• 415-671-6400    
  • info@pmofp.com  
  • 2100 Webster Street, Suite 416, San Francisco CA 94115



Dr. Bornfleth is the Founder and Medical Director of Preventive Medicine of the Pacific. He earned his medical degree from the George Washington University School of Medicine in Washington, D.C. After completing his residency, he worked in private and university clinics throughout California, including Palm Springs, Los Angeles and San Francisco.

He is a Board Certified Internist with over 10 years of experience in Medicine. Dr. Bruce is also certified in Advanced Bioidentical Hormone Replacement Therapy and Nutrigenomics by Worldlink Medical Academy of Preventive and Innovative Medicine.

Dr. Bruce has a keen interest in physical fitness and nutrition. His love for medicine led him to uncover a passion for wellness and preventative medicine. As such, he founded Preventive Medicine of the Pacific in 2019. He provides safe, evidence-based, customized treatments to every patient.

Combining state-of-the-art specialized lab testing, a comprehensive physical exam, and an extensive interview, Dr. Bruce will develop your personalized functional medicine program; a multi-disciplined approach that may include bioidentical hormone therapy, fitness, nutrition, nutrigenomic and pharmacogenetic testing, as well as integrative and traditional medicine, supplements, and vitamins and minerals.

Dr. Bruce understands the importance of looking and feeling your best, and he is committed to helping every patient reach their goals.


Dr. Bruce inspires his patients to maximize their vitality and find true health by combining integrative and traditional approaches to medicine using the latest in bioidentical hormone optimization, nutrigenomic and pharmacogenetic testing, and fitness and nutrition. Dr Bruce is located in Dr. Zanelli’s Dermatology practice on the 4th floor of the Pacific Professional Building at 2100 Webster Street in San Francisco. Together, Dr. Bruce and Dr. Zanelli unite the best of Western and Natural medicine, helping patients reach their full potential and add life to their years. Through customized healthcare solutions, and meticulous aesthetic enhancements, Dr. Bruce and Dr. Zanelli strive to provide the highest caliber of care while connecting with each individual in a significant way.