Fertility Center Staff

Palm Beach Fertility Center Staff

Compassionate Assistance for Growing Families

At our clinic, we only employ caring individuals who are truly dedicated to helping couples and individuals throughout South Florida. Our commitment to your family shows in almost everything we do. From being fully trained in the latest technologies to taking the time to understand your situation and create an infertility plan that is best for your family, to helping all patients in a caring, comfortable environment, our staff is dedicated to helping you.

Schedule an appointment online today with Palm Beach Fertility Center. Call (888) 819-5177 with any questions.


Mark S. Denker, M.D. - Medical Director

Dr. Mark Denker obtained his medical degree from Baylor College of Medicine in Houston Texas. He completed his residency in Obstetrics and Gynecology at University of Miami/Jackson Memorial Hospital and his fellowship in Reproductive Endocrinology at the University of California at Irvine. Dr. Denker has won many prestigious awards including the Pacific Coast Fertility Society prize paper, University of California Research Symposium award and a President's Undergraduate Research Fellowship.

Dr. Denker is a member of the American Medical Association, American Association of Gynecologic Laparoscopists, the Society of Reproductive Surgeons, The Florida Medical Association, and The Society for Assisted Reproductive Technology.

Dr. Denker founded the Palm Beach Fertility Center in 1994 with a philosophy that fertility treatment should be both personalized and affordable. His attention to detail and superior patient care have earned the Palm Beach Fertility Center an international reputation as the premier concierge practice in Florida.

The Palm Beach Fertility Center under the direction of Dr. Mark Denker is know as the "go to" clinic in Florida for First Class Concierge care. Our results speak for themselves, over 23 years' experience with more than 5000 children born due to our treatments and our high success rates. At Palm Beach Fertility Center we are pioneers in treatments such as in vitro fertilization for diminished ovarian reserve, egg donation, and Gestational Surrogacy. Our novel protocols have helped many women become pregnant with a history of failed treatments and cancelled cycles. The Palm Beach Fertility Center is the first clinic in the United States to treat HIV discordant couples, and creator of the "Fertility for his Biological Clock” program for men seeking to establish their own families, the first doctor in Florida to offer INVOcell, and the first IVF program and one of the few fertility doctors in the country to offer Vistara testing for important single gene defects.

Dr. Denker resides in Delray Beach and has five children. His special interests include high power rocketry and scuba diving.


Kailey Asetov, APRN, FNP-BC - Nurse Practitioner

Kailey is a family nurse practitioner, board certified by the American Association of Nurse Practitioners and licensed in the state of Florida. Kailey began working in the medical field as a medical assistant in 2010 while pursuing her Bachelor’s degree in nursing. Kailey graduated with her BSN in 2012 and began her nursing career in pediatric oncology/hematology. While working as a nurse, Kailey obtained her Masters of Science in nursing in 2019. Working in pediatric oncology/hematology was a very emotionally trying job, which prompted her transition to the fertility world. Kailey is passionate about providing care to the entire patient and helping families grow. Kailey believes in building personal relationships with all patients and being there every step of the way!


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

Irina has a Bachelor’s Degree of Nursing Science from DePaul University and an Associate Degree of Business from Loyola University. In 1986, she assisted with the development of one of the first In Vitro Programs in Chicago Metropolitan area as well as the country. 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.

In 1999, Irina joined the Palm Beach Fertility Center. 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.


Eliza Roberts - Practice Manager, Financial Counselor

As the Practice Manager, Eliza has been contributing to the success of The Palm Beach Fertility Center since 2007. In addition to her role as Practice Manager, she is a Certified Medical Assistant and maintains her knowledge by attending Fertility conferences throughout the year. She is also the Administrative Liason on the Florida Society of Reproductive Endocrinology and Infertility Board of Directors. She works closely with Dr. Mark Denker to ensure patients receive the highest level of care.

She is your "go to" person who "makes it happen." Eliza recognizes that financial considerations are very important to our patients. Understanding insurance benefits and obtaining the necessary referrals or authorizations can be cumbersome, confusing and frustrating. This is why Eliza is continuously furthering her education to bring new and informative information to you and the Palm Beach Fertility Center.

At the Palm Beach Fertility Center, she is available to explain the costs of fertility treatment. Eliza's goal is to make infertility treatment as stress-free as possible and to provide compassionate support to our patients. She strives to find new and affordable treatment for each individual based on their own personalized plan.


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

Since 1996, Blanca has been working as an embryologist / andrologist. 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 a 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.


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

Estrella joined our 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 panelist and presenter.

