David A Laub, MD



Dr. David A. Laub is a Board Certified Dermatologist who specializes in medical, surgical and aesthetic dermatology.

After graduating from UCLA with Phi Beta Kappa and magna cum laude honors, he attended medical school at UCSD. He then completed his dermatology residency at Harvard Medical School along with additional plastic surgery training. Dr. Laub is a past assistant clinical professor at UCSF and presently on staff at Marin General Hospital.


Dr. Laub has been serving the Marin community since 1988.


He is a nationally recognized leader in the dermatology field. He is an author of many articles and scientific publications, has served leadership positions in various national dermatology organizations, and has been an invited lecturer for many medical conferences. He educates health professionals on medical conditions including pigmentary disorders and rosacea, psoriasis and skin cancers. He has been chair of multiple skin cancer screening events in Marin County sponsored by the American Academy of Dermatology and American Cancer Society. He is on multiple national advisory and educational panels, contributing to the development of new techniques including BOTOX®, Restylane® and several laser treatments.


In his spare time Dr. Laub enjoys spending time with his wife and two boys, golfing, dancing and photography.


Professional Societies:

American Academy of Dermatology

American Society for Dermatologic Surgery

American Society for Laser Medicine and Surgery

American Academy of Cosmetic Surgery

California Medical Society

Marin Medical Society

National Psoriasis Foundation


Anne Zhuang, M.D.


Dr. Anne Zhuang is a board certified dermatologist specializing in medical, surgical and aesthetic dermatology.

She received her undergraduate degree from Stanford University then received her medical degree from Duke University where she received a full merit scholarship. Dr. Zhuang then completed her dermatology residency at UC San Diego, and advanced fellowship training in Mohs Micrographic surgery and Laser surgery at UC Davis.


Dr. Zhuang’s areas of expertise include skin cancer surgery, with a focus on Mohs micrographic surgery, cutaneous reconstruction, laser surgery and medical dermatology.


In her spare time Dr. Zhuang enjoys skiing, hiking, cooking and singing.


Professional Societies:

American Academy of Dermatology

American Society for Dermatologic Surgery

Fellow of the American College of Moh’s Surgery

American Society for Laser Medicine and Surgery

Society for Investigative Dermatology

Pacific Dermatologic Association


Kate Ratto, N.P.

Kate Ratto graduated Valedictorian from the University of San Francisco School of Nursing in 1998. She then went on to obtain her Masters of Science in Nursing from the University of California San Francisco graduating Summa Cum Laude. Kate has been practicing as a Nurse Practitioner for the last 15 years. She has also completed extensive certifications and training in all areas of facial rejuvenation and continues to seek out the latest advances to further her education.


In her free time, Kate spends time with her 2 amazing daughters, plays soccer with her husband Jeff and practices yoga.


Christina Chan, R.N.

Ms. Christina Chan, R.N. specializes in cosmetic laser treatments including: Laser Hair Removal, Dual Fraxel Laser and IPL.

Ms. Chan received her B.S. in nursing from the University of San Francisco. With over ten years of laser treatment experience, she holds special certifications with Palomar, Solta, and Candela Laser companies.


When not working doing what she loves to do, Chrissy enjoys raising her beautiful twin girls.