Physician Assistants

Physician Assistants

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Olga Biesiadecki, PA-C

Olga Biesiadecki is a board-certified physician assistant through the National Commission on Certification of Physician Assistants and is licensed to practice by the New York Board of Medicine.

Olga received her Bachelor of Science (BS) in Health Services Administration from the New York City College of Technology before continuing on to complete an MA in Physician Assistant Studies (MSPAS) at New York Institute of Technology in Old Westbury. Throughout her career she has gained clinical experience in a variety of fields including general surgery, bariatric surgery, colorectal surgery, surgical oncology, and gynecologic oncology.

In March of 2022, Olga joined New York Plastic Surgical Group as a surgical PA to board-certified plastic surgeon and New York Plastic Surgical Group President Dr. Tommaso Addona. In this role she assists Dr. Addona in treating both reconstruction and cosmetic surgery patients. Prior, to becoming a part of New York Plastic Surgical Group, Olga worked as a general surgery PA at NYU Winthrop.

She is an active member of both the New York State Society of Physician Assistants and the American Academy of Physician Assistants.

Olga Biesiadecki, PA-C

Tiffany Cheung, PA-C

Tiffany Cheung began her medical studies with a BS in Health Science from Long Island University. After graduating summa cum laude, she then went on to receive her Master of Science degree in Physician Assistant Studies from Pace University Lenox Hill Hospital.

Before joining the our team in 2018, Tiffany gained experience in a range of pharmacy, hospital, and medical center settings including Tu Quynh Pharmacy and Chatham Medical P.C. Her clinical training spans a variety of fields including plastic surgery, emergency medicine, pediatrics, internal medicine, women’s health, psychiatry, gastroenterology, and family practice.

In addition to being an active member of the American Academy of Physician Assistants, New York State Society of Physician Assistants, and the Society of Dermatology Physician Assistants, Tiffany has certifications from the National Commission on Certification of Physician Assistants, Basic Life Support for Healthcare Providers (BLS), Advanced Cardiovascular Life Support (ACLS), and Phlebotomy.

Tiffany is proficient in three dialects of Chinese (Cantonese, Mandarin, and conversational Fuzhounese), and works with plastic surgeon, Dr. Michael Dobryansky.

Tiffany Cheung, PA-C

Adriana Coico, PA-C

Adriana completed her studies at New York Institute of Technology (NYIT), where she received a BS in Life Sciences and an MS in Physician Assistant Studies.

Prior to joining New York Plastic Surgical Group (NYPS Group), she completed an emergency medicine fellowship and worked in both emergency medicine and urgent care settings.

Since 2019, Adriana has been a surgical PA to board-certified plastic surgeon and NYPS Group partner Dr. Rachel A. Ruotolo. As part of Dr. Ruotolo’s team, Adriana is responsible for helping to ensure quality care for all pediatric, reconstruction, and cosmetic patients.

In addition to her position at NYPS Group, Adriana is an active member of the American Academy of Physician Assistants and the New York State Society of Physician Assistants.

Adriana Coico, PA-C

Katie Guarino, PA-C

Katie Guarino, PA-C is a board-certified Physician Assistant and has been a part of New York Plastic Surgical Group, a Division of Long Island Plastic Surgical Group since 2011. She currently works alongside board-certified plastic surgeon Dr. Tommaso Addona.

Prior to joining our team, Katie began her career in plastic surgery at Memorial Sloan Kettering Cancer Center (MSKCC) in 2009. During that time she developed a passion for the breast cancer community that continues to impact her work today. At NYPS Group, Katie provides compassionate clinical support to those embarking on a reconstructive journey. From initial consult to recovery, she works alongside both NYPS Group and oncology staff to help patients create individualized surgery plans that best suit their needs. She is also proud to have co-authored multiple articles on Oncoplastic Breast Conserving Surgery.

In addition to her work as a cancer and reconstructive PA, Katie is also experienced in orthopedics, a field she trained in while working at Long Island Jewish Medical Center. She is currently a member of the Association of Plastic Surgery Physician Assistants, the New York State Society of Physician Assistants, and the American Academy of Physician Assistants.