She has written two book chapters in 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)


Kari Ratty -Patient Care Coordinator

Kari graduated from Keiser University of West Palm Beach with an Associate Degree in Medical Assisting. In 2009 Kari was introduced to Dr. Mark Denker and The Palm Beach Fertility Center through her externship with Keiser University. Due to Kari’s work ethics and outgoing personality we decided to make her a permanent part of our team.

Kari is responsible for assisting Dr. Denker during exams and procedures as well as medication injection teaching and phlebotomy. In addition, she works closely with our patients to help them with the emotional highs and lows of infertility. Kari is a mother of two and wants to help others experience the joy of having a family of their own.


Tara Mears - Fertility Medical Assistant, Certified Holistic Nutritionist

Tara is a Certified Holistic Nutritionist and received her certification through the Institute of Integrative Nutrition in New York City. Tara joined the Palm Beach Fertility team in 2014 counseling patients in improving their health during their fertility journey.

In 2016, Tara joined the nursing team as a Fertility Medical Assistant. As a mother of three, Tara’s passion is to help patients achieve their goals to create a family.


Viviane Mesia, C.N.A. - Fertility Medical Assistant


Jessica Villano - Administrative Assistant

Jessica joined Palm Beach Fertility Center in 2016. She coordinates authorizations, referrals, surgery scheduling, financial consults, and transfers for specimens. Jessica loves to be challenged with opportunities to learn and grow.

With the knowledge and understanding that going through fertility treatment can be difficult and stressful she anticipates patient needs. With her compassionate and professional care Jessica strives to exceed patients’ expectations. With her infectious enthusiasm she will brighten your day.


Selena Agosto - Insurance Specialist

Selena has been in the medical industry for 5 years. Selena enjoys helping people and bringing a smile to their face. “Joining the medical field has been one of the best decisions I have made in my life.” My main goal is to make sure every single patient seen at the Palm Beach Fertility Center has a stress free and excellent experience.”


Theresa Corrado - Registered Diagnostic Medical Sonographer

Before joining the Palm Beach Fertility Center in 2015, Theresa was a medical assistant for 12 years in an OB/GYN setting. She saw the struggles and sadness of infertility that her patients experienced, and also witnessed the successes of fertility treatments that helped many to become parents. It has always been in her heart to bring families together, and Theresa has been fortunate enough to help two family’s welcome children into their lives by becoming their gestational surrogate.

Theresa attended Keiser University in Fort Lauderdale and graduated with her Associates Degree in Diagnostic Medical Sonography. Shortly after, she joined our team here at Palm Beach Fertility Center. She is a member of the American Registry for Diagnostic Medical Sonographers, the Society of Diagnostic Medical Sonographers, and the American Institute of Ultrasound in Medicine.

During her time off, Theresa enjoys reading, movies, and spending time with her family.


Dr. Lisa K. Perdue -Acupuncturist

Dr. Lisa K. Perdue is a Japanese-American Acupuncture Physician, board certified by the NCCAOM- 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, Auto Immune, PTSD, Pain Management, Sport Specific Injuries, Women’s Health and Laser Therapy. She is one of the few practitioners integrating laser technology for fertility along with reproductive medicine.


Angela Maple - Outreach Program Manager

Angela started working with Dr. Mark Denker and the team at the Palm Beach Fertility Center in 2010. Angela's role encompasses reaching out to the OB/GYN physicians and their staff. She coordinates Educational Seminars, Staff Luncheons, and Physician Dinners.

When Angela visits OB/GYN offices she provides educational information to ensure excellent medical communication and care. Angela spreads the word about all the great things happening at the Palm Beach Fertility Center through social media on Instagram, Facebook, Twitter, YouTube, and on our website. Angela loves working with Dr. Denker and the team because "Dr. Denker creates a family culture. I'm part of a family that works together to do everything possible to help other families give birth to their dreams.”


Neil R. Stoddart, Ph.D., HCLD, ELD (ABB) - Laboratory Director

(Picture coming soon!)

Dr. Stoddart began his career in Human Embryology in 1994 upon receiving his PhD degree in Mammalian Developmental Biology from the University of Southampton in the United Kingdom. He served four years at NURTURE (Nottingham University Research and Treatment Unit) at University of Nottingham, one of England’s most prestigious and largest IVF programs. He is board certified, as a High Complexity Laboratory Director, & Embryology Laboratory Director, by the American Board of Bioanalysts (ABB) Dr. Stoddart joined the Palm Beach Fertility Center, as Off-Site Laboratory Director, in July 2018, where he supervises the Embryology & Andrology Laboratories and the Clinical Embryologists / Andrologists.

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