Meet Our Care Team
James Bardwell, DO, MBA
Medical Director
Dr. James Bardwell is an internal medicine physician with specialized training through the Andrew Weil Center for Integrative Medicine at the University of Arizona. With decades of experience spanning hospital medicine, leadership in the VA healthcare system, and clinical research and development, he brings a well-rounded and evidence-based perspective to integrative cancer care. As Medical Director at An Oasis of Healing, he supports patients using natural, non-toxic therapies that work in harmony with the body’s own ability to restore health.
Cheryl A. Kollin, NMD
Naturopathic Medicine Physician
I am a highly qualified licensed naturopathic physician with a strong background in nutrition, clinical laboratory science, and cancer research. I earned my Doctor of Naturopathy (NMD) degree from the Southwest College of Naturopathic Medicine (now Sonoran University) in Tempe, AZ. I also hold a Master of Science in Nutrition from the University of Bridgeport in Bridgeport, CT, and am a Certified Clinical Nutritionist (CCN). I hold a professional license as a Clinical Laboratory Scientist (CLS) from California and am a member of the American Society of Clinical Pathologists (ASCP) and the Arizona Naturopathic Medical Association.
Teresa Diaz, MD
Functional Medicine Physician
I am a physician with a background in obstetrics and gynecology and extensive experience caring for women across the lifespan. After years of working in hospital-based medicine, I transitioned into functional and lifestyle medicine, with a special focus on hormone health, menopause, nutrition, metabolic wellness, and helping patients understand how their daily choices influence healing.
Alia Al-Alawi, BSN, RN
Registered Nurse
Maritza Meza, BSN, RN
Registered Nurse
In 2019, I obtained my degree in nursing from the University of South Dakota. After graduation I moved to Washington D.C to begin my nursing career. Since this time, I have worked in Intensive Care Units with a focus on Surgical Cardiac and Thoracic specialties.
After moving to Arizona, I thought it was time for a change in my career and I wanted to explore a path that focused on healing the mind and the body which brought me to An Oasis of Healing.
Amber DeBruin, BSN, RN
Registered Nurse
I am a Registered Nurse with over 20 years of diverse healthcare experience spanning pediatrics, neonatal intensive care, obstetrics, surgery, and community hospital settings. Throughout my nursing career, I have remained passionate about helping people achieve better health—not just by treating illness, but by addressing its underlying causes.
Danielle Killin, MBA, MA, BS
Medical Assistant
With over 20 years of experience in healthcare and business administration, I have dedicated my career to delivering exceptional patient care while ensuring the efficient operation of medical practices. My background as a Medical Assistant and Business Administration Manager has provided me with extensive expertise in patient relations, clinical support, practice management, and organizational leadership.
Rev. Dr. Cari Jackson
Emotional and Spiritual Life Coach
I serve as the Oasis emotional and spiritual life coach. I am an emotional intuitive, spiritual midwife, and social healer. I help countless individuals harness and transform life-limiting narratives and unhealed traumas into a profound embrace of peace, joyfulness, power, and unconditional love. I am an ordained Christian minister and have served as pastor of congregations in the United Church of Christ, United Methodist Church, and Presbyterian Church (USA). I also served as Director of Spiritual Care and Activism for the Religious Community for Reproductive Choice. I am the president of Excellent Way, which integrates spiritual wisdom from diverse traditions to facilitate individual and organizational transformation.
I’m a retired alternative oncology nurse, passionate about healing the mind, body, and spirit. I’m certified in both the Chikly and Vodder schools of lymphatic drainage, as well as electro-lymphatic therapy (the wands). I truly love helping bring ease, joy, and peace to each client’s healing journey.
Being part of the Oasis of Healing team is incredibly exciting for me, as everyone here shares the same goal of supporting our patients. In my free time, I enjoy being entertained by my chickens, gardening, spending time with my granddaughter, and dancing with my husband, Ricardo.
