Dr. Malcolm Ke

Please welcome the new owner of Yorba Linda Dermatology! Born and raised in Southern California, Dr. Ke received his medical degree from the Chicago Medical School and completed his internship in general surgery at the University of California, San Francisco East Bay Program. Prior to starting his dermatology residency, he received a National Institutes of Health Research Scientist Award to study cutaneous lymphoma and photodynamic therapy at Case Western Reserve University, where he completed research fellowships in both Investigative and Molecular Dermatology as well as Cutaneous Oncology with an emphasis in melanoma and lymphoma. He then completed his dermatology residency at Case Western Reserve University. A Diplomate of the American Board of Dermatology, Dr. Ke also completed a fellowship in Mohs Micrographic Surgery, Lasers, and Cosmetic Dermatology at the University of California, Los Angeles. He is a Fellow in the American College of Mohs Surgery and performs approximately 1500 skin cancer surgical cases annually for the past ten years.

Before moving back to California, Dr. Ke served as the Director of the Skin Surgery, Laser, and Aesthetic Center of Case Western Reserve University. Currently an Assistant Professor of Dermatology at the University of California, Los Angeles, Dr. Ke enjoys volunteering at the VA teaching the principles of Mohs surgery and advanced facial reconstruction to the dermatology residents and fellows.

Dr. Ke also serves on several scientific advisory boards for new cancer and laser therapies and on the editorial board for Dermatologic Surgery, the official publication for the American College of Mohs Surgery, and the Journal of Cosmetic and Laser Therapy, the official publication of the International Society of Cutaneous and Laser Surgery.
Dr. Ke enjoys spending quality time with his family including going to the beach, playing tennis, golf, and guitar, and enjoying good food!


Dr. Dennis Nguyen

An Orange County native, proud to be serving the community as a Board-certified Dermatologist and Fellowship-trained Mohs Surgeon.

Dr. Nguyen grew up in Anaheim and completed his undergraduate studies at the University of California, Berkeley. Following college, Dr. Nguyen continued his work in the UCSF Melanoma Sentinel Lymph Node Program, in addition to research of autologous melanoma vaccines. He graduated from the University of California, San Francisco School of Medicine as a prestigious Regents Scholar in 2004. From there, Dr. Nguyen, completed his dermatology residency at University Hospitals/Case Western in Cleveland before pursuing a Mohs Surgery and Procedural Dermatology fellowship at SUNY Downstate Medical Center.

Upon fellowship graduation in 2009, he joined The Permanente Medial Group and later, the Southern California Permanente Medical Group. In this setting, he was able to practice comprehensive medical dermatology, but also hone his interests in skin cancer and cutaneous oncology. Dr. Nguyen has performed over 10,000 cases of Mohs micrographic surgery and reconstruction during this time, treating all manners of common and rare, complex skin malignancies . His fellowship-training and extensive experience makes him specifically qualified for the meticulous work of skin cancer removal and the art of facial reconstruction.

Dr. Nguyen is a fellow of the American Academy of Dermatology and the American College of Mohs Surgery, and member of the American Society of Dermatologic Surgery. He reviews articles for publication in the journal Dermatologic Surgery.

Dr. Nguyen enjoys travel, photography, and the foods and rich cultural opportunities that Southern California provides. He enjoys these offerings alongside his wife Alyssa, son Theodore, and their dog Crick.


Mimi Tran, PA-C

Ms. Tran has been a physician assistant since 2006. She completed her undergraduate work at the University of California, Irvine earning a Bachelors of Science in Biology and a minor in Business Management. She continued her graduate educate at Samuel Merritt College in Oakland, CA obtaining a Master’s degree in Physician Assistant Studies. Mimi Tran is experienced in general dermatology, and dermatologic procedures including excisions, and repairs for Mohs procedures.