Ladies and Gentlemen of Dermatology
Founding Members
in alphabetical order
David Cotter, MD, PhD
Dr. Cotter graduated from UNLV with highest honors, and obtained both an M.D. and a Ph.D. in molecular cell biology and physiology at Washington University School of Medicine. He completed his residency training in dermatology at the University of California San Diego, where he also served as chief resident. He has clinical expertise in inflammatory skin diseases and skin cancer. Dr. Cotter is in private practice at Las Vegas Dermatology and 1/2 of the DermBros®.
Chris Crowley, MD, PhD
Dr. Crowley practices general dermatology, offering diagnosis and treatment for the full spectrum of adult dermatologic conditions. He also performs routine dermatologic surgeries. Dr. Crowley completed his dermatology training at the UC San Diego School of Medicine in 2017. He earned his Medical Degree from the UC Los Angeles School of Medicine in 2012, and a Ph. D. in Molecular Biology from UCLA in 2010. In his free time, he enjoys time with his family and outdoor recreational sports.
Rob Dorschner, MD
Dr. Dorschner practices dermatology and trains residents and medical students at UC San Diego School of Medicine. He conducts research on the regulation of inflammation in wounds and factors that control the switch between inflammation and repair.
Dr. Dorschner completed medical school and residency at UC San Diego School of Medicine.
In his spare time, Dr. Dorschner stays active through hiking, mountain biking and surfing. He also enjoys camping, fishing and cooking.
HL Greenberg, MD
Dr. Greenberg is “Dr. Vegas”, a Board Certified Dermatologist experienced in all facets of dermatology including medical, surgical, laser and cosmetic procedures; he is also ½ of The Derm Bros®.
Dr. Greenberg graduated college from University of Michigan, medical school at Wayne State University School of Medicine, completed internal medicine residency at Georgetown University Hospital, and dermatology residency at Scott & White of the Texas A&M University Health System.
Keith Roby, MD
Dr. Roby considers himself a native of America’s Finest City, San Diego. He completed undergrad, medical school, and residency training at UC San Diego, where he served as chief resident in dermatology and was elected as House Officer of the Year for the entire UC San Diego health system. Following graduation, Dr. Roby joined the faculty at UC San Diego Dermatology, where he cared for patients at both UC San Diego and the VA San Diego Hospital. He now practices at Kaiser Permanente in San Diego.
Aria Vazirnia, MD
Dr. Vazirnia enjoys performing minimal down-time procedures to turn back the clock of aging and provide natural-appearing results.
He graduated summa cum laude from UCLA and completed medical school, a master’s degree, and dermatology residency at UC San Diego School of Medicine. Following residency, he completed a laser and cosmetic dermatology fellowship at Harvard.
In his spare time, he enjoys playing piano and guitar, trying new foods, and spending quality time with family and friends.