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4 providers
Availability last updated 05/07/2025
The Longevity Collective is where wellness meets innovation, empowering adults across Marin County to live vibrantly and age with confidence. Nestled in the heart of Fairfax, California, our practice isn’t just a clinic—it supports your lifestyle. Each treatment is here to revive, destress and reenergize your body and mind.
We have state-of-the-art treatments grounded in science yet driven by our belief that age is just a number. The Longevity Collective team offers a dynamic suite of services: red light therapy, acoustic soundwave therapy, cranial therapy, peptide therapy, concierge medicine and pulsed electromagnetic field (PEMF) therapy. With the effectiveness of our cold plunge tubs followed by an infrared sauna, every visit is an experience of self-renewal tailored to your wellness needs.
Sessions here aren’t just an appointment. We offer new anti-aging and wellness experiences and we won't rush you out. We want to support your wellness goals. Our team will listen to your needs and recommend a plan that is right for you. Whether it’s alleviating pain, restoring energy, rejuvinating your skin, or talking with Dr. David Baldini, every recommendation is designed with one goal: to unlock the energy and vitality of every person who walks through our doors.
Start your journey with The Longevity Collective today—where each of our unique treatments brings you closer to your health goals. Call the office or request a consultation online today.
James Slezak, MD
Surgeon
771 Center Blvd
Fairfax, CA 94930
Dr. Melissa Loja, MD, MAS, FACS, FSVS, RPVI, completed medical school at the University of California at Davis. She went on to be among the first in the nation to complete a specialized integrated vascular surgery residency program at the University of California at Davis. Dr. Loja was selected for the highly competitive NIH funded T32 research grant, which led to widely cited publications. She attained a Master's degree in Clinical and Translational research from these efforts. In addition, she holds a Bachelor's degree in Biologic Sciences, also obtained at the University of California at Davis. Dr. Loja specializes in vascular and endovascular surgery, including carotid artery disease, aneurysm repair, dialysis access, treatment of mesenteric and renal artery disease and lower extremity revascularization. Among her clinical interests, limb salvage and peripheral arterial disease with a multidisciplinary focus is a particular passion of hers. She is expertly trained and highly skilled in endovascular as well as surgical management of peripheral arterial disease.
Dr. Melissa Loja, MD
Surgeon
2301 Camino Ramon
Suite 290
San Ramon, CA 94583
Rudolf "Rudy" Buntic, MD, is a skilled plastic, hand, and microsurgeon at SOAR Spine and Orthopedics in Redwood City, California. His clinical interests include reconstructive microsurgery, focusing on the reconstruction of traumatic injuries and defects caused by cancer.
A native of Canada, Dr. Buntic completed his post-graduate residency in general and plastic surgery at Stanford University in Palo Alto, California. He also completed a fellowship in hand and microsurgery at Davies Medical Center in San Francisco with esteemed doctors Harry and Gregory Buncke.
Dr. Buntic is board-certified in Plastic Surgery and hand surgery by the American Board of Plastic Surgery. He is an Associate Professor in Plastic Surgery at Stanford University Medical School and a member of the University of California, San Francisco's Clinical Faculty. He is a member of several societies, including the American Association of Plastic Surgeons, the American Society of Plastic Surgeons, and the American Society for Reconstructive Microsurgery. Dr. Buntic has presented and published several scientific articles and book chapters related to various plastic, hand, and microsurgery topics.
Dr. Rudolf Buntic, MD
Surgeon
400 Seaport Court
Suite 201
Redwood City, CA 94063