Meet the Team Optimizing Your Next Phase of Health
At Next Phase of Health the founders both have obtained their Doctorate of Nursing Practice from DePaul University. Lindsey is a board Certified Registered Nurse Anesthetist and Bryan is a board certified Family Nurse Practitioner. Together they utilize their clinical expertise combined with their individual health transformations to deliver proactive care. We focus on hormones, metabolism, GLP-1 weight optimization, peptides, and lifestyle strategies—helping busy patients feel energized, perform at their peak, and age with intention, not just treat symptoms.
Lindsey Kilsdonk, DNP, CRNA
Lindsey Kilsdonk is a Doctor of Nursing Practice and Certified Registered Nurse Anesthetist with years of experience in high-acuity medical care. Through both her clinical practice and her own health journey after multiple back surgeries, she recognized that many people are treated only after problems develop — not when they first stop feeling like themselves.
After improving her own energy, weight, and well-being through targeted health optimization, Lindsey shifted her focus toward proactive care. She is passionate about identifying root causes, restoring balance, and creating sustainable plans tailored to each patient.
At Next Phase of Health, her goal is to help patients optimize their metabolism, hormones, and vitality so they can feel, perform, and live at their best in every phase of life.
Bryan Mullaney, DNP, FNP
Bryan is a board-certified Family Nurse Practitioner who earned his Doctorate from DePaul University in 2018. Since completing his training, he has practiced primary care with a focus on managing complex chronic conditions, including diabetes, obesity, heart failure, kidney disease, and liver disease. He is known for his patient centered approach-prioritizing active listening, shared decision-making, and clear education so patients fully understand their treatment plans and medications.
Having faced a lifelong struggle with obesity himself, Bryan brings both clinical expertise and personal insight to his work. Through consistent exercise, disciplined nutrition, and the power of community, he has significantly improved his own health and athletic performance, by losing over 120 pounds.
His mission is to help patients achieve sustainable health optimization by making small, strategic changes that lead to meaningful, lasting results.
Our Services
GLP-1 Medical Weight Optimization
At Next Phase of Health, our GLP-1 medical weight optimization program is designed to help patients achieve meaningful, sustainable weight loss while improving overall metabolic health. Using advanced medications such as semaglutide and tirzepatide, this treatment works with your body’s natural metabolic systems to regulate appetite, improve insulin sensitivity, and support healthy fat loss.
