Jill Costello
Clinical Specialist
Jill Costello is a highly experienced Clinical Specialist with more than 17 years of expertise in advanced non-invasive body contouring, clinical skincare, and aesthetic technologies. She is extensively trained and advanced-certified in leading treatments including CoolSculpting®, Ultherapy®, Laser Hair Removal, Clear + Brilliant®, CoolTone®, Microneedling, and truSculpt® 3D. Jill has completed specialized training through Merz Aesthetics, Solta Medical, and truSculpt®, and continues to expand her knowledge through ongoing in-house education alongside Signature’s physicians and clinical team.
Jill holds an Associate Degree in Science, providing a strong foundation in clinical precision, safety, and patient care. Known for her meticulous attention to detail, commitment to patient education, and compassionate approach, she ensures every client feels informed, confident, and supported throughout their aesthetic journey.
Since joining Signature Medical Spa in 2008, Jill has become an integral member of the practice. She is widely regarded as a trusted clinical partner, playing a key role in delivering consistent, high-quality outcomes through advanced, personalized treatment approaches.
