Your Fertility Team

Michelle Bigelman PA-C; MMS - Physician Assistant

Michelle Bigelman brings over 20 years of experience as a Board-Certified Physician Assistant specializing in Women’s Health, Fertility, Obstetrics, and Gynecology. She is passionate about optimizing patient’s lifestyles to help their fertility. She enjoys integrating elements of mind-body connection, nutrition, and stress management into her practice and always focusing on the individual patient and their health and wellbeing goals. Michelle earned her Bachelor of Science degree in Nutrition at University of Georgia, and her Master of Medical Science and Physician Assistant degrees from Midwestern University in Chicago with highest distinction. She is certified by the National Commission on Certification of Physician Assistants.

In addition to practicing medicine, Michelle is a certified yoga instructor. Outside of work, Michelle loves spending time with her three children and husband, wearing out her energetic dog with long walks, practicing yoga, and sipping that first cup of hot coffee in the morning.

Michal Wrotslavsky, PA-C, MPAS, MMS - Physician Assistant

Michal Wrotslavsky is an NCCPA Certified Physician Assistant specializing in Women's Health and Fertility, with a background in Adult Primary Care. She is passionate about helping her patients achieve their fertility goals, through incorporating a comprehensive medical approach combined with an overall health and nutrition outlook. Michal earned her Master of Medical Science and Physician Assistant Studies degree from Nova Southeastern University and graduated with distinction.

Michal currently resides in South Florida with her husband and their three children. In addition to fertility and medicine, Michal enjoys swimming, strength training, and spending time with her family.

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Blanca I. Duque, TS/ALT/MT (ABB) - Laboratory Supervisor, Embryologist, Andrologist

Blanca has been working as an embryologist/andrologist since 1996, and she joined Palm Beach Fertility Center in 2005. Passionate about learning, Blanca completed a Masters in Endocrinology and Techniques of Assisted Reproduction IVI in Valencia, Spain.

She is proficient in all aspects of embryology, including:

• Embryo biopsy for PGT (Preimplantation Genetic Testing)
• Embryo and oocyte freezing and thawing
• Intracytoplasmic sperm injection (ICSI)
• INVOCELL
• Culture Semen analysis and freezing
• Preparation of sperm for IUI, TESA and MESA

Certified as a medical technologist with the American Association of Bioanalysts (MT AAB), Blanca is also a technologist supervisor with the American Board of Bioanalysts (TS ABB). She is licensed in Florida as a laboratory supervisor and holds membership in the American Society for Reproductive Medicine (ASRM). Blanca has contributed to medical publications in Colombia, Spain, and Germany. Fluent in English and Spanish, Blanca enjoys reading, swimming, and walking. She is also a Reiki Master and Energy Healer since 2000.

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Estrella Rosemberg, MSc, ELD, TS (ABB) - Laboratory Supervisor, Embryologist, Andrologist

Estrella joined Palm Beach Fertility Center Embryologist team in 2015. She received her Master’s Degree in Physiology of Reproduction at Cornell University, New York City in 1984. She also did a fellowship in the Valencian Infertility Institute (IVI). Since that time, Estrella has been working as an Embryologist, Lab Director, IVF lab Consultant in all basic and advanced IVF techniques including micromanipulation, embryo grading and vitrification of oocytes, ovarian tissue, and embryos. She has extensive experience with andrology lab work, sperm preparation for IUI, sperm DNA fragmentation, and sperm bank management.

She is an expert in embryology staff training, laboratory management, and quality control. She has also participated in numerous international IVF conferences as a panelist and presenter.

