Lucy Li, MD, FAAD

Graduated magna cum laude from Harvard University and received her M.D. degree from Tufts University School of Medicine. She completed her internal medicine residency at Washington University and her dermatology residency at Boston University, serving as chief resident her final year. She is a Diplomate of the American Board of Dermatology, a Fellow of the American Academy of Dermatology and a member of the American Society of Dermatological Surgery. She has multiple publications in major dermatology academic journals. She participates in many community services, including free skin cancer screening each year.

Dr. Li Specializes in the following:

Acne, allergic dermatitis, cyst, eczema, hair loss, hemangioma, hives, keloid, melasma, abnormal moles, nail disease, rosacea. skin cancer, ulcer, vitiligo, warts, Chemical peel, Botox, Restylane, Sclerotherapy, Photo facial, Laser Surgery, Laser hair Removal, Leg vein, Facial redness, Brown Spots, Laser Resurfacing . Scar Revision, Torn earlobe repair, Blephroplasty, Face lift, Body contour.


Nancy Chung, MD,  FAAD

Dr. Nancy Chung earned her Bachelor of Science in Biology at Yale University in New Haven, graduating Cum Laude. She earned her Medical Degree at the University of Pennsylvania School of Medicine, where she received research awards from the American Dermatology Association and Alternatives in Research and Development Foundation. Dr. Chung completed her Internal Medicine Internship at Yale-New Haven Hospital. She went on to complete her Dermatology Residency at Virginia Commonwealth University in Richmond. She did her Research Fellowship at the National Cancer Institute in Bethesda.

Dr. Chung is a Diplomate of the American Board of Dermatology. She is a Fellow of the American Academy of Dermatology. Dr. Chung is experienced in the prevention, detection and treatment of skin cancer, as well as other disorders of the skin, hair and nails.

Physician Assistants


Brad Armstrong, MPAS, PA-C

Brad Armstrong, MPAS, PA-C graduated with honors from Texas A&M University with a Bachelor of Science in 2000. He then attended Midwestern University in Downers Grove, Illinois and graduated with honors with a Masters of Medical Science in Physician Assistant Studies in 2002. He received extensive experience in emergency medicine prior to entering the field of dermatology in 2009. He is a fellow member of the American Academy of Physician Assistants, Texas Academy of Physician Assistants and the Society of Dermatology Physician Assistants. He placed in the top 6% of the nation on the Physician Assistant National Certifying Exam (PANRE). Brad enjoys all facets of dermatology and patients of all ages. He is a native Texan growing up in the Houston area; he now resides in Frisco with his wife and two daughters.


Mary Gurney, MPAS, PA-C

Mary Gurney grew up locally in Irving, TX. She attended the University of Texas in Austin, where she completed a Bachelor of Arts degree in psychology with a minor in biology. She then went on to complete her Masters in Physician Assistant Studies at UTSouthwestern in Dallas, TX. She is certified by the National Commission of Certification for Physician Assistants.

Mary spent several years practicing in emergency medicine before transitioning to dermatology. She enjoys treating pediatric and adult patients, as well as performing medical procedures such as skin biopsies, cryotherapy, and intra-lesional injections. She is a member of the Texas Academy of Physician Assistants and the Society of Dermatology Physician Assistants.


Katie Vo, PA-C

Katie Vo is a board certified Physician Assistant and is licensed to practice in Texas. She received her Bachelor of Science in Cardiopulmonary Science from Louisiana State University. She then attended Louisiana State University Health Sciences Center Physician Assistant program in Shreveport, LA and completed her training in 2009.

Ms. Vo enjoys working with all ages of patients in the treatment of skin, hair and nails dermatologic conditions. She is a member of American Academy of Physician Assistant (AAPA), Texas Academy of Physician Assistant (TAPA), and Society of Dermatology Physician Assistant (SDPA)