Sheila Lopez LMT, CLT
My journey into lymphatic therapy began long before I ever became a therapist. I proudly served my community as a paramedic for 20 years, working in high-stress emergency medicine before pursuing massage therapy in search of a more balanced, grounded path. As a Licensed Medical Massage Therapist for the past six years, my purpose became even clearer when my 16-year-old son was diagnosed with pediatric follicular lymphoma. While supporting him through conventional cancer treatment, I began exploring holistic therapies and discovered the incredible impact of the lymphatic system.
My journey into holistic health began with a deeply personal mission—to help relieve the chronic pain my grandmother suffered. After meeting an herbalist couple who introduced me to the healing power of natural medicine, I felt called to pursue a path devoted to wellness and natural healing.
In the late 1990s, I began working in health food stores, where I immersed myself in the study of herbs, supplements, and holistic nutrition. This early exposure laid the foundation for what has become a lifelong dedication to integrative health.
Dr. Zen Liu
Acupuncturist
Abby Kubat
Movement Specialist
I graduated from Grand Canyon University with a degree in Exercise Science and an emphasis in sports performance, with a minor in nutrition. I am a Board-Certified Holistic Health and Wellness Practitioner and Certified Flexologist with a strong foundation in exercise science, nutrition, and client-centered coaching. I have experience working in clinical, wellness, athletic, and adaptive fitness environments, supporting diverse populations, including individuals with disabilities and age-related conditions. I am passionate about developing personalized, evidence-informed health, mobility, and recovery programs while maintaining a compassionate, client-focused approach.
Kimberly Paul
Nutritionist, Plant-Pusher, Wellness Educator & Raw Food Chef
Since 2017, I have had the privilege of serving at An Oasis of Healing in many capacities. I managed the raw and living-foods kitchen, appeared as the featured chef alongside Dr. Lodi in the Stop Making Cancer video series and consult with patients from around the world. I also teach a wide range of wellness classes—from sprouting, fermenting, and dehydrating foods to juicing, fasting, strengthening vagal tone, and optimizing digestion—as well as the deeper work of establishing healthy boundaries, practicing forgiveness, and creating a life you love.
Amy Bullock, BSN
Nutritionist
When I was young, I often made choices that were not in alignment with the rest of my family. One of the best decisions I made at a young age was to forever stop eating meat. Growing up in the Chicago suburbs, everyone thought I was just going through a phase, but I always had a deep compassion for animals and people alike. It is difficult for me to witness suffering and my feelings always were that if any living creature must suffer for me to eat, there must be a better way.
Your Admissions Team
I am grateful to be a part of the An Oasis of Healing team, working as a Patient Admissions Counselor.
My degree is in Advertising/Marketing. I’m a Certified Wellness Consultant, Nutritional Consultant and a lifelong advocate for Integrative Medicine with a diverse background in Natural Health, working in Doctors’ offices in Integrative and Conventional Medicine, Health Food Retail Management, front-and back office Medical support, Management in Medical specialist practices, Chiropractic Assistant, Hospital Admissions, and Business Development in the Non- Profit and for-Profit Businesses.
I am originally from Central California. I grew up on my family’s walnut and orange grove. I have been in Arizona for about 5 years. I hold a bachelor’s degree in human services, and I have been working in the helping profession for over 30 years. What drew me to An Oasis of Healing was a calling , I have had my own journey with CFC’c and I am compelled to help others in their own journey. When I am not at work I enjoy family time, doing something outdoors, or riding motorcycle.
Your Administrative Team
I have over 25 years of experience working with patients across various medical specialties, and I’m deeply committed to promoting wellness through compassionate, patient-centered care. I hold a bachelor’s degree in healthcare administration and am certified in phlebotomy, personal training, and nutrition.
Caring for people isn’t just what I do—it’s who I am. My passion for health extends beyond the clinical setting, and I take a holistic approach to wellness, always considering the whole person, not just the symptoms.
