Functional Medicine & Telehealth in Johnson City, TN

About Us

Who We Are
About Foundation Functional

At Foundation Functional, we believe lasting wellness starts by understanding the whole person — not just isolated symptoms. Our team uses advanced functional medicine testing and personalized care to uncover the root causes of fatigue, hormone imbalance, inflammation, and chronic issues that keep you from feeling your best. We look deeper to find answers conventional care often overlooks, connecting the dots between your biology, lifestyle, and environment.

Through secure telehealth visits, we make expert care accessible wherever you are. From comprehensive lab analysis to one-on-one lifestyle guidance, we design personalized plans that help restore balance, energy, and long-term health. Whether you’re seeking renewed vitality, better digestion, balanced hormones, or preventive care, we’re here to help you heal from the inside out — with evidence-based, compassionate support every step of the way.

Meet Your Practitioner

ABBY DE GOUVEIA

Hi I'm Abby de Gouveia! I was raised here in East Tennessee and after getting married and moving away for six years in the Pacific Northwest, I'm delighted to be back home. I'm excited to share my passion for health and weight loss with my family and friends in East Tennessee. I was born in El Paso, Texas, but grew up in Tennessee. I attended ETSU for my undergraduate degree and Lincoln Memorial University-DeBusk College of Osteopathic Medicine for my master's degree. I enjoy urgent and emergent care, but my other passion is assisting individuals in reaching their weight loss goals. The bonds you can develop in a short period of time and the joy you bring to people’s lives make it all worthwhile for me. I want to assist people in losing weight in a safe, healthy, and medically controlled manner.

When I'm not working with patients, I'm lucky enough to be married to a fantastic man and have two gorgeous daughters. We enjoy hiking, traveling, playing board games, and anything else that involves spending time with family. I also enjoy music; singing and playing the violin are two of my favorite ways to unwind.

As your personal practitioner, I want to help you find the real reason behind your health problems so you can get as healthy as possible with a customized plan.

Frequently Asked Questions

What is functional medicine?

Functional medicine is a personalized, systems-based approach to healthcare that looks for the root causes of symptoms. Instead of treating issues in isolation, we evaluate how hormones, gut health, inflammation, metabolism, stress, and lifestyle all work together — and create a plan that supports whole-body healing.

How do telehealth visits work?

All consultations are done securely online. After scheduling, you’ll receive a video link and simple instructions. Your provider will review your history, symptoms, and goals, recommend any necessary lab tests, and walk through your personalized plan — all from the comfort of your home.

Do I need to live in Johnson City to become a patient?

No — telehealth allows us to serve patients throughout Tennessee. As long as you are located within the states our providers are licensed in, you can receive care virtually.

What types of conditions do you help with?

We commonly work with hormone imbalance, thyroid dysfunction, gut issues, chronic fatigue, inflammation, autoimmune concerns, metabolic issues, weight challenges, and stress-related symptoms. If you’re unsure whether we treat your condition, we’re happy to discuss it during a consultation.

Do you order lab tests?

Yes. We offer both standard labs and advanced functional medicine testing. Many tests can be completed at local labs, pharmacies, or through at-home kits delivered to your door.

Will you work with my primary care doctor?

Yes. We encourage collaboration and can share lab results or care plans with your primary care provider to ensure you receive coordinated, comprehensive wellness support.

Do you accept insurance?

At this time, we do not accept insurance. However, many services and lab tests may qualify for HSA or FSA use. We can provide detailed receipts for you to submit for potential reimbursement.

How long does it take to see results?

Each person’s journey is unique, but many patients begin experiencing improvements in energy, digestion, sleep, or mood within the first 4–8 weeks. More complex concerns may require a longer, step-by-step approach.

What’s included in a personalized care plan?

Your plan may include nutrition guidance, supplement recommendations, lifestyle strategies, stress support, hormone or metabolic optimization, and follow-up visits — all tailored to your symptoms, labs, and goals.

Discover the Root Cause of Your Symptoms — From Home.

Start your telehealth consultation today and begin your path to lasting wellness.