Ann Marie Hembrough is a physician assistant who earned her degree at SUNY Stony Brook in 1996. Annie completed her undergraduate degree at Manhattan College in 1993 with a bachelor of science in biology. Prior to attending PA school, Annie spent a year doing cancer research at Memorial Sloan Kettering Cancer Center in the Department of Molecular Therapeutics. Annie also proud to be an alum of the class of 1989 from Immaculate Heart Academy in Washington Township.
Annie has worked in various fields of medicine, but started to develop her cosmetic skills while working for Dr. Daniel C. Mills, a plastic surgeon in Laguna Beach, California. She then furthered her knowledge in medical and cosmetic dermatology while she worked for Dr. Nancy Silverberg in Newport Beach, California. After many years in California, she moved with her family to Ramsey, NJ.
In 2017, she began working for Dr Jocelyn Lieb at the Skin and Laser Center of NJ. She has experience in treating various medical conditions, including precancers, acne, rosacea, psoriasis, eczema, skin cancers, and many others.
Annie has also gained a lot of experience in cosmetics, having performed many in-office procedures such as dermal fillers (e.g., Juvederm®, Restylane®), neurotoxins (e.g., BOTOX®, Dysport®, Xeomin®), laser procedures, microneedling, hair restoration procedures, and CoolSculpting®. To keep up with the demands of body contouring, Annie has attended CoolSculpting University twice.
Annie is a proud resident of Ramsey, NJ, where she lives with her two daughters, Emma and Sofie.
Mimi Oliff was born and raised in Pittsburgh, Pennsylvania. After graduating with honors from her local high school, she attended Indiana University, graduating with a BS in psychological and brain science (pre-physician assistant studies) in 2008. After college, Mimi pursued her career in medicine, and attended Pace University / Lenox Hill Hospital Physician Assistant Program. After three years of intense coursework, in 2010 she graduated and became a certified physician assistant.
After graduating, she spent seven years in the field of breast medicine and surgery. During this time, she also participated in research looking into earlier breast cancer diagnosis and a faster road to treatment. In 2017, she began pursuing her true passion in dermatology. She worked with several dermatologists in the New Jersey area from 2017 to 2023, when she gained a lot of dermatological knowledge and experience. Finally, in January 2023, she joined our family at the Skin & Laser Center of NJ!
She has experience in treating a wide variety of dermatologic conditions, including sun damage, pre-cancers, irregular moles, skin cancers, warts, acne, eczema, psoriasis, contact dermatitis, rashes, autoimmune skin disease, and rosacea, among many other conditions. Mimi performs many in-office procedures. She has been trained in surgical dermatology and regularly performs surgical excisions to remove skin cancers, atypical moles, and cysts from the skin. She sees patients 5 years of age and above.
She is a member in good standing of the American Academy of Physician Assistants and the New Jersey State Society of Physician Assistants. She maintains and updates her knowledge by attending several conferences per year to keep up with the latest innovations in the medical field.
Mimi exudes a calm and patient character and is dedicated to making her patients feel comfortable from the moment they walk into the office. Her hobbies include travel, spending time with family (identical twin girls), bargain shopping, and watching reality TV!
Zinoviya Petryshyn, PA-C, is a certified physician assistant with a master’s degree from University of Medicine and Dentistry of New Jersey, having graduated in 2012. She is a member of the American Academy of Physician Assistants and the New Jersey Society of Physician Assistants. She continuously attends advanced seminars, conferences, and trainings to enhance her abilities, to stay current on the latest clinical data and skills.
Zena shares a love for general dermatology while maintaining her passion for aesthetics. Her focus is on full face restoration with the goal of enhancing and delivering the most natural, beautiful result of a patient’s own features. With more than 12 years of experience in general dermatology and aesthetics, she uses her experience and the latest clinical methods to achieve best results for her patients. She believes that combining injectables, lasers, microneedling, PRP injections, and chemical peels along with an optimal skin care routine can help patients age gracefully.
Her warm personality makes patients of all ages feel comfortable in the office. Whether she is diagnosing rashes, treating acne, performing skin cancer screenings, surgically removing skin cancers, growths, cysts, or lipomas, she takes the time to share her knowledge and educate patients on their diagnosis. She believes education is key in achieving optimal results and successful outcomes in any situation.
In her free time, she loves spending time with her toddler, traveling, and working out.
Skin & Laser Center of NJ in Ramsey provides a wide range of medical, surgical, and cosmetic services for patients in and around New Jersey. Patients can get diagnosis and treatment for acne, skin cancer (with Mohs surgery), chronic conditions (like psoriasis, rosacea, and eczema), moles, melasma, vitiligo, athlete’s foot, toenail fungus, scabies, contact dermatitis, and more. Cosmetic options include wrinkle-relaxing BOTOX® and Dysport®, dermal fillers like Juvederm® and Restylane®, Kybella® for reducing a double chin, chemical peels, Hydrafacial MD, microneedling, laser hair removal, laser acne treatments, laser scar treatments, laser tattoo removal, CoolSculpting®, laser vein treatments, sclerotherapy, and more.
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