Sandra Caldwell CoolSculptingCertified Supervising Laser Instructor & Technician, Certified Advanced Ultherapist, Licensed Medical Aesthetician, Advanced Lumenis M-22 and ResurFX Training Sandra has over twenty years of experience in Medical Aesthetics, Laser Treatments & Instruction, Customer Service, and Retail Operations. As the Practice Director, she is committed to exceeding patient expectations and giving outstanding personal service. Sandra has advanced certification in: Laser Technology, CoolSculpting, Ultherapy, Venus Legacy, Venus Viva, MonaLisa Touch, Pollogen Legend/Voluderm, CO2 Pixel and BBL/IPL Photofacial. Sandra is the Laser Safety Officer at Blume Skin & Body and is the Laser Instructor at our laser and injectable school. The Scottsdale Laser & Injectable Institute is located within Blume Skin & Body. Sandra has structured the laser classes to be small and personalized with intimate hands-on training. The school has the highest rated most popular lasers and aesthetics equipment available. Sandra also has a Bachelor of Science Degree in Business Administration from San Jose State University.

In her free time, Sandra loves to travel with her husband and dogs (a lab and two beagles) and spending time with and her granddaughters Abigail and Isabel.


Julie is a Registered Nurse with over 8 years of experience in Aesthetic Nursing, ICU, Trauma/Emergency Department, and Outpatient Surgery. Julie has received advanced training in Aesthetic Injections, PRP Hair Restoration, Emergency Medicine, Naturopathic IV infusion and wound care. Julie has been an Injection Trainer and loves sharing her knowledge with her peers.

 Julie has an art background and uses her knowledge of balance and proportion in the treatment room. Julie strongly believes that aesthetic injecting is an art form and applies her artistic skills to achieve natural results. 

Julie is married to her high school sweetheart and together they have two children and two dogs. Julie enjoys hiking, camping, cooking, reading and painting. 


Danielle has over 10 years of experience in the medical field. She began her career in Southern California and relocated to Arizona in 2014 to pursue further education. After receiving her RN from Pima Medical Institute, and working in both sub-acute and acute settings, including the ICU at Barrow Neurological Institute, she made the switch to medical aesthetics in 2017.

As an aesthetic nurse, she specializes in cosmetic procedures including a variety of different laser and restorative treatments. Her advanced training in cosmetic injecting gives her experience with many types of fillers and wrinkle relaxing products. She considers injecting a science as well as a form of art, where she provides a uniquely personalized cosmetic experience for her clients.

Her profession is truly her passion, where safety, detail, quality and natural results are of the utmost importance. Her goal for every client is, to leave looking like a “refreshed” version of themselves.


Caitlin Sixbey medical aesthetician scottsdale arizonaCertified Laser Technician, Certified Advanced Ultherapist, Certified Microblade Artist, Advanced Lumenis M-22 and ResurFX Training

Caitlin has been a certified Medical Aesthetician and Laser Technician for ten years. She has been with Blume Skin & Body for over four years. Blume Skin & Body patients rely on Caitlin to provide medical grade facials and customizing their skin care routine. Caitlin has received advanced training and certification in the following: Ultherapy, Venus Legacy, Sciton BBL, Photofacials, Pollogen Legend +, Venus Viva, Radio Frequency Skin Tightening, Radio Frequency Resurfacing, Radio Frequency Microneedling, Microblading, Certified Phlebotomist. Caitlin is an expert in: Chemical Peels, Dermasweep, Plasma Rich Protein (PRP) and Microneedling.

Caitlin is originally from Rochester NY, in her free time, Caitlin likes to hike, take new fitness classes, go to movies, and spend time with her family and kitties.


Dr. Martin Blume has been in practice since 1980. He is a graduate of Philadelphia College of Osteopathic Medicine and Arizona State University where he received a Masters Degree in Business Administration and is Board Certified. With his extensive experience in cosmetic injections, Dr. Blume has instructed at all levels of injection techniques for over a decade. He is an approved instructor for Allergan, makers of Juvederm and Botox, and has trained and mentored our expert injectors.

Dr. Blume is Certified Advanced Injectable Instructor at our Scottsdale Laser & Injectable Institute. Dr. Blume is an excellent instructor for novice to advanced injectors. He trains doctors and nurses wishing to learn or improve their skills at the art of facial injections. Dr. Blume is the medical director and supervises the staff at Blume Skin & Body.

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