Why choose PISO Medical?

At PISO Medical, we are committed to providing personalized, high-quality care tailored to your unique health needs. Here’s what sets us apart:

Comprehensive Services: From general medicine to advanced therapies like stem cell and mistletoe treatments, we cover a wide range of health solutions.
Expert Team: Our experienced physicians and specialists ensure top-notch care.
Personalized Approach: Every treatment plan is customized to meet your goals and lifestyle.
Innovative Care: We use cutting-edge technologies and holistic methods to improve your health and well-being.
Convenient Access: Located in Mesa, Arizona, we offer flexible appointments and a patient-friendly environment.

Contact us today to experience healthcare that prioritizes you.

Meet the Staff

Jillana Michelle FNP-BC

Jillana Michelle is a dual board-certified Family Nurse Practitioner with over 12 years of experience spanning emergency medicine, critical care transport, hospice, integrative medicine, hyperbaric therapy, ketamine-assisted therapy, men’s health, and functional psychiatry. Her background allows her to combine strong clinical decision-making with deeply personalized, whole-person care.
Her care style is collaborative, trauma-informed, and education-focused. Jillana believes patients heal best when they feel heard, understood, and actively involved in their care. She blends evidence-based medicine with integrative and environmental approaches, considering lifestyle, hormones, nutrition, environmental exposures, and nervous system health alongside labs and clinical findings. Her goal is not just symptom relief, but helping patients build sustainable health and resilience.
She was drawn to integrative and functional medicine through both professional experience and her own health journey, which taught her how profoundly chronic stress, infections, and environmental factors can affect the body. This led her to pursue advanced training Fellowship in integrative psychiatry, and ongoing education through organizations such as MAPS, ILADS-aligned programs, and the American Academy of Environmental Medicine (AAEM). She is especially passionate about supporting patients with complex chronic illness, including Lyme disease and mold-related conditions.

Outside of medicine, Jillana enjoys strength training and Pilates, being outdoors, traveling, live music, and exploring new wellness practices. She values meaningful connection, lifelong learning, and bringing both skill and heart into everything she does.

Dr. Bonnie Wick, ND

Dr. Bonnie Wick holds a Bachelor’s in Nursing and a Doctorate in Naturopathic Medicine from Sonoran University. She provides comprehensive, personalized care to patients, frequently working with those managing heart conditions and cancer. Dr. Wick’s approach is rooted in a holistic philosophy, treating individuals as a whole rather than focusing solely on their conditions. By addressing the underlying causes of health concerns, she aims to promote long-term wellness and healing. Dr. Wick values the power of integrative medicine, prioritizing patient safety and well-being to achieve the best possible outcomes

Dr Lillian Foster, DNP, PMHNP

Lillian Foster is a compassionate and dedicated Nurse Practitioner with a Doctor of Nursing Practice (DNP) degree from Arizona State University. She is also a Board-Certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC).

With extensive clinical experience in primary care, nephrology, cardiology, and substance use disorder treatment, Lillian brings a rich and diverse background to her practice. Her approach combines the patient-centered philosophy of nursing with an in-depth understanding of both physical and mental health, enabling her to address the whole person—not just the symptoms.

Lillian is passionate about integrative care that blends conventional medicine with holistic therapies to support healing from the inside out. She is committed to empowering her patients on their journey toward lasting wellness, helping them become the healthiest and most authentic version of themselves. Her mission is to heal both mind and body, guiding each individual toward their best possible outcome and future.

Your Health, Our Priority.

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Your Health is in the Best Hands!

At PISO Medical, our team is the heart of what we do. Comprised of highly trained professionals, each member is committed to delivering exceptional care with compassion and expertise.

Experienced Physicians: Our doctors bring years of experience across multiple specialties, ensuring you receive top-quality medical attention.
Skilled Specialists: From regenerative medicine to oncology support, our specialists use advanced techniques to address complex health concerns.
Compassionate Nurses: Providing attentive and personalized care, our nursing team ensures your comfort and well-being at every step.
Supportive Staff: From scheduling your appointment to answering your questions, our administrative team is here to make your experience seamless and stress-free.

At PISO Medical, our team works collaboratively to ensure you receive comprehensive, personalized care. We are here to support you on your journey to better health.