Dr. Serena Mraz

Medical Director, FAAD

Serena Mraz, MD, FAAD is a full-time dermatologist in private practice at Solano Dermatology Associates in Northern California. Her practice contains a mixture of cosmetic dermatology, general and surgical dermatology, and phlebology. Dr Mraz received a Bachelor of Science degree from Santa Clara University and a medical degree from Tufts Medical School. She is board certified in dermatology and internal medicine. Her residency and fellowship training was at Stanford and University of California, San Francisco with strong emphasis on surgical and procedural dermatology. She is energized and is passionate about dermatology, her patients, and embraces opportunities for personal growth as well as the opportunity to improve the lives of her patients through both directed treatments and overall wellness counseling.

Sandi Selig Farney

R.N. B.S.N.

Sandi is the “heartbeat” and co-founder of Mt Tam Laser, established in 2004. With advanced certification in all laser treatments and unparalleled experience with injectable solution and skincare products, Sandi is able to customize and administer an individualized care plan to meet your aesthetic needs. Sandi and her husband have raised 3 children in Marin County, and you may find them all on the trails of Marin with their beloved Rottweiler, Eddy. Sandi invites you to visit us for the care and guidance you need to “help you look and feel your very best!”

Karen Rehder

R.N., B.S.N., M.P.H, FNP-BC

Karen is a Nationally Board Certified Nurse Practitioner and a member of the International Society of Plastic and Aesthetic Nursing (ISPSAN). She also has her Masters in Heath Promotion and Disease Prevention.
Karen resides in Marin where she has raised her children, and enjoys gardening and biking. In her free time, Karen also loves volunteering for the Marin LIV Mt Bike Team where she coaches women to be safe and have fun on their bikes.
Her lifelong passion has been helping people become the best that they can be!

Julia Isen


Julia Jacobs is a Family Nurse Practitioner and Associate Clinical Professor in the Family Nurse Practitioner Program at UCSF . Julia has over 20 years experience providing primary care, Women’s Health Care and Urgent Care medicine to patients in the clinical setting. Julia is deeply committed to providing comprehensive and personalized care to her patients in the areas of preventative care, acute care and chronic care. In addition, Julia has a special interest in aesthetic dermatology. She also has 8 years of experience in aesthetic medicine. She is trained in using multiple lasers, and providing skin care treatments such as Dermapen, IPL , medical grade peels, Botox® and Juvéderm®.

Heather Lincoln


Heather is a licensed esthetician and has over 20 years’ experience in the industry. Along with her experience, she brings her positivity, skills, innovation, and results driven services to Mt. Tam Laser and Skincare. Heather loves to provide safe and effective treatments that shift the way your skin looks and feels. Come enjoy microdermabrasion, anti-aging peels, and a wide range of facials.

Lisa Newman

Patient Coordinator/Office Manager

Lisa has been with Mt. Tam Laser and Skin Care for 9 years now. She is responsible for all patient scheduling and is the first person you will meet when you call to schedule your appointment. In addition to working with patients, she maintains the Spa’s product inventory and also serves as the general Office Manager.

Linda Abusway

Patient Coordinator/Front Office.

Linda is a professional in the restaurant industry. However, she fills in for Mt Tam Laser & Skin Care's front office when needed.