Functional medicine
Experience The Best And Most Trusted
Doctors For Functional Medicine in Carlsbad Today.


Medical rejuvenation is a transformative approach to restoring energy, vitality, and overall well-being by addressing the root causes of aging and imbalance. Through a combination of advanced integrative therapies, including bioidentical hormone replacement, ozone therapy, peptide therapy, and glandular extracts, medical rejuvenation helps enhance natural healing, boost immunity, and optimize body function. Whether you're struggling with fatigue, hormone imbalances, chronic conditions, or simply want to feel younger and healthier, medical rejuvenation provides personalized, science-backed solutions to help you achieve optimal health and peak performance.

IV therapy is a fast and effective way to replenish essential nutrients, boost energy, and enhance overall wellness by delivering vitamins, minerals, and hydration directly into your bloodstream. Whether you’re looking to recover from fatigue, strengthen your immune system, improve athletic performance, or combat the effects of stress and dehydration, IV therapy offers a customized solution for optimal health and vitality. With rapid absorption and long-lasting benefits, this treatment helps you feel refreshed, recharged, and ready to take on life.

Immunotherapy at Quantum Functional Medicine in Carlsbad, California, offers a targeted approach to restoring immune balance and enhancing your body’s natural defenses. Whether you need immune activation to fight chronic illness or immune suppression to calm an overactive response, our customized treatments support conditions like autoimmune diseases, Epstein-Barr virus (EBV), Lyme disease, rheumatoid arthritis, allergies, and more. We offer low-dose immunotherapy (LDI) to build immune tolerance and peptide immunotherapy for precise immune modulation, helping your system function optimally.

Chronic illnesses like Lyme disease, fibromyalgia, heart disease, and cancer require more than just symptom management—they demand a personalized, root-cause approach to healing. At Quantum Functional Medicine in Carlsbad, California, we specialize in integrative treatments that support your body’s natural healing process, helping you regain energy, reduce symptoms, and improve overall well-being. Through advanced diagnostics, IV therapy, peptide therapy, detoxification, bioidentical hormones, and functional nutrition, we create customized treatment plans designed to restore balance and enhance long-term health.



Juergen Winkler, MD is an integrative medicine specialist serving patients at Quantum Functional Medicine in Carlsbad, California. He has over 33 years of experience in the medical field and founded the integrative functional medical clinic in July 2012.
He graduated from the University of Maryland School of Medicine in Baltimore in 1988. In 2005, he co-founded Genesis Health Systems (Integrative Cancer and Medical Treatment Center) located in Oceanside, California. At Quantum Functional Medicine, Dr. Winkler provides a wide range of services, including medical rejuvenation, bioresonance therapy, cardiovascular therapy, IV therapy, sports medicine, and more.
Dr. Winkler has been a featured speaker for the NSCC Women’s Health Seminar, Annual IPT/IPTLD Integrative Cancer Care Conference (multiple years), Health Freedom Expo 2011 & 2012, Japanese Society of Oxidative Medicine in Osaka, Japan, ACOSPM 2010 and 2011 conferences, NSCC Health and Wellness Series 2013, and various other events. He is the physician author of chapter five in the book “Defeat Cancer” and has been a featured physician in the Townsend Letter.
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Dr. Farah is a Licensed Naturopathic doctor and Registered dietitian with a background in psychology and functional nutrition. She completed her undergraduate work at Pepperdine University and her graduate work at New York University, ultimately obtaining her Doctorate from the esteemed Bastyr University, California.
Dr. Farah believes in the whole-body approach to healing and assessing the root cause of any illness. She believes in the bodies innate ability to heal and the importance of nutrition and lifestyle in overall health and longevity.She has a special interest in gastrointestinal health, hormone management, regenerative therapies, cardio-metablolic health, diabetes, neurodegenerative diseases, rare diseases, as well as chronic complex disease states including Long COVID, mold and Lyme disease.
Through her own struggles, emerged her love for helping others discover how to fix their imbalances to ultimately have a greater quality of life. She has an unquenchable thirst to learn, constantly seeking new knowledge, research, and techniques, and she uses that wisdom to guide and empower those in search of a healthier, more vibrant life. Her journey fuels her passion, allowing her to connect deeply and inspire others.