Arnold William Klein (February 27, 1945 – October 22, 2015) was an American dermatologist who practiced in the Los Angeles area and gained national attention for his work in cosmetic dermatology and medical dermatology. Over a multi-decade career he became a recognized figure in treating skin disease and in aesthetic procedures performed for private and celebrity patients.

Career and specialties

Klein combined clinical practice with scholarly activity. His work encompassed diagnosis and management of inflammatory and autoimmune skin disorders, as well as cosmetic interventions such as injectables and resurfacing techniques that grew increasingly common in late 20th-century dermatology. He maintained a private practice in Beverly Hills and was known for adopting and refining minimally invasive approaches used in cosmetic medicine.

High-profile patients and public attention

Klein acquired public visibility through his association with prominent clients. In 1983 he began treating singer Michael Jackson, a patient who later drew media interest; for further context see relevant coverage. His work for well-known individuals contributed to his reputation as a go-to cosmetic dermatologist in celebrity circles.

Research, publications and professional activity

Throughout his career Klein remained active in academic and clinical research, authoring more than 150 scientific papers on topics ranging from dermatologic disease to cosmetic procedures and skin therapeutics. He participated in professional societies and contributed to continuing education within dermatology, helping to disseminate techniques and safety data to other clinicians.

AIDS advocacy and community involvement

Beyond skin care, Klein was involved in public health responses to HIV/AIDS. He served on advisory bodies such as the Advisory Board of the AIDS Services Foundation Orange County and supported efforts to expand care and resources for people living with HIV. His engagement reflected a broader trend of medical professionals contributing expertise to community organizations during the epidemic.

Legacy

Arnold Klein's legacy rests on a blend of clinical practice, scholarly output and public-facing work. Colleagues remember him for his role in aesthetic dermatology and for helping to bridge clinical care with research and advocacy. He died in October 2015, and his contributions continue to be noted in discussions of cosmetic dermatology and physician involvement in public health causes.

  • Born: February 27, 1945; died: October 22, 2015.
  • Published over 150 scientific articles.
  • Served on the Advisory Board of the AIDS Services Foundation Orange County.