Dr. Guillermo Castillo, MD

Dr. Guillermo Castillo, MD, is a Board-Certified Family Medicine physician with nearly 20 years of clinical experience. He completed his residency at the University of San Diego Medical Center and has since built a career that blends preventive care, integrative medicine, and aesthetics.

Dr. Castillo is passionate about helping patients look and feel their best through a personalized, whole-person approach. His expertise spans every aspect of the healthcare delivery system, giving him a unique perspective on patient care. By integrating the latest advances in genomics, technology, and aesthetic treatments, Dr. Castillo designs individualized health and beauty solutions that enhance both wellness and confidence.

Patients value his commitment to combining modern medicine with advanced aesthetic procedures, making him a trusted leader in San Diego aesthetic medicine.


Janet Sansano, RN

Janet earned her Bachelor of Science in Nursing (BSN) in the Philippines and has been a Registered Nurse for over 20 years. She has worked at Ageless and Beautiful since 2006 and has been part of the cosmetic surgery industry since 2004.

As a valued member of the A&B team, Janet oversees the pre-operative process and ensures every patient is thoroughly educated about their procedure and recovery. Her empathy, compassion, and genuine understanding of each patient’s needs make her an essential part of the patient experience.

Janet is also an experienced nurse injector specializing in lip enhancement, facial and body contouring, skin tightening, laser hair removal, treatment of skin pigmentation, skin resurfacing, and the removal of superficial veins. She is committed to ongoing education and regularly attends advanced trainings and seminars to stay current with the latest techniques and technologies.

In her free time, Janet enjoys staying active and spending time outdoors. She loves being with her family — and most of all, playing with her puppy, Bentley.