Our Team


Dr. Andrea Passalacqua | Kay Dermatology in Burbank, CA

Andrea Passalacqua, DO

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Dr. Martin Kay | Kay Dermatology in Burbank, CA

Martin Kay, PHD, MD

Medical Director – Dermatologist & Surgeon

Martin H. Kay, Ph. D., MD is a Dermatologist with over 25 years of experience. Dr. Kay uses his strong science background in research to provide his patients with the most effective and safe treatments to date. His training and interests span 15 years of teaching Pediatric and Surgical Dermatology to residents at USC medical college. He was one of the first American dermatologists to offer laser treatments, liposuction, chemical peels, sclerotherapy and other cosmetic dermatology treatments. Dr. Kay has dedicated his career to helping people with their skin problems for an overall healthier appearance. Dr. Kay treats all his patients as if they were family. His patient’s health and well-being are his primary concerns.

Dr. Rachel Bak | Kay Dermatology in Burbank, CA

Rachel Bak, MD

Medical / Surgical Dermatology

Dr. Bak received her Bachelor of Arts at the University of California Los Angeles in 2002 with honors. Thereafter, she attended the Keck School of Medicine at the University of Southern California and earned her MD degree in 2007. Dr. Bak completed her internship in general surgery during her internship because of the advances in surgical dermatology. Dr. Bak then completed her residency at the University of California Los Angeles program at Northridge Hospital Medical Center in Family Medicine in 2011. Dr. Bak uses her general medical knowledge and skill to teach each of her patients comprehensively and with tremendous respect.

Dr. Bak is accomplished in medical research in both the basic sciences and clinical areas. Her research in epidermolysis bullosa was published in the Journal of Investigative Dermatology in 2005. She also presented such work as an abstract at both the Society for Investigational Dermatology meeting and Keck School of Medicine Research Forum in 2005. Dr. Bak also published a comprehensive review of Delusions of Parasitosis in Cutis, October 2008. Dr. Bak has also participated in cosmetic lip enhancement research with Dr. Joel Aronowitz of Cedars Sinai Medical Center and her research was published in 2002.

Dr. Bak feels very strongly about continued medical education in herself and others. She also teaches residents and medical students in her office. Dr. Bak is Board Certified by the American Board of Family Medicine and is an AAAM Board Certified Physician in Aesthetic Medicine.

Alia Silkov | Kay Dermatology in Burbank, CA


Physician Assistant

Alia Silkov, Certified Physician Assistant, joined Kay Aesthetic Dermatology in 2008. After an undergraduate degree, she earned her Master’s Degree in Physician Assistant Studies from the Western University of Health Sciences in Pomona, California. Alia is well regarded by her patients and has a unique understanding of the fusion between the medicine of dermatology and cosmetic treatments that our patients seek. Her specialties include pediatric dermatology, dermatology laser treatments, as well as all cosmetic dermatology techniques (Botox, Fillers, and Peels) to enhance our patient’s skin. Alia holds the highest certification for a dermatology physician assistant, the Diplomate Fellow of the Society of Dermatology Physician Assistants.

Gina Obsenares | Kay Dermatology in Burbank, CA


Physician Assistant

Gina Obsenares, Certified Physician Assistant, joined the Kay Aesthetic Dermatology team in 2005. She earned her Bachelor of Science degree in Biological Sciences at the University of California, Irvine and her Certificate in Physician Assistant Studies from Charles Drew University of Medicine and Sciences in Los Angeles, California. During her Physician Assistant studies, she was nominated to the Dean’s List each semester and graduated Magna Cum Laude.

Gina is certified by the National Commission on Certification of Physician Assistants. She is licensed by the California State Board of Physician Assistant Examiners and is an active member of the Society of Dermatology Physicians Assistants, the California Association of Physician Assistants and the American Academy of Physician Assistants. She continues to broaden her dermatology knowledge by attending continuing medical education conferences and courses.

As a Physician Assistant who has received specialized training in dermatology, Gina is licensed and qualified to perform a comprehensive dermatological exam, diagnose, treat and prescribe appropriate medical therapy for your dermatology needs. She is skilled in performing procedures including: shave biopsies, punch biopsies, excisions, cryotherapy, laser treatments, sclerotherapy and cosmetic procedures such as Botox, Juvederm™ and Restylane™.

Anna Piaseczna | Kay Dermatology in Burbank, CA
Anna Piaseczna | Kay Dermatology in Burbank, CA


Anna graduated from Azusa Pacific University. She started her nursing career in Aesthetic medicine and neuroscience. Anna has a strong sense of service and I enjoys helping people feel better, live better and look better. She truly listens to and empathizes with her patients. She specializes in a subtle, natural approach to her injections and facial balancing helping her patients look rested, refreshed and more youthful. Anna is also working on finishing her master’s degree in nursing to become Nurse Practitioner with specialty in dermatology. In her free time Anna enjoys athletic activities, travel and she loves to spend time with her dogs.

Marilyn Stein | Kay Dermatology in Burbank, CA


Marilyn Stein is a clinical and holistic aesthetician for over 20 years.

She has pursued post-graduate education earning an advance diploma from The International Dermal Institute.

She has additional certificationin Corrective peels, Dermaplaning, Microneedling, Microdermabrasion, Acne and anti-aging treatments.

Marilyn is able to provide her clients with customized results-oriented treatments along with professional advice on the latest skin care.

She has a nurturing and playful manner, she feels that building trust and educating clients are the first step to achieving better skin.

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