Dermatology Providers

Dr. Hsu was born and raised in Taiwan and immigrated to the US when he was 14. After graduating from San Marino High School, he received his BA degree in Biology from UC Berkeley. He received his MD and MBA degrees from Creighton University in Omaha, NE.

He completed his residency in Radiation Oncology at Loyola University Medical Center in Chicago. Dr. Hsu also received MPH (Master of Public Health) degree from the University of Illinois at Chicago. After completing his residency, he practiced at Eisenhower Medical Center in Rancho Mirage, CA. He then moved to Omaha, NE to help build and develop a brand new cancer center there and practiced as the head of radiation oncology.

Ms. Kwong is a board-certified Physician Assistant who joined OC Skin Institute in 2017. She received her Bachelors at University of Washington and Masters of Physician Assistant Studies at James Madison University. After her studies, she returned to Orange County to work at breast cancer and plastic reconstruction clinic for a few years. That job cemented her passion to work with cancer patients and honed her surgery and suturing skills, which are important to her job now at OC Skin Institute. She strives to provide excellent patient care and to continue to learn more. In her free time, Ms. Kwong enjoys spending time at home with her husband and two daughters. She also enjoys watching movies and looking up food recipes to try.

Mia Gatti, DMSc, PA-C, knew she wanted to work in the medical field from a young age. Dr. Gatti decided to follow medicine as a career path, so she could positively impact patients’ lives and the healthcare industry. Not only has this been rewarding for her, but she knows that her effort in modern medicine is a beacon of light for each of her patients. Mia feels it is a privilege to care for her patients. She is a board-certified physician assistant and has her doctorate in medical sciences with an emphasis in clinical research, skilled in dermatology and dermatologic surgery. Mia Gatti’s specialties include general dermatology, the diagnosis and early detection of skin cancer, dermatologic surgery, and cosmetic dermatology.

"I believe in not only practicing medicine but, leading it"

Mia Gatti, DMSc, PA-C, is a board certified dermatology and dermasurgeon physician assistant, who graduated with her doctorate in medical sciences with an emphasis in clinical research. Mia’s specialties include general excisions, clinical research, biopsies, diagnosis and treatment of dermatologic conditions, and skin cancer detection. She has solely performed over 10,000+ surgeries to this date.

With a deep interest in contributing to improvements in dermatology treatments and surgical techniques, Mia Gatti, DMSc, PA-C, is the Founder and Owner of University Dermatology Trials, Inc. in 2022, and a previous Co-Founder of Dermatology Clinical Trials (DCT). With over a decade of dermatologic clinical research, she has participated in over 100 Phase I, II, III, and IV dermatologic studies. Previously, she participated in dermatologic clinical research roles including Director and Sub-Investigator at University Clinical Trials in San Diego, CA.

Mia Gatti graduated from the Physician Assistant Program at Nova Southeastern University with a master's degree in medical sciences. There she specialized in dermatology and dermatologic surgery, and trained with the top dermatologists and plastic surgeons. She excelled as a leader of her medical program as Nova Southeastern University’s Student Representative for the Florida Academy of Physician Assistants. Mia received her bachelor's degree in biology (Pre-Med) from the University of Tampa in Tampa, Florida where she distinguished herself among her peers as Vice President of the Biology Honors Fraternity, Tri Beta.

Mr. De La Cruz graduated from California State University of Long Beach with a Bachelor of Science-Health Science Option in Radiation Therapy. As a student, he completed his radiation therapy internships at University of California Irvine Medical Center, UCLA Reagan Medical Center, Long Beach Memorial, and Presbyterian Intercommunity Hospital.

He was one of the first Radiation Therapists in SoCal, to work with Electronic Brachytherapy specializing in skin radiation therapy, alongside Dr. Hsu in 2013. He helped start our services in 2014, before leaving to work and hone his skills as a radiation therapist under other institutions, but he is now back as our Chief Radiation Therapist.