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Miriam Bettencourt, MD, FAAD

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Meet Miriam Bettencourt, MD, FAAD

Board Certified Dermatologist Dermatologic and Mohs Surgeon

Patient Testimonial: "Dr. Bettencourt is an exceptional doctor who is very knowledgeable, has an eye for detail and a comforting bedside manner. She has attended to all my dermatology needs & I highly recommend her to everyone."
- Lisa P.
Office Location: Henderson


Miriam S. Bettencourt, MD, is a board-certified Fellow of the American Academy of Dermatology, a clinical professor of dermatology at the University of Nevada, and an adjunct professor at Touro University. She practices medical and cosmetic dermatology and Mohs surgery at Thomas Dermatology’s Henderson, Nevada office location. 

She started her medical career in Brazil and completed a residency in internal medicine and dermatology at the University of São Paulo, followed by a residency in family medicine and dermatology at Duke University, where she was selected as Chief Resident. Subsequently, she joined the University of South Florida as an assistant clinical professor and Associate Residency Program Director, Head of the Clinical Trials Division, and Chief of Dermatology and Dermatologic Surgery.

She has been practicing in Las Vegas since 2002. She is the founder and director of the Women Physicians Medical Society in Las Vegas and has participated in several committees of the American Academy of Dermatology and Women’s Dermatologic Society.

Dr. Bettencourt has been the investigator for multiple clinical trials, the moderator of several pharmaceutical advisory boards, and she is a nationally and internationally recognized speaker (over 1200 lectures) in medical dermatology, speaking about topics such as psoriasis, atopic dermatitis, actinic keratosis, tropical diseases, and others. She is faculty of the Las Vegas Derm Seminar as the Chair for the Best Cases of Las Vegas session. In November 2021, Dr. Bettencourt was elected by her peers to the Board of Directors for the Nevada Society of Dermatology and Dermatologic Surgery. She has also served as President of the Nevada Society of Dermatology and Dermatologic Surgery. 

She has represented the US in dermatology meetings in Italy, Australia, South Korea, Canada, Germany, Brazil, Mexico, France, etc. She was selected by the American Academy of Dermatology to participate in leadership forums and represent the state of Nevada at past legislative conferences.

Dr. Bettencourt contributes to the dermatology education of physician assistants and medical students in the valley, and she has been the recipient of the Top Doc Award in Las Vegas yearly. She is married to Mike Davidson, former Clark County Assistant District Attorney and retired Nevada Supreme Court Settlement Judge.