About Us
Ashley Albinder, FNP-C
Ashley is a board-certified Family Nurse Practitioner with more than a decade of experience in healthcare, much of it spent in busy emergency departments throughout San Diego.
After years of meeting people on some of their hardest days, she found herself wanting to practice medicine in a way that felt lighter, more personal, and more positive. Luma Aesthetics grew from that idea—a place where patients can feel cared for, supported, and genuinely excited about doing something for themselves.
Ashley’s approach is warm, honest, and down-to-earth, with the goal of helping each patient feel more balanced, refreshed, and confident.
Dr. Guillermo Castillo, MD
Dr. Castillo has a uniquely well-rounded perspective in the business and delivery of healthcare. Passionate about encouraging the persistent evolution of our healthcare system not only from the patient experience pathway but also from the physicians’ perspective as they are the key to improved health outcomes and the abolition of racial disparity in healthcare. With more than two decades of experience, Dr. Castillo has developed an expertise in functional and regenerative medicine.  His studies in nutrition science have been the perfect infrastructure for an obsession with root-cause medicine.  Dr. Castillo is committed to helping everyone he comes in contact with achieve their health potential.  A better tomorrow starts with a simple choice today!
Kensington, San Diego
Kensington is one of San Diego’s most charming neighborhoods, known for its historic character, tree-lined streets, local restaurants, and iconic neighborhood sign. It has a warm, community-focused feel while still being close to everything the city has to offer.
Luma is proud to call Kensington home and be part of a neighborhood that feels both timeless and welcoming—just the kind of place we wanted to create something personal, elevated, and approachable.