Longevity Medical Center in Ojai, California is the practice of Dr. Hans D. Gruenn, MD — a German-trained internist, published author, and internationally recognized lecturer who has spent more than three decades pioneering integrative and preventive medicine in the United States. Combining the rigor of conventional internal medicine with the depth of functional and holistic approaches, Dr. Gruenn takes a whole-system view of health — looking upstream at the complex web of physiological, lifestyle, and environmental factors that drive disease rather than simply treating its downstream symptoms. His Ojai practice draws patients from across Ventura and Santa Barbara Counties, offering a calm and reflective setting that complements his deeply personalized, mind-body approach to longevity care.

About the Physician

Dr. Hans Gruenn earned his medical degree and doctorate (PhD) from the University of Heidelberg in Germany, completing his Internal Medicine residency at Mannheim Hospital and his Fellowship in Psychosomatic Medicine at Bad Duerkheim Medical Center. He conducted postgraduate training at LA County/USC and received his California Medical License in 1992. He served as Medical Director of the Center for Integrated Medicine in Santa Monica and Rosabell Medical Group in Los Angeles before founding Longevity Medical Center in West Los Angeles and Ojai in 1998. Dr. Gruenn is the author of a bestselling book on self-healing published in Germany and creator of a self-help audio series spanning more than 40 titles. He has lectured on preventive medicine and psychoneuroimmunology across the United States, Germany, and Japan, establishing himself as a leading voice in integrative and mind-body medicine on both continents.

Services Offered

• Longevity Medicine — Comprehensive, personalized longevity programs integrating anti-aging medicine, hormone optimization, nutrition, and advanced therapies to extend healthspan and vitality.
• Brain Health — Targeted protocols addressing cognitive function, memory, neurological vitality, and psychosomatic medicine, drawing on Dr. Gruenn's fellowship training in psychosomatic and mind-body medicine.
• Hormone Replacement Therapy — Women & Men — Individualized hormone optimization for women navigating perimenopause and menopause, and for men dealing with andropause and testosterone decline.
• Heavy Metal Detoxification — Systematic heavy metal testing and evidence-based detoxification protocols to remove toxic burdens affecting metabolism, cognition, and immune function.
• Antioxidant & Nutrient Therapies — IV and oral antioxidant therapy, vitamin and mineral infusions, and targeted nutritional support tailored to each patient's biochemical needs.
• Medical Weight Balancing — A holistic approach to sustainable weight management incorporating hormonal assessment, nutritional counseling, metabolic evaluation, and lifestyle medicine.
• Intermittent Fasting Protocols — Medically supervised intermittent fasting programs designed to reduce inflammation, improve metabolic health, and promote cellular renewal.
• Family Constellation Therapy — A unique offering reflecting Dr. Gruenn's psychosomatic training: systemic therapeutic work exploring family dynamics and relational patterns as drivers of physical and emotional illness.

What to Expect

Dr. Gruenn's Ojai practice is located at 530 W Ojai Ave, Suite 107, Ojai, CA 93023. Call (805) 633-9121 to schedule. A Los Angeles location is available at 12301 Wilshire Blvd, Suite 315; call (310) 699-4199. Visit drgruenn.com to learn more and connect.