Prior to completing her Physician Assistant Studies at St. John’s University in 2009, Katie earned a Bachelor of Science degree in Biology and Psychology from Loyola University in Maryland. At Loyola, she competed on the Division I Women’s lacrosse team as a scholarship athlete.

Staff photo coming soon

Bobby Mathews, MPAS, PA – C

Bobby Mathews, MPAS, PA-C has been a Physician Assistant at New York Plastic Surgical Group, a Division of Long Island Plastic Surgical Group since 2008. Bobby received his B.S. in Physician Assistant Studies from SUNY Stony Brook in 2002, and then went on to graduate from the University of Nebraska with a Master’s Degree in Physician Assistant Studies in 2009. Bobby has also spent much of his time doing volunteer work for the Garden City Park Fire Department. Bobby is an active member of the Association of Plastic Surgery Physician Assistants, the New York State Society of Physician Assistants, and the American Academy of Physician Assistants. In addition, he was a sub-investigator with two breast reconstruction clinical trials.

Bobby works with plastic surgeon, Dr. Matthew Kilgo, specializing in cosmetic and reconstructive breast surgery.

Bobby Mathews

Gabriella Olazabel, PA-C

Gabriella Olazabal began her studies at the University of Delaware, where she received a Bachelor of Science degree in Exercise Science. After graduating with honors, she continued her education at Weill Cornell Graduate School of Medical Sciences in New York. During that time, she gained experience in different fields such as robotic surgery, burn surgery, plastic surgery, family medicine, emergency medicine, OB/GYN, pediatrics, and critical care.

Gabriella is a board-certified physician assistant through the National Commission on Certification of Physician Assistants and is licensed to practice by the New York Board of Medicine. In 2022, she joined New York Plastic Surgical Group where she works under board-certified plastic surgeon and New York Plastic Surgical Group partner Dr. Jerry W. Chang. As a member of Dr. Chang’s team Gabriella assists in a variety of cosmetic and reconstructive surgeries, as well as helps with the pre- and post-operative care of every patient.

Gabriella is an active member of the Association of Plastic Surgery Physician Assistants, the New York State Society of Physician Assistants, and the American Academy of Physician Assistants. She is also fluent in Spanish.

During her free time, she enjoys traveling, hiking, swimming and spending time with her family and friends.

Gabriella Olazabel, PA-C

Jessica Pereira, PA-C

Jessica Pereira, PA-C is a board-certified Physician Assistant and has been a part of New York Plastic Surgical Group, a Division of Long Island Plastic Surgical Group since 2018.

Currently, Jessica works alongside board-certified plastic surgeon Dr. Tommaso Addona. As a part of Dr. Addona’s team, Jessica is responsible for helping to provide patients with compassionate and comprehensive pre and postoperative care. This includes everything from consultations and follow up visits to interpreting diagnostic laboratory results and medical imaging. In addition, Jessica assists in a variety of reconstructive and cosmetic surgeries. She specializes in breast reconstruction.

Prior to joining our team Jessica trained within a number of medical facilities and fields including family medicine, emergency medicine, pediatrics, internal medicine, long term care, orthopedics, and obstetrics and gynecology. She earned a Bachelor of Science degree in Biomedical Science with a minor in Microbiology from Quinnipiac University in 2016 before completing her Physician Assistant Studies at Touro College in Bayshore, NY in 2018.

Jessica Pereira, PA-C

Rachel Rubin, PA-C

Rachel Rubin, PA-C joined New York Plastic Surgical Group, a Division of Long Island Plastic Surgical Group in 2016 after receiving her Masters of Science in Physician Assistant Studies from Mercy College. Prior to her physician assistant studies, Rachel received her Bachelor of Arts degree in Psychology from Binghamton University in 2013.

After becoming board-certified in 2016, Rachel began her career as a Plastic Surgery PA with Dr. Richard Reish. She has assisted in a wide range of cosmetic surgical procedures including body contouring, rhinoplasty, facelift, and blepharoplasty. It was during this time that she developed a strong foundation in facial anatomy and aesthetics, which led to the start of her career as an injector. Non-surgical facial rejuvenation has become a fascination for Rachel, who now specializes in restoring natural beauty and facial balancing with injectables.

