MD

Dr. Jennifer Kirk, MD, formerly a distinguished general surgeon, is now practicing integrative and functional medicine at Avant Wellness. She earned her medical degree from the University of Michigan Medical School where she honed her expertise in comprehensive patient care.

Driven by a passion for healing beyond traditional methods, she pairs a wealth of experience in traditional medicine with a dedication to holistic healthcare and a commitment to guiding individuals toward optimal well-being. Dr. Kirk brings a diverse professional and personal perspective to collaborative patient care, and her patient-centered approach is rooted in addressing the underlying causes of health issues. 

Krista Klosowski

Krista Klosowski, MSACN, BSN provides holistic nutrition services with a collaborative and patient-centered approach. Using whole-food nutrition and lifestyle methodology, Krista provides personalized nutrition plans that target root cause health issues and provide essential nutrients to support each patient as they reach and maintain optimal health and wellness.

Krista is a Registered Nurse and received her Bachelor of Science in Nursing degree from Calvin College. She received her Master of Science in Applied Clinical Nutrition degree from New York Chiropractic College.

Krista works with a broad spectrum of patient concerns, from disease prevention to specific health conditions. Her experience, passion for nutrition, and care for patients makes her a great partner for reaching personal goals and improving health.



Ellen Biemiller

­Ellen Biemiller, CNS, LDN, is a Licensed Dietitian Nutritionist who uses nutrition as a therapeutic tool in her patients' healing journeys. With a Master's Degree in Human Nutrition and Functional Medicine from University of Western States, Ellen understands that each and every patient is different and deserves individualized treatment and support. She recognizes that health is not "one-size fits all" and works with her patients to develop personalized nutrition plans that work for their unique lives. 

Ellen believes that to feel healthy is not just to be without pain, but to be able to live your fullest, most vibrant life. Food and diet is just one piece of the puzzle. Ellen has a wide variety of experience with patients, specializing in gastrointestinal and hormonal symptoms, metabolic support, and disordered eating patterns.