Additional Providers

Our physicians, nurses and the entire staff at Southern Tier Dermatology & Aesthetics believe that looking your best is part of a healthy, balanced approach to living your best life. Doing everything we can to enhance and maintain our natural beauty is just one way we take care of ourselves.

Jennifer Fabrizi RPA-C

Jennifer Fabrizi, RPA-C attended King's College and graduated in 1999 earning her bachelor's degree in physician assistant science. She continued her studies with a corresponding master's degree in physician assistant science, graduating from the University of Nebraska in 2001. Jennifer Fabrizi brings over 12 years of physician assistant experience. Your beauty is her passion. She will help you look 5 to 10 years younger. Jenn is experienced in Botox and dermal filler.

Michelle Tagliaferri, RPA-C

Michelle Tagliaferri, RPA-C, a Rome, N.Y. native who has served the dermatology needs of patients in the Utica area for more than 10 years, works out of the Southern Tier Dermatology practice in Utica, NY. She is a 1998 graduate from Hamilton College in Clinton, N.Y., where she was awarded a Bachelor of Arts degree in biology. After completing her studies at Hamilton, she entered LeMoyne College in Syracuse, N.Y., where in 2001 she graduated from the school's physician assistant program. For the past 11 years, she has been practicing under a board certified dermatologist in NY. She is a member of the Society of Dermatology Physician Assistants and AAPA and lives in the Utica, NY area.

Katie Weber

Katie Weber, LPN, MA who grew up in the Binghamton, N.Y. area, utilizes years worth of valuable experience in nursing, plastic surgery and aesthetics to oversee all aesthetics services and treatments for Southern Tier Dermatology. Weber first became certified in aesthetic skin treatment in 1987, graduating from the Christine Valmy School of Aesthetic Skincare and Treatment in New York City. She is also a state-licensed LPN. She has worked as an aesthetician since 1986 in Binghamton and Elmira; since 1999, she worked in the office of Mark A. Walker, F.A.C.S, as a medical aesthetician. She held a similar position for Southern Tier Plastic Surgery Associates in Elmira. She is skilled in administering laser treatments for skin resurfacing, hair reduction and wrinkle reduction and collagen remodeling. She is also expert at microdermabrasion and epidermal peels, and has assisted physicians with aesthetic injectables for many years. Katie Weber is the treatment provider for our state of the art, cutting edge, FDA cleared skin tightening ULTHERAPY. She was the first person to bring to you FDA cleared CoolSculpting body contouring. We are now offering miraDry: a permanent Non-invasive solution for unwanted underam sweat. And Katie is very pleased to be able to treat our psoriasis patients with the XTRAC laser.

Nurse Practitioner Michelle Winsor, FNP-C,

Michelle Winsor, FNP-C  Family Nurse Practitioner has been with Southern Tier Dermatology & Aesthetics team since June 2012 as a nurse practitioner. She earned her BS in nursing from Syracuse University in 1999 and her master's degree as a Family Nurse Practitioner from Binghamton University. Michelle brings 19 years of experience working as a registered nurse and clinical nurse coordinator. This experience makes her uniquely suited to the practice at Southern Tier Dermatology, where the focus is on individualized care and the health of the entire person across the lifespan. Michelle earned her certification as a Nurse Practitioner in Dermatology through the DNA in 2014.

Yvonne Chesna, FNP-C

Yvonne Chesna, FNP-C has been providing dermatology care since 1998, in which she worked with Dr. Sienkiewicz for 9 plus years and then became a part of Southern Tier Dermatology. Graduate from Binghamton University Decker School of Nursing with a MS and BS degree. Yvonne has served the community as a nurse working in Labor and Delivery, The Broome County Health Department, and various home care both in nursing and primary care as a FNP. She taught full-time at the Decker School of Nursing 2008-2011 preceptor to medical students and family nurse practitioner students for many years. For a short period 2012-2014 she moved to San Antonio, Texas working extensively with Wound Care, Adjunctive Hyperbaric Therapy, and received her National Certificate as a Family Nurse Practitioner. Her love of dermatology returned her to the area where she is providing dermatology care.


Beth Stewart, FNP-C received her masters degree as a Family Nurse Practitioner from Binghamton University in 2014 and her B.S. in Nursing from Syracuse University in 1999. She has a background as a provider for a busy family centered medical practice walk in clinic as well as 20 years experience as a Registered Nurse. Beth has a love of dermatology and is dedicated to providing personalized care to the members of our community.


Abby Niziol, FNP-BC received her Family Nurse Practitioner degree from Boston College and her Bachelor of Science in nursing from St. John Fisher College. She has worked in various healthcare settings in Vermont, Colorado, and Alaska, and is excited to be delivering care “back home” here in the Southern Tier. She is able to see patients of all ages in medical dermatology and has extensive experience in cosmetic dermatology. She is a member of the International Honor Society of Nursing, the American Association of Nurse Practitioners, and the Dermatology Nurses Association. She is a Certified Botox and dermal filler injector, and truly loves all aspects of skin care.