Our Providers

Emily L. Prosise, MD

Dr. Prosise is an accomplished surgical and medical dermatologist. As a fellow of the American Society for Mohs Surgery, she has patients referred from all over central Texas for Mohs skin cancer surgery. She trained at Duke University for undergraduate and medical school, University of Texas Health Science Center San Antonio for internship, and Stanford University for dermatology residency.

Halliday C. McDonald, MD

Dr. McDonald is a board-certified dermatologist with expertise in medical, surgical, & cosmetic dermatology. She has experience in the diagnosis and treatment of a variety of skin conditions, including skin cancer, acne, psoriasis, eczema, nail disorders, & many others. She also is an expert in injectable neurotoxins, fillers, chemical peels, & sclerotherapy.

Zoltan Trizna, MD, PhD

Dr. Trizna has been in private practice in Austin, TX since 2002 and specializes in dermatology and dermatologic surgery. He is the author of over 60 papers and book chapters.

Olivia Chen, MD

Dr. Olivia Chen is a board-certified dermatologist and fellowship-trained Mohs Surgeon in the American College of Mohs Surgery. She treats the full scope of dermatologic conditions, with specialized training and expertise in high-risk skin cancer, Mohs surgery, surgical reconstruction, and cosmetic concerns.

Alison Messer, MD

Dr. Messer is a board-certified dermatologist and dermatopathologist, who received her medical training at the University of Texas Medical School at Houston and MD Anderson Cancer Center. She sees patients of all ages and has particular interest in diagnosing and treating skin cancers and rashes, including those related to cancer-related therapies such as chemotherapy,
immunotherapy, and radiation..

Mellissa Binney, PA-C

Mellissa Binney is a board-certified Physician Assistant and has been with Central Texas Dermatology since 2002. She has expertise in general medical dermatology, with diagnosis and treatment of skin cancers, skin conditions and rashes for both adults and children. She is licensed to practice medicine by the Texas Medical Licensing Board and is certified by the National Commission on Certification of Physician Assistants.

Lia Stratton, FNP-C

Lia Stratton truly enjoys the practice of dermatology and is passionate about providing excellent patient care. She has received specialized training in medical, surgical, and cosmetic dermatology. She is certified by the American Association of Nurse Practitioners and is licensed by the Texas State Board of Nursing.

Congratulations to Dr. Trizna on his upcoming retirement July 19!