About Us
An Empowering Path to Sustainable Wellness
At Root, we're on a mission to bring sustainable and validated functional medicine to the world.
We believe in a personalized approach that empowers you to take control of your health and achieve long-lasting results.
We leverage science and innovative technology plus support from experts to create a functional medicine experience where you can be successful.
Our Story
Founded in 2018, Root emerged from a desire to bridge the gap between traditional medicine and the root causes of health concerns. We saw a space where symptoms were treated, but the underlying imbalances remain unaddressed.
As a team of functional medicine doctors and dietitians, we are dedicated to treating gut health, hormone, autoimmune, and other concerns at the Root cause. We've helped thousands of people and we're ready to share our proven process with everyone.
Get To Your Root Cause
Curious about where you should start your functional medicine journey?
Take our Get to the Root Quiz so you can start working towards reversing disease and optimizing your health at the Root cause.
Take Control of Your Health
Are you ready to stop chasing symptoms and start feeling better?
Whether you’re optimizing health, managing a condition, or seeking answers, we put the power of functional medicine in your hands.
Fuel Your Wellness Journey
Looking to elevate your health journey and bridge the gap between good and thriving?
Root Functional Medicine supplements are designed to support your body's natural systems and address your unique needs.
Meet Our Doctors and Dietitians
Erica Armstrong
MD, IFMCP, Founder/CEO of Root
Hobbies: running, Peloton, walking my dog, playing basketball at the park with my kids - anything active!
Dr. Armstrong is not currently accepting new members.
Emily Cordes
DO, IFMCP
Residency: Internal Medicine & Pediatrics at Western Michigan University School of Medicine
Functional Medicine Training: Certified by the Institute of Functional Medicine
Hobbies: Cooking, Fitness, Downhill Skiing, Cycling, Hiking, Gardening, Spoiling my Labrador Retriever
Accepting new members in: IA, ID, MN, MT, ND, NV, SD, UT, WA
Michelle Seguin
MD, IFMCP
Residency: Marquette Family Medicine Residency Program
Functional Medicine Training: Certified by the Institute of Functional Medicine. Board Certified in Lifestyle Medicine by the American Board of Lifestyle Medicine.
Hobbies: Cooking, gardening, reading, yoga, and spending time with my family on our property in the Keweenaw.
Favorite thing about working at Root: Every person has a unique story. It is an honor to support my patients with
compassion, an open mind, and a personalized approach. I love the opportunity for collaboration and team-based care, which promotes whole health and well-being for all!
Accepting new members in: CA, CT, DE, FL, GA, IN, LA, MA, ME, MI, MN, MO, MS, NC, NJ, NY, PA, TX, VA, VT, WI, WV
Bethanie Thompson
MD, IFMCP
Accepting new members in: AL, AZ, CO, IL, KS, KY, MD, NE, OH, OK, TN
Katherine Stam
DO, IFMCP
Residency: Family Medicine at Albany Medical Center
Functional Medicine Training: Certified by the Institute of Functional Medicine
Hobbies: Hiking, yoga, kayaking, paddleboarding, cooking, reading, live music, gardening, and travel
Dr. Stam is not currently accepting new members.
Amy Masterson
MS, RDN, LD
Danielle Fiskars-Byers
RDN, LD
Favorite thing about working at Root: I love looking at each member's unique health needs and goals & then helping them to create a roadmap to feeling their best physically, mentally and emotionally! We all work together at Root to support each other and our clients which creates a culture and environment that is full of warmth.
Lauren Hanson
MS, RDN, LD
Favorite food: Tacos-any and all types.
Favorite thing about working at Root: Root community is filled with members who are passionate about their health. I love having the opportunity to create meaningful and impactful nutrition recommendations while keeping in mind an individual's busy lifestyle. We need to fuel every.single.day and learning how to best do that for our bodies to optimize our health is amazing.
Stephanie Nielsen
MA, RDN, LD
Favorite Food: There are so many delicious foods, but if I had to pick, I'd narrow it down to dark chocolate (70% or higher please), hummus, and guacamole.
Favorite Thing About Working at Root: I love supporting, connecting, and collaborating with others on their health path through a mind-body-spirit approach that helps them better connect with their body and unique needs and get to the root cause, not just cover up symptoms. I've always hoped to work and brainstorm with an amazing and supportive team of like-minded doctors and dietitians, and I get to do that at Root!
Kelsey Stricklen
MS, RDN
Kelsey is not accepting new members.
Join Us
Become a Premium Root member to get personalized plans from our doctors and dietitians.
As a premium member, receive exclusive one-on-one virtual consultations with our team of functional medicine certified healthcare professionals. We work with you to understand your health goals, address your unique needs, and craft a customized wellness plan.
Explore Our Premium Membership