Meet Our Staff

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Dermatology Providers

M. Kwong

M. Kwong, PA-C

Board Certified Physician Assistant

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 a 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.


K. Chung, NP-C

K. Chung, NP-C

Board Certified Nurse Practitioner

Ms. Chung is certified by the American Academy of Nurse Practitioners. She was trained at University of California, Irvine. Prior to nursing, she was a yoga instructor in the San Francisco Bay Area. Her passion for a healthy lifestyle and helping others guided her career in nursing. Ms. Chung worked as a Nurse Practitioner in Family Medicine and as a Certified Registered Nurse in the operating room. Her ambition was to eventually specialize in dermatology, which led her to join OC Skin Institute. She is committed to providing quality and compassionate care to her patients, while integrating the entire well-being into treating dermatological conditions.



D. Pollack, PA-C

Board Certified Physician Assistant

Ms. Pollack is a Board Certified Dermatology Physician Assistant. She was trained at Duke University and Carnegie Mellon where she received numerous honors and accolades for outstanding academic achievements. Ms. Pollack spent several years in private practice in San Diego after which she returned to her family in Orange County to join OC Skin Institute. Providing excellent dermatologic care and the latest, state-of-the-art treatment for her patients is paramount.





Traveling, hiking, surfing, and playing basketball

D. Hsu, MD

D. Hsu, MD

Board Certified Radiation Oncologist

Dr. Hsu was born and raised in Taiwan and immigrated to 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 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.


I. De La Cruz

I. De La Cruz

Chief Radiation Therapist

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.

I. De La Cruz

C. Marantz, MD

Board Certified Dermatopathologist

Dr. Marantz was destined to become a pathologist and more specifically, a Dermatopathologist. He is triple board certified including Dermatopathology as well as Anatomic and Clinical Pathology and is well versed in biological sciences. He obtained his bachelors degree from Rutgers University in New Jersey. After four years of medical school at the State University of New York at Buffalo, Dr. Marantz completed a multi-specialty rotating internship at Mercy Hospital, San Diego after which he trained in a comprehensive dermatopathology setting at Naval Hospital, San Diego. In addition, he has studied with Bernard Ackerman, M. D. in post graduate dermatopathology. Dr. Marantz served as chief of staff of two General Hospitals before joining OC Skin Institute.

L. Tabak

Board Certified Cidesco Esthetician & OC Skin Institute's Beauty and Anti-Aging Expert

Ms. Tabak was appointed to the Esthetics Educational Committee for the State of Florida and lectured on behalf of the State Board of Estheticians as a Board Certified member of the Esthetics committee. Her unique skill in make-up application has been seen at beauty pageants, modeling runways and on television. She was a judge for five statewide pageant competitions in Florida. Ms. Tabak believes in continuing education and constantly attends conferences and seminars to stay abreast of the latest developments in her field.

As OC Skin Institute’s product expert, Ms. Tabak recommends Eighth Day’s pharmaceutical-grade products with high active ingredients that can make profound visual changes in the way your skin looks and feels.

Lana believes in continuing education and constantly attends congresses and seminars to stay abreast of the latest developments in her field.

Whether you have dry, oily or acne-prone skin – OC Skin Institute’s aesthetic treatments with Ms. Tabak can give you outstanding results. These treatments are therapeutic, deep cleansing and relaxing as well as help to reduce the appearance of fine lines giving the skin a smoother, softer, and healthier appearance.