She wrote 2 chapters in the book Embryo and Oocyte Cryopreservation. Estrella serves as the Supervisor Representative to The American Association of Bioanalysis Southern Regional Board of Governors. Estrella is licensed in Florida as Laboratory Supervisor in Embryology and Andrology. Licensed Embryology Laboratory Director (ELD) and Technical Supervisor of Andrology and Embryology (TS) by the American Board of Bioanalysis, and a Member of the American Society of Reproductive Medicine. (ASRM)

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Benjamin Sessions, PhD, HCLD, ELD, TS, CC – Embryology Laboratory Director

Dr. Sessions earned his BS in Biology and Chemistry in 1999 and obtained his MS (2004) and PhD (2012) in Animal Science from Utah State University. After completion of his PhD, and prior to beginning his career in human embryology, Dr. Sessions worked as a Research Assistant Professor in the Department of Animal, Dairy, and Veterinary Sciences at Utah State University.

Dr. Sessions is board certified as a High Complexity Laboratory Director by The American Board of Bioanalysis (ABB) and is a licensed Florida Clinical Laboratory Director in Embryology. Dr. Sessions joined Palm Beach Fertility Center as the Off-Site Embryology Laboratory Director in November 2021.

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Dr. Lisa K. Perdue - Acupuncturist

Dr. Lisa K. Perdue is a Japanese American Acupuncturist. She holds board certifications from the National Certification Commission for Acupuncture and Oriental Medicine, Kiiko Matsumoto Style Japanese Acupuncture Practitioner, Certified Laser Provider, and Medical Qigong Practitioner. Since 2000, Dr. Lisa has treated a wide range of medical and health concerns with advanced training in fertility, autoimmune disease, PTSD, pain management, sports-specific injuries, women’s health, and laser therapy. She is one of the few practitioners integrating laser technology for fertility, along with reproductive medicine.

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Irina Livschutz, R.N.C - Nurse Manager, IVF Coordinator

Irina has a bachelor’s degree in Nursing Science from DePaul University and an associate degree in Business from Loyola University. In 1986, she assisted with the development of one of the first in-vitro programs in the country, in the Chicago Metropolitan area. In 1989, she participated in the First Study Pilot Nationwide Certification for nurses specializing in Fertility and Reproductive Endocrinology.

Irina is Past President of Infertility Nurse Association of South Florida and is currently on the Advisory Nursing Board for several pharmacies and pharmaceutical companies specializing in fertility. Irina makes presentations and conducts round table discussions at the Annual Nursing Fertility Meetings.

Irina joined Palm Beach Fertility Center in 1999. She coordinates IVF cycles and ensures each cycle is optimized for pregnancy. Together with Dr. Denker, Irina strives to maintain our reputation as the best and the most patient-friendly program in Florida.

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Katie Gimler, RNC - IVF Coordinator

Katie graduated from the University of Wisconsin- Milwaukee with dual degrees in Biology and Nursing. She began her nursing career in Labor & Delivery. Shortly after she moved to Los Angeles where she worked for 13 years at Cedars Sinai Medical Center earning the President Award for exceptional nursing care. Katie maintains specialty certifications in Labor & Delivery and Ambulatory Nursing.

Katie found her passion in infertility 11 years ago as she was also a patient struggling to conceive. She is committed to helping patients through the process by education, compassion, understanding, and support. She is very excited to be a new member of the Palm Beach Fertility team working to make parenting dreams come true.

Kristine Rose Gruber, BSN, RN - Third-Party Reproduction Coordinator

Kristine completed her first bachelor’s degree in health science studies at Stony Brook University in Long Island, NY. She then pursued her studies at Hartwick College in Oneonta, New York, where she graduated Magna Cum Laude with a bachelor’s degree in nursing. In the initial phase of her nursing career, Kristine worked in a hospital setting, caring for critical cardiac patients before transitioning into Women’s Health. She began her career as an IVF nurse in New York City, where she served for the past 5 years before relocating to South Florida. In 2022, she joined the Palm Beach Fertility team and currently holds the position of Third-Party Reproduction Coordinator. Kristine understands the intricacies of coordinating treatment cycles that involve a third party, such as an egg donor or gestational surrogate. Owing to her meticulous attention to detail and compassionate nature, she acts as the primary contact for all third-party treatment cycles. She continually aims to deliver the highest level of care. Her enduring goal as a nurse is to always advocate for her patients, ensuring their care needs are consistently met.