About Us


At Castle Wellness, our mission is to empower women, especially those over 40, to stop being dismissed, start asking deeper questions, and reclaim their health with confidence. Through functional medicine, root-cause discovery, and personalized wellness strategies, we help you tune into your body’s signals and take bold, informed action. We believe healing starts with curiosity, is sustained by science, and is guided by heart.

Mandy Mendoza

MSN, RN, CNL, CPHQ, BC-FMP

Founder & CEO, Castle Wellness

Board Certified Functional Medicine Practitioner

Registered Nurse

Wellness Warrior

With over 30 years of nursing experience, I’ve seen firsthand how traditional healthcare often treats symptoms instead of addressing root causes. That’s why I shifted my focus to functional and holistic medicine—because real healing starts when we stop asking "What’s wrong?" and start asking "Why is this happening?"

I hold a Master of Science in Nursing, Clinical Nurse Leader (MSN-CNL) from the University of San Francisco, a Bachelor of Science in Nursing (BSN) from Azusa Pacific University, and board certification in Functional Medicine Practice (BC-FMP). I’m also a Certified Professional in Healthcare Quality (CPHQ), blending clinical insight with a passion for prevention and personalized wellness.


Through my CASTLE Method and personalized coaching, I guide women, especially those over 40, through the overwhelm of fatigue, inflammation, and gut dysfunction. My approach is grounded in evidence-based practice, functional labs, lifestyle medicine, and a whole lot of heart.


This isn’t just about better labs—it’s about reclaiming your energy, clarity, confidence, and joy.

It’s time to stop being ignored and start showing up like the wellness warrior you are. Your body’s been whispering—it’s time we listened. Together, we’ll uncover the root causes, create a personalized plan, and reclaim the vibrant health you were made for. You’re not broken. You’re just ready to rise.

Why Choose Us?

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Faith-Inspired, Client-Focused

We believe healing is a whole-person journey — mind, body, and spirit — with grace, hope, and purpose guiding every step.

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Commitment to Your Growth

We provide ongoing support to help you build lasting habits that promote long-term health and wellness.

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Flexible Programs for Busy Lives

Dedicated to your personal development, we offer continuous guidance to help you achieve your full potential.

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Root Cause, Not Band-Aids


We don’t just chase symptoms — we dig deep to uncover what’s really driving your health issues

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Support for Sustainable Change

Experience a welcoming space where you are empowered and encouraged to grow.

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Contact info

Castle Wellness LLC

(940) 209-1988

Mandy@Castlewellnesscoaching.com

© 2025 Castle Wellness - All Rights Reserved.