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The staff at LeDerm® are licensed, registered professionals with many years of experience. We constantly collaborate with one another and regularly attend training to bring our clients the latest in skincare technologies.

Mary McCallum, RN



Mary's primary interest is in promoting her clients' health and well-being through making them look and feel their best. As a registered nurse, Mary’s extensive service and experience in Boston's largest hospitals (Brigham and Women’s, Mass General, and Spaulding Rehabilitation Hospital) in the fields of surgical nursing, case management, patient advocacy, and health care marketing has given her a deep understanding of the medical community and patients' needs.


In addition to her extensive medical knowledge, Mary also developed strong aesthetics skills derived from a fine arts background (Rhode Island School of Design and Tufts University), and combined these skills and knowledge make her among the most highly rated practitioners in the Boston area. 


Mary founded LeDerm Laser and Medical Aesthetics in 2006 and has trained with many plastic surgeons in the US and Canada. As a certified laser trainer, she specializes in the latest laser rejuvenation technology as well as injectable dermal fillers, Kybella and neurotoxins (Botox). She has also been an associate member of the American Society for Laser Medicine and Surgery for 10 years, a member of the Dermatology Nurses Association, American Academy of Medical Esthetic Professionals, and is certified in medical cosmetics by the Aesthetic Institute of Massachusetts and Esthetic Skin Institute.

Luz Hernandez

Master Medical Aesthetician


Luz (Lucy) has worked at several of Boston 's top medical spas and with many known physicians. She believes that an investment in the skin lasts a lifetime and that the connection with clients is based on trust. The personal attentions she provides to each client to satisfy their needs and requests are her priorities. Providing service with results is not only her goal but she also goes the extra mile with Customized Client Consultations at each visit, making your LeDerm experience  enjoyable, relaxing and rejuvenating.


She has 19 years experience and her skill set ranges from Laser treatments, Venus Freeze, Micro-Needling, Medical Grade Facials, Chemical Peels, Microdermabrasion, and Ultrasonic Facial services.


She takes a great deal of pride in each client's customized treatment for the ultimate LeDerm experience.

Dawn Gera



Dawn is a highly skilled licensed and certified electrologist. She has been with LeDerm for 18 years and has a large and loyal following.



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