Peak Health Institute - Functional Medicine - Warrenville, Illinois

Ally R.

I highly recommend this establishment for hormone testing and overall health evaluation. A few weeks ago, I visited for hormone testing, as I believe it is crucial to have a clear understanding of one’s hormonal health. The entire process was seamless—they partner with Quest Diagnostics, allowing the flexibility to complete blood work at a convenient location if preferred. However, I opted to have everything done in their office, which was incredibly convenient.

My results were ready within approximately a week, after which I scheduled an appointment to review them with the doctor. Upon arrival, I was warmly welcomed with a personalized sign displaying my name and offered water or tea. The front desk staff was exceptionally kind and professional, making me feel immediately at ease.

During my consultation with Dr. Stephanie Thomas, I was impressed by her eloquence and calming demeanor. She thoroughly reviewed my results, addressed any concerns in detail, and was able to provide insightful explanations that helped me connect many aspects of my health. I left the appointment feeling relieved and well-informed.

Rather than prescribing unnecessary medications, Dr. Thomas took a thoughtful approach by recommending an over-the-counter solution for two months before reassessing my condition. Her expertise, attentiveness, and patient-centered care exceeded my expectations. Finding the right doctor is essential in these situations, and I am grateful to have found such an exceptional provider.

Kristin S.

So far my experience with Peak Health has been wonderful. Jordan has taken the time to listen and provide feedback and get me on the right path towards feeling my best. Vanessa has been great with IV therapies. I would tell anyone that’s on the fence about making an appointment to just do it so you can feel your absolute best.

Andrea M.

I recently visited Peak Health Institute and had an outstanding experience. From the moment I walked in, the atmosphere was welcoming and the staff was friendly. The receptionists were efficient and helpful, making the check-in process seamless.

Jordan was fantastic! She took the time to listen to my concerns and answered all my questions with patience and clarity. Her bedside manner was exceptional – I felt genuinely cared for throughout the entire visit. It’s clear that they prioritize patient comfort and well-being.

The office itself was clean, organized, and well-maintained, which added to the overall positive experience. I appreciate how the team works together to ensure that patients feel valued and respected.

I highly recommend Peak Health to anyone in need of medical care. It's rare to find such a dedicated team that truly goes above and beyond for their patients. Thank you for a wonderful experience!

Pinnow F.

I’m can’t say enough good things about this practice. After experiencing a total health collapse a few years ago, I spent two years visiting specialist after specialist and several holistic and integrative providers before finally getting the correct diagnosis and treatment plan at Peak. Everyone at this practice is fantastic, from the medical providers, to the IV nurse, phlebotomist, officer management and front desk staff, they all go above and beyond to get you well. I also love that they are a one stop shop in terms of testing, supportive care like IVs and professional supplements, balancing hormones, bloodwork, and most importantly finding the root cause of why you feel sick. If you’ve been circling this page for a while like I was, go for it. It’s one of the best investments I’ve made for my overall health.

Mark K.

Katie and team are incredible. I went to see her because I had lingering tennis elbow pain for over two months.

She was able to treat me the right way (eg not giving me something that will give me short-term comfort but long-term issues) and now I’m paying free.

I’ve consulted Katie before and she is incredible. Whenever I have issues, I go to her first. I can’t recommend her and the team enough!

Margaret G.

LOVE Dr Montalvo and the staff at PEAK HEALTH INSTITUTE. They really take the time to dig in and find the root of your issues… where other places just brush it off and tell you you’re fine! Highly recommend!

Jen B.

I’ve been working with Katie for years and she is terrific. She asks smart questions, thinks holistically, and always respects my intuition about my own body. I especially appreciate how she always checks in on my health goals and helps me prioritize what to work on, since multiple chronic health issues can become overwhelming. She’s a true partner in my health and wellness, and I highly recommend her practice!

Casey B.

Since a small child I’ve always had plaque psoriasis. I’ve tried all kinds of treatments: injections, pills, topicals and creams. My husband suggested I come here, as he’s being treated for long COVID. When I first came I was about 9 months postpartum and having some issues. Tiffany spent an hour with me going over my entire life, diet, body and medical history. I was in credibly impressed in comparison to the standard medical experiences I’ve had.
I’ve noticed a substantial change in energy and alertness thanks to the staff at Peak. I genuinely look forward to all of my treatments and check ups.