About Us
Welcome to West Valley Medical Aesthetics
Our office is located in Agoura Hills, California. West Valley Medical Aesthetics has been perfecting beauty and skincare with over 15 years of expert experience. We specialize in spa, beauty, and personal care with services including, but not limited to: facial rejuvenation, elite spa services & treatments, and IPL/skin resurfacing. We invite you to come and visit our office to schedule a consultation for any service of your choice. Schedule an appointment with one of our aesthetic nurse specialists or one of our WVMA professionals and start enhancing your natural beauty today!
Our Story
After 15 years of experience and passion working in the beauty industry, Karen Chamberlin first opened the doors to West Valley Medical Aesthetics in May 2016. She created West Valley Medical Aesthetics to aiming to portray a warm and welcoming atmosphere with a wonderful team. We specialize in facial rejuvenation using neurotoxins including Botox and Jeuveau, fillers from the Allergan Juvéderm collection (including Juvéderm Ultra, Ultra Plus, Voluma, Vollure, and Volux), Kybella, and Skinvive. We also offer specialized skin treatments including laser resurfacing, intense pulse light (IPL) laser, microneedling, microneedling with radio frequency, VI chemical peels, and laser hair removal. Our estheticians create a facial experience specifically for your skin type. Meet our wonderful team!
Our Team
Dr. George Graf, MD
Dr. Graf is board certified in internal medicine and anesthesiology, and also specializes in pain management. He has a considerable academic history, having been an Assistant Professor at both Yale and UCLA in the past. He has authored over a dozen book chapters, while producing a considerable amount of research articles as well. Dr. Graf and Karen teamed up 13 years ago to form West Valley Medical Aesthetics, Inc., and have been a dynamic duo ever since.
Karen Chamberlin, RN, BSN
Lynne Henderson, RN, BSN
Lynne is a highly educated Registered Nurse with more than 20 years of experience in the medical field. She attained a Bachelor of Science in Nursing (BSN) from Mt. St. Mary’s University in 1998 and holds a Bachelor of Arts in Communications from UC Santa Barbara. Lynne is certified through the Allergan Medical Institute’s Master Expert Program and has worked with several esteemed plastic surgeons before joining WVMA. Committed to staying at the forefront of her field, she regularly attends aesthetic conferences and trainings to refine her aesthetic art. Her career spans a range of specialties, including medical aesthetics, medical-surgical, telemetry, and perioperative nursing. Additionally, Lynne spent six years in corporate communications at biotechnology giant, Amgen, before transitioning into nursing. Outside of her professional life, she enjoys running and cherishing time with her four children and husband. You can checkout her amazing work on her Instagram, @ninjabeautyrn!
Hillary Sheffer, RN, BSN
Hillary was raised in Agoura Hills, and attended the University of Arizona. She has a Bachelor of Science in Nursing in addition to a Bachelor of Science in Speech, Language and Hearing Sciences. She currently lives in Westlake Village with her husband and their three sons.
Hillary became a Registered Nurse in 1998. She began working at a Plastic Surgery Center in the Operating Room, Recovery Room and performing cosmetic procedures, while also working in Pediatric ICU. In 2000, she began working in the Emergency Department and was there concurrently while joining our practice in early 2019. In 2022, she left the ER to focus solely on cosmetic nursing.
Debbie Sargent, RN, FNP
Debbie Sargent is a Nurse Practitioner with over 30 years of medical experience. She became an RN, BSN in 1978, and received her Master’s degree in 1984. She has worked in pediatrics, OB/GYN, college health, and aesthetics. Originally from Maine, Debbie and her husband moved to West Hills and have raised 2 daughters. Debbie and Karen are friends and neighbors; their daughters played soccer together!
Trisha Telford, RN, FNP
Trisha Telford joined the Westside Medical Aesthetics team in 2017.
Trisha brings with her experience in the fields of dermatology and endocrinology from previous jobs in the Los Angeles area. She graduated from USC School of Nursing in 2000 and earned her Master’s Degree in Nursing/Family Nurse Practitioner at UCLA in 2003. She received her training in the field of dermatology from the office of Dr. De Stefano in Calabasas, (now called “Dermatology Associates”), and provided skin care for patients both medically and cosmetically. Trisha has a warm and friendly approach to treating clients, always making them feel comfortable and welcome in our office. She works part-time, seeing new clients and evaluating their overall health and well-being before and during their procedures. We are so glad to have Trisha on our team!
Donna Messuri
Receptionist
Christina Hamor
Office Administrator
Christina is here to warmly welcome you and greet you with a friendly smile. She brings several years of experience within a medical spa, as well as previous experience working for a board certified plastic surgeon. She is here to help with all of your scheduling and administrative concerns. In addition to making sure everything is ready for your appointments, she’s always available to provide you with any information you may need.
Melissa Aardema
Esthetician
Melissa Travis Aardema brings to our office over 35 years of expertise in the skin care industry. In addition to her Esthetician license and a background in biology, Melissa is a Certified Aesthetic Medical Specialist (CAMS) which allows her to approach her facials from a medical perspective. In addition, Melissa has been an educator on product procedure and development on several skincare lines. She is always staying on the cutting edge of the skin care industry, constantly educating herself on new practices and continuing her mastery in the field.
Janna Williams
Esthetician
Janna Williams has been in the skin care and beauty industry for over 20 years. She prides herself on the ability to work with people of all ages and skin types to customize the best skin care regimen and treatments to meet their needs. Janna helps collaborate with our medical team to help her clients obtain the best results for their skin. She is a certified specialist with Epicuren and Obagi skin care lines. She uses and sells these products to help her clients have amazing results for better and healthier skin.