Our Staff
Medical Director
Ann Nolen, D.O., grew up in Houston and graduated from Lamar University before attending medical school at the University of North Texas Health Science Center. She is board-certified in both family practice and anti-aging and regenerative medicine. In addition, she is a member of both the American Academy of Cosmetic Surgery and the American Society for Laser Medicine and Surgery. Though she has always practiced family medicine, her interest in anti-aging has led her to medical aesthetics. She is trained in Botox and Dermal Filler injection techniques and has over seven years of injectable experience. Dr. Nolen truly enjoys helping people regain their youthful appearances through the advanced cosmetic and aesthetic procedures available today. She looks forward to helping you look your best.
Senior Laser Technician
Laura Whitley, M.A., Certified Laser Technician, is from Fort Worth and has spent most of her career as a medical assistant. For the past 14 years she’s worked as a laser technician for several of the most successful med spas in the DFW area, most recently as the laser technician for a dermatologist in the Baylor Hospital complex in Grapevine. We are so excited to have Laura as a member of Calista. She has an incredible amount of experience in virtually every aspect of aesthetics. Our Colleyville clients will be pleased that Laura is back!
Center Nurse
Tracey Breadner, R.N., is originally from Canada and has spent the last 20 years in Texas. She has been a nurse for 24 years and, for the past 10, worked in day surgery and ambulatory care units. She joined the parent company of Calista last year as the center nurse for Physicians Weight Loss Center (adjacent to Calista). Tracey has made a lifelong commitment to health and fitness. Not only does she look forward to her daily exercise routine but also enjoys all of the great outdoor activities at her second home in Taos, New Mexico.
Tattoo Laser Technician
Sam Schildgen grew up in Colleyville, Texas, where he graduated from Grapevine High School in 2006. In 2011 he completed a bachelor’s degree in general business from Hawaii Pacific University. As a teenager he was on the Junior National Triathlon team and was one of the top young cyclists in the country. As most young adults today, he appreciates tattoos and is impressed by quality artwork. However, with the current popularity of tattoos, he recognized that some people may later decide to change or remove their body art. As a result, he completed extensive training in laser tattoo removal and now helps clients eliminate their ink.
Medical/Aesthetic Technician
Joann Brawner, M.A., grew up in Texas and is the proud mom of two young men. For the past 20 years, she has worked as a hairstylist/salon owner. In addition to being a licensed hair stylist, she has also been trained in many aesthetic procedures. This past year she went back to school for training to become a medical assistant. She too will be working at both the Physicians Weight Loss Center and Calista. Joann enjoys working with people and finds it very rewarding to help them accomplish their cosmetic and aesthetic goals.
Owner/General Manager
Dan Schildgen grew up in the north suburbs of Chicago. He graduated with a Bachelor of Science degree in biology from The University of South Florida. Dan spent his entire career in veterinary pharmaceuticals with two companies that specialized in allergy and dermatology. He founded Vet Solutions, a successful Animal Health Company with worldwide sales that was ultimately acquired by Vetoquinol, an Animal Health Company based in Lure, France. Recently, he opened the Physicians Weight Loss Center in Colleyville (adjacent to Calista). “The idea to open Calista became a natural fit since the demographics are virtually identical between weight loss and aesthetics clients,” Dan said. His greatest satisfaction is “helping people feel more confident about their appearance, ultimately seeing them become happier and more outgoing. As a result, they lead more active and healthier lifestyles.”