Dr. Kathleen Welsh

Meet Dr. Kathleen Welsh

Double board-certified in dermatology and internal medicine, Dr. Kathleen Welsh is the founder of Bay Area Cosmetic Dermatology, a private dermatology practice and the largest cosmetic laser center in the San Francisco Bay area. Dr. Welsh is an award-winning Cosmetic Dermatologist, with expertise in injectable wrinkle fillers and relaxers, as well as innovative body-contouring and laser techniques. A former director of cosmetic dermatology and chief of dermatology for The Permanente Medical Group, Dr. Welsh offers decades of industry experience and knowledge of the latest and most advanced treatment methods. Ranked as one of the "Top 10 Dermatologists West" by Aesthetic Everything, Dr. Welsh helps patients repair and renew their skin for a beautiful appearance.


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Skills and Specialties

Dr. Kathleen Welsh’s Bay Area Cosmetic Dermatology practice is highly-equipped to perform skin rejuvenation and laser procedures that address and treat common and complex skin afflictions from acne treatments to laser tattoo removals and the latest wrinkle reduction techniques. Dr. Welsh is renowned for her mastery of injecting skin fillers, such as Juvéderm and Restylane, as well as wrinkle relaxers, like BOTOX and Dysport. Dr. Welsh is recognized as one of the first physicians to offer Juvéderm Voluma injections after participating in the clinical trials and is also one of a handful of Allergan’s Black Diamond status providers (the highest level in the country). Dr. Welsh is also a leader and top innovator in non-invasive body contouring, including CoolSculpting and laser hair removal. When she is not practicing, Dr. Welsh enjoys educating others on skin care by participating in lectures on general dermatology and cosmetic conditions.

Achievements and Affiliations

Prior to establishing her private practice, Bay Area Cosmetic Dermatology, in 2000, Dr. Kathleen Welsh served as the director of cosmetic dermatology and as the chief of dermatology for The Permanente Medical Group’s Kaiser Foundation Health Plan in San Francisco. During that time, she established and directed The Permanente Cosmetic Dermatology program, which is now used as a model for similar programs nationwide. 

Dr. Welsh has been selected as a Top Doctor by Castle Connolly every year since 2014 and named as one of the "Top 10 Dermatologists West" by Aesthetic Everything, the first social network for aesthetic professionals.

When Dr. Welsh is not administering treatments at her practice in San Francisco, she is often providing training and lecturing other professionals and students on the mastery of cosmetic dermatology, sharing her passion for skin and patient care.

non-profit support

Dr. Welsh lives in San Francisco with her husband, an emergency physician. She enjoys being in nature, skiing, and kite boarding. Dr. Welsh is active in the TIBA Foundation, a non-profit organization that supplies quality healthcare to people living in rural Kenya. She is also an ardent supporter of She Can, a non-profit organization that provides college education for women in Rwanda, Cambodia, and Liberia. Dr. Welsh just completed another Skin Cancer Take a Hike, an annual event sponsored by the American Academy of Dermatology that helps to fund free skin cancer screenings and more in underserved communities.

Education and Training

Dr. Kathleen Welsh is a highly-educated physician, receiving training from some of the most prestigious institutions in the country. Dr. Welsh received her medical degree from Harvard Medical School and then completed an internal medicine residency at the University of California San Francisco School of Medicine. She completed her residency in dermatology at Stanford University School of Medicine. Dr. Welsh is board-certified in both internal medicine and dermatology.

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2299 Post Street Suite 312

San Francisco, CA 94115

Call: 415-292-6350

Dr. Kathleen Welsh Videos

Trusted, Proven

I've been looking for an amazing dermatologist, and Dr. He is so him! Dr. He removed red spots from my face, and he also removed a really bad looking big growth on my back. Somehow this magician did it all in a flash and without leaving any scaring at all. I know a little bit about the industry--I managed Tenaya Med Spa for years. I sometimes have former clients ask me who I now recommend, and up until I visited Dr. He and Dr. Welsh, I didn't know what to say. But wow, I sure do now--to experience is to believe. Dr. He's no-rush kindness and skill level is the best of the best. Even better than the best! It's so comforting to know that such elite dermatology exists in San Francisco, and especially from such a nice person like Dr. He.

D.S. Yelp

I always appreciate having Dr. Welsh take care of me. She has been my dermatologist for over 30 years and my skin looks better than ever. The staff is wonderful too

J.H. Google

I've been going to Dr Welsh for over 30 years and quite often get complimented on how much younger I look than 77. Always asked who my doctor is. Dr Welsh and all of her staff are absolutely The Best! Caring, professional, and pioneers on treatments that really do make a difference in the way one feels when gazing into a mirror. I wish the the scale for the number of stars on this review would be 10. But even then I'd have to add a plus sign after that "score".

K.V. Google

Dr. Kathleen Welsh is incredibly intelligent, compassionate and is simply one of the best doctor’s on this planet. She is the top doctor in her field. I recommend her to all my friends, family and colleagues.

A.S. Google

Had a 5 star experience. Dr Welsh & Mary always make me feel comfortable. They go above and beyond, from their level of caring and expertise is unparalleled. They take the time to answer any questions I have. I am so thankful to have been a patient of Dr Welsh's for so many year.

L.J. Google


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