Ryanne Lachman
Dietician
Ryanne Lachman is a Registered and Licensed Dietitian residing in the US State of Ohio with her husband Brian, daughter Avery, and her two unofficial work-from-home puppy co-workers, Bella and Bowie. Ryanne has been an RD for 10 years, currently working as a Virtual GI Specialist Dietitian and as a Culinary Nutrition Adjunct Professor at Case Western Reserve University. Ryanne and Seema spent many years working together at the Cleveland Clinic Center for Functional Medicine where together they helped thousands of patients tackle their health challenges using food as medicine. As a self-proclaimed nerd, she just loves to learn and is currently pursuing Culinary Medicine Specialist (CCMS) certification as well. She makes health a priority through testing new recipes, getting plenty of exercise (senseable) sunshine, and viewing everyday as a fun, new adventure with her family.
Colleen Allison
Executive Assistant
Colleen Allison is the Executive Assistant for Healing Family Functional Medicine, bringing more than sixteen years of experience in clinical leadership and patient support. She spent seven years with the Cleveland Clinic Center for Functional Medicine, where she received the Excellence Award in recognition of her outstanding performance and dedication to patient-centered care.
Through this experience, Colleen developed a deep understanding of the unique operations of functional medicine and the thoughtful coordination required to truly support patients and families. She brings that same commitment, insight, and attention to detail to every aspect of our practice, helping us continually refine and elevate the care we provide.
As a trusted liaison between patients and practitioners, Colleen helps ensure each family’s journey toward better health is guided with clarity, compassion, and genuine support.
William Davis
Executive Chef
William Davis is a highly skilled Executive Chef and Instructor with a passion for Functional Medicine cuisine. As a graduate of the AOS Culinary Arts Program at the Culinary Institute of America and a bachelor’s degree holder in holistic nutrition from the University of Natural Health, he is uniquely equipped to create delicious, nutritious meals that cater to a variety of dietary restrictions. His commitment to preparing homemade, gluten-free, dairy-free, and phytonutrient-rich food has earned him a reputation as a highly sought-after chef.
William is now the Cafe Operations Manager/Executive Chef for Nourish Cafe in Cleveland (Waterloo District), an exciting opportunity to grow and evolve with a Vegan Cafe. He also acts as a Practitioner Consultant for Healing Family Functional Medicine, providing meal recommendations and recipes, which can be found in our “Recipes” section. Additionally, William offers in-person Functional Medicine cooking classes at the Loretta Paganini School of Cooking, sharing his expertise and passion for healthy cuisine directly with the community.
Sandy Riggenbach, NRCMA, CHC, CFNC
Certified Medical Assistant, Health Coach, and Certified Functional Nutrition Counselor
Sandy Riggenbach, NRCMA, CHC, CFNC, is a Certified Medical Assistant, Health Coach, and Certified Functional Nutrition Counselor through the Functional Nutrition Alliance. After 25 years in the orthopaedic field, she transitioned to functional medicine in 2024, inspired by her daughter’s health journey. Sandy’s daughter was diagnosed with Crohn’s disease at age 4, and after struggling with debilitating treatments for several years under conventional medical care, she finally found answers in the field of functional medicine. Under the care of a functional medicine practitioner, Sandy saw a dramatic and positive change in her daughter’s condition and became deeply committed to this approach. At Healing Family Functional Medicine, Sandy supports both clinical and administrative operations. She works closely with Dr. Patel, conducting neurofeedback training sessions and LED light therapy treatments, while also bringing her passion for nutrition into her daily work with patients and families.
Shayne Brinda
Medical Administrative Assistant
Shayne Brinda began her medical career over 14 years ago in orthopedics, where she started as a medical assistant and quickly discovered her deep passion for helping people improve their health and quality of life. Growing up and attending college in Maine, Shayne developed a strong work ethic and a heart-centered approach to patient care that continues to guide her practice today.
Six years ago, Shayne’s professional path shifted when she personally experienced the challenges of infertility. That journey led her to discover functional medicine — and ultimately transformed both her health philosophy and her career focus. Through her own healing process, she developed a profound passion for root-cause medicine and a commitment to helping others uncover the “why” behind their symptoms.
Today, Shayne blends her strong clinical foundation with a functional, whole-person approach, empowering patients to take control of their health through education, personalized care, and sustainable lifestyle strategies. Her mission is simple: to help individuals feel heard, supported, and truly well.