Sheila Mayo

posted on October 22, 2019

Sheila Mayo, PA-C, is a board certified physician assistant who specializes in dermatology. Sheila earned her bachelor’s degree in molecular cell biology from the University of California, Berkeley, and completed her Master of Medical Science in the Physician Assistant program at Emory University in Atlanta, Georgia. She brings over 15…

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David Mapes

posted on July 22, 2022

David Mapes, PA-C, is a certified physician assistant specializing in dermatology. David began his medical career as a paramedic after completing the Emergency Medical Services Paramedic program through Fresno City College. He then earned associate degrees in fire science and speech communication. David then continued his education at San Joaquin…

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Luis A. Dehesa

posted on August 4, 2016

Luis A. Dehesa, MD, is board certified in dermatology and Mohs micrographic surgery. He was a board-certified dermatologist in Spain when he met his wife, a Fresno native, and decided to move to the United States. Dr. Dehesa then repeated his dermatology training in the United States. He completed his…

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Gregory L. Simpson

posted on June 2, 2014

Gregory L. Simpson, MD, is board certified in Dermatology. He earned his medical degree from the University of Tennessee, completed a preliminary internal medicine year at Georgetown University, and finished his dermatology residency at the Medical College of Georgia. Dr. Simpson has been the Medical Director of Dermatology at UCSF…

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