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Torrance Today
By the People, for the People
Coast Dermatology celebrates 35 years of service in South Bay
The practice offers comprehensive dermatology services and is one of the few in Southern California with a patch test center.
Mar. 16, 2026 at 9:45pm
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Coast Dermatology Medical Associates, founded by Dr. Mark Horowitz, DO, has been serving patients in the South Bay for over 35 years. The practice offers a wide range of medical, surgical, cosmetic, and pediatric dermatology services, including skin cancer detection, Mohs micrographic surgery, cosmetic laser treatments, and patch testing for allergies.
Why it matters
Coast Dermatology's longevity and comprehensive services make it a trusted provider for the South Bay community. The practice's patch test center, which helps identify environmental triggers for chronic rashes, sets it apart from many other dermatology clinics in the region.
The details
Coast Dermatology Medical Associates was founded in 1991 by Dr. Mark Horowitz, DO. The practice has grown to include a team of board-certified physicians and specialists who serve patients across all stages of life. Coast Dermatology offers a wide range of services, from medical and surgical dermatology to cosmetic treatments and pediatric care. One of the practice's standout offerings is its patch test center, which is one of the few in Southern California and helps identify environmental chemicals that may be causing chronic rashes.
- Coast Dermatology Medical Associates was founded in 1991.
- The practice has been serving patients in the South Bay for over 35 years.
The players
Coast Dermatology Medical Associates
A dermatology practice that has been serving patients in the South Bay for over 35 years, offering a comprehensive range of medical, surgical, cosmetic, and pediatric dermatology services.
Dr. Mark Horowitz, DO
The founder of Coast Dermatology Medical Associates, which he established in 1991.
The takeaway
Coast Dermatology's longevity, comprehensive services, and specialized patch test center make it a valuable resource for the South Bay community, providing high-quality dermatological care for patients of all ages.


