Dr. Christiaan P. Hallman is a board-certified dermatologist with more than 25 years of clinical, academic, and private practice experience in medical, surgical, and cosmetic dermatology. He currently practices with Regal Medical Group/Lakeside Dermatology, where he provides comprehensive dermatologic care with an emphasis on evidence-based treatment and patient-centered outcomes. From 2003 to 2023, Dr. Hallman owned and operated Drange Hallman Medical Corporation, a solo private practice serving the Pasadena community. During this period, he earned recognition as one of Pasadena...

Dr. Erica Stevens is a board-certified dermatologist with extensive experience in medical, academic, and telemedicine-based dermatology. She is currently engaged in nationwide practice through DermatologistOnCall, SkyMD, Honeydew, and Post Acute Specialists, providing accessible dermatologic care across multiple states. From 2021 to 2025, she served as a dermatologist with Baylor Scott & White in Buda, Texas, where she was recognized as a Top Doctor in 2023 and 2024. Earlier, she practiced with Westlake Dermatology in Austin from 2019 to 2020. Dr....

Dr. Lisa Stirling is a board certified dermatologist with expertise in medical, surgical, and cosmetic dermatology. She has practiced clinical dermatology for the past 11 years and telemedicine for the last 5 years. She enjoys caring for patients with complex skin conditions and uses multiple treatment modalities, including topical regimens, light therapy, laser, systemic medications, and biologics. She is specialized in treating patients with skin cancer, including melanoma. Dr. Stirling believes in compassionate care and a patient centered treatment approach,...

Dr. Michael Trauner is a board-certified dermatologist and fellowship-trained Mohs micrographic surgeon with over 20 years of experience in dermatology and dermatologic procedures. He earned his medical degree from Duke University School of Medicine in 1994 and completed his dermatology residency at the University of California, Davis Medical Center, where he served as Chief Resident. Dr. Trauner further honed his expertise through a fellowship in dermatologic surgery at Tufts New England Medical Center in Boston. Dr. Trauner’s career spans a...

Dr. Syed Omar Ali is a board-certified dermatologist with more than two decades of clinical, military, and academic experience in medical, surgical, and cosmetic dermatology. He is currently a dermatologist with the Skin and Beauty Center in West Hills, California, and previously served as CEO and practicing dermatologist at Acclaim Dermatology in Sugar Land, Texas (2016–2025), where he provided comprehensive dermatologic care and led a high-volume practice. Dr. Ali earned his Bachelor of Science in Life Sciences from the United...

Dr. Vida Chitsazzadeh is a distinguished board-certified dermatologist and physician–scientist whose career seamlessly bridges clinical practice, academic research, and expert analysis. With a foundation in both medicine and molecular science, Dr. Chitsazzadeh offers a unique perspective that is particularly well-suited to complex medical-legal cases requiring dermatologic expertise. She currently practices dermatology at Kaiser Permanente Southern California Medical Group, following her role as a dermatologist at the Kelsey-Seybold Clinic in Houston, Texas (2022–2024). Her clinical interests span general medical dermatology, skin...