Meet Our Team

All professionals at Glenn H. Brown, MD maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

Linda Silva, MPAS, PA-C

Linda Silva is originally from California.  Her medical experience began as a medical assistant in the field of Dermatology. Her desire to continue her medical knowledge led her to Texas where she graduated with honors from The University of Texas Medical Branch at Galveston with her Bachelor of Science in Physician Assistant Studies.  She then went on to receive her Master of Physician Assistant Studies from the University of Nebraska Medical Center with a specialization in Oncology and Hematology. Linda’s practice has been in Internal Medicine, Oncology, and Hematology.  Her love of skin care brought her to Dermatology where she has been practicing dermatological and cosmetic services since 2010.  Her continued interest in aesthetics prompted her to go back to school to become a licensed esthetician, certified laser technician, and a laser safety officer in which she completed in 2019.

Linda is a Board Certified Physician Assistant by the National Commission on Certification of Physician Assistants and holds Diplomate status in the Society of Dermatology Physician Assistants.  She joined Glenn H. Brown, M.D., Dermatology in November of 2014.

Away form the office Linda enjoys outdoor activities, traveling, and spending time with family and friends. 


Karli Vierra, MPAS, PA-C

Karli was raised in southern Oregon. She graduated magna cum laude from Southern Oregon University with a bachelor’s degree in chemistry. In 2008, Karli moved to Arizona to pursue her master’s degree in physician assisting at A.T. Still University. Karli has been practicing since 2010, bringing experience from primary care, general surgery, vascular surgery and dermatology. 

Karli is certified by the National Commission on Certification of Physician Assistants. She is a member of the American Academy of Physician Assistants and the Society of Dermatology Physician Assistants. She has also taken the time to serve on medical missions to both Mexico and Peru. 

Outside the office, Karli enjoys spending time with her son, traveling, dancing, reading and scuba diving.