Meet Our Providers

Jeffrey H. Binstock, MD

Dr. Binstock
Practice Founder
Mohs, Laser, and Aesthetic Dermatology
Board Certified Dermatologist, Fellowship Mohs Surgeon UCSF
Clinical Professor Dermatology UCSF [Volunteer]

More About Dr. Binstock

Debi Layton, MD

Debi Layton, MDAesthetic Dermatology welcomes Debi Layton, MD to our practice. Dr. Layton joins us after having practiced for the last 6 years in Scottsdale, Arizona. Dr Layton is a board certified Dermatologist who specializes in Aesthetic and General Dermatology, Mohs Surgery, Lasers, and Cosmetic procedures. She received her Medical Degree from the University of Arizona College of Medicine in Tucson, Arizona. Dr. Layton completed her Dermatology Residency at New York Medical College and Metropolitan Hospital in New York, New York. Her training had a strong focus on Cosmetic Dermatology and Mohs Micrographic Surgery. She also completed a Dermatopathology Fellowship at Albert Einstein College of Medicine and Dermpath Diagnostics in Bronx, New York, and a fellowship in Photodynamic Therapy and Lasers at Roswell Park Cancer Institute in Buffalo, New York. Dr. Layton is Board Certified by the American Board of Dermatology and is Board Eligible for the American Board of Dermatopathology. Professional memberships include American Academy of Dermatology and American Society Mohs Surgery. In her free time, she enjoys spending time with her family, traveling, skiing, scuba diving, running and hiking. Dr. Layton will be seeing patients in both our San Francisco and Mill Valley offices.

Stephanie Cullinane, PA-C

Stephanie Cullinane, PA-CStephanie Cullinane joined Aesthetic Dermatology in 2001. She is a nationally certified physician assistant (PA-C) and a Fellow of the Society of Dermatology Physician Assistants. Stephanie graduated from Stanford University School of Medicine’s Primary Care Associate Program in January, 2000 and obtained her BA from Smith College. Before specializing in dermatology, she worked in internal medicine and gynecology. Stephanie specializes in medical, including skin cancer screening and treatment, and cosmetic dermatology. She sees patients in the Mill Valley and San Francisco offices.

Tammy Yim, Aesthetician

Tammy-Yim Tammy Yim is a licensed aesthetician with over 15 years of experience with Aesthetic Dermatology. Tammy specializes in anti-aging and acne treatments—including rejuvenating peels, microdermabrasion, and facials. She is also extremely knowledgeable with all skincare products and their application. Most importantly, Tammy loves her line of work and thoroughly enjoys helping people with their skin and skincare needs!

For the past 15 years, Tammy has also been a dedicated volunteer with the American Cancer Society’s “Look Good, Feel Better” program in San Francisco. This beneficial program is designed to help cancer patients “look good and feel better” while undergoing cancer treatment.

Tammy received her Bachelor of Fine Arts from the University of Washington, Seattle, WA, and received her aesthetician training and license from Zenzi’s Beauty Academy in San Francisco, CA.

San Francisco Office Staff

San Francisco Dermatology Group

S. Cullinane, PA-C; J. Binstock, MD; Debi Layton, MD

Mill Valley Office Staff

Mill Valley Office Staff



Visit Our Locations

We are proud to offer our services in two locations in Bay Area San Francisco & Mill Valley. Both locations offer a full list of our services and are equipped with state-of-the-art facilities. Please visit our Locations page for Directions and Hours of Operation.