In her spare time, she enjoys traveling, running, and spending time with her family and friends.

Rachel Rubin
See Rachel Rubin’s profile on Healthgrades.

Danielle Sacco, PA-C

Danielle Sacco is a board-certified physician assistant through the National Commission on Certification of Physician Assistants and is licensed to practice by the New York Board of Medicine. She is a graduate of Hofstra University where she received a dual degree including both a Bachelor of Science and a Master of Science in PA Studies.

Immediately after completing her clinical rotations, Danielle joined New York Plastic Surgical Groupin 2020 as a pediatric plastic and craniofacial surgery physician assistant under board-certified plastic surgeon and New York Plastic Surgical Group partner Dr. Rachel A. Ruotolo. As a member of Dr. Ruotolo’s team, Danielle plays an integral role in ensuring the care and success of every patient.

In addition to her position at New York Plastic Surgical Group, Danielle has also spent time working as a pediatric orthopedic physician assistant at Northwell Health. She is an active member of both the New York State Society of Physician Assistants and the American Academy of Physician Assistants.

Danielle Sacco, PA-C

Steve Stavrides, PA-C

Steve Stavrides, PA-C has been a Physician Assistant at New York Plastic Surgical Group, a Division of Long Island Plastic Surgical Group since 2004. He currently works alongside board-certified plastic surgeon and practice partner Dr. Thomas A. Davenport. In this role, Steve assists with cosmetic and reconstructive surgery, microsurgery, and hand, burn, and wound care.

Steve received a BA in Psychology from SUNY Albany before continuing on to complete a BS in Physician Assistant Studies from Touro College. During his graduate studies he was awarded Valedictorian from the PA Program. In addition, he received awards for Outstanding Clinical Student Award and Academic Student Award. Professionally, Steve is a fellow member of the American Association of Physician Assistants, New York State Society of Physician Assistants, and is certified in both Advanced Cardiac Life Support (ACLS) and Basic Life Support (BLS).

Prior to joining our team, Steve worked in the emergency department at Mercy Medical Center, Brunswick Hospital Center, and Winthrop University Hospital where he was awarded employee of the month. In Steve’s free time, he enjoys music, hiking, and photography.

Steve Stavrides

Kristie Summus, PA-C

Kristie Summus began her medical studies at the University of Massachusetts Amherst, where she worked as an Athletic Trainer Assistant and served as an EMT at UMass Emergency Medical Services. She graduated Magna Cum Laude with a BS in Kinesiology, and was on the Dean’s List for 4 years. During that time, she was a member of the Alpha Lambda Delta, Academic Honor Society. She then continued to study health science and received her BS degree followed by a Master’s in Physician Assistant Studies from Touro College.

Prior to joining our team in 2019, Kristie gained experience working as a Physician Assistant at Good Samaritan Hospital in Emergency Medicine. Additionally, she has clinical experience in many fields including family medicine, OB/GYN, pediatrics, long term care, plastic surgery, internal and emergency medicine.

She is associated with the New York State Society of Physician Assistants, and has certifications from the National Commission on Certification of Physician Assistants, Basic Life Support for Healthcare Providers(BLS), Advanced Cardiovascular Life Support(ACLS), Pediatric Advanced life Support, and Emergency Medical Technician-Basic in Massachusetts and New York.

Kristie Summus works with plastic surgeon, Dr. Haritha Veeramachaneni.

Staff photo coming soon

Other Physician Assistants (Bios and Photos Coming Soon)

  • Caileigh Allegrini, PA-C
  • Adriana Coico, PA-C
  • Kasey L. Edwards, PA-C
  • Robert Mazaroski, PA-C
  • Ashley Nichol, PA-C
  • Danielle Sacco, PA-C
  • Samantha Sommer, PA-C
  • Rigoberto Ventura, PA-C

The Doctors at New York Plastic Surgical Group have either authored or reviewed and approved this content.

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