William Ziegler, DO, FACOG

Dr. ZieglerDr. William Ziegler is a specialist in Reproductive Endocrinology and Infertility and is the Medical Director of the Reproductive Science Center of New Jersey.

Dr. Ziegler completed a three-year fellowship specializing in reproductive medicine and surgery at the University of Vermont in Burlington. While in Vermont, he had the opportunity to work with nationally known specialists in IVF and ICSI.

During fellowship, he was involved in establishing the first Egg Donor program in the state. Even after completing fellowship, he continued to work with the residents and fellows at the University and facilitated completion of multiple research projects.

patients' choiceSince returning to New Jersey, Dr. Ziegler started the first egg donor program based in Monmouth and Ocean counties, offering some of the highest success rates in New Jersey. He holds faculty positions at both teaching institutions in Monmouth County; Monmouth Medical Center and Jersey Shore University Medical Center (an affiliate of the Robert Wood Johnson Medical Center) and works with both teaching institutions to organize continuing medical education programs to all medical professionals.

He received his medical degree at the University of Osteopathic Medicine and Surgery in Des Moines, Iowa and completed an Internal Medicine internship at Union Hospital in Union, New Jersey. This was followed by a 4-year residency in Obstetrics and Gynecology at the Medical Center of Delaware in Newark, Delaware. As a resident, he received multiple teaching awards and published several papers in peer reviewed journals.

During his three year fellowship, Dr. Ziegler received several awards for his presentations at the national meetings of the American Society of Reproductive Medicine and the Society for Gynecologic Investigation. These presentations focused on stimulation protocols, age – related fertility treatment and uterine blood flow. He recently received teaching accolades from Jersey Shore University Medical Center and has recently authored numerous articles and abstracts in the field of Reproductive Medicine.

Dr. Ziegler is a member of the New Jersey Medical Society, the American Society of Reproductive Medicine, the Society for Reproductive Endocrinology and Infertility, the Society for Reproductive Surgeons, a Fellow of the American College of Obstetricians and Gynecologists, and is a Diplomate of the American Board of Obstetrics and Gynecology. He is also a member of several hospital committees and holds positions on pharmaceutical advisor boards regarding fertility treatment.

Originally from New Jersey, Dr. Ziegler decided to return home and serve the community of Monmouth and Ocean County. Dr. Ziegler is dedicated to providing his patients with the highest quality medical treatment in a caring and compassionate environment.


Fertility Patient Testimonials


I have been in the very BEST of hands

“Dr. Ziegler and his staff have been absolutely wonderful. They are so comforting, warm, and they have helped me through so much. I am 8 weeks pregnant and owe this miracle to Dr. Z and his staff. I would recommend this office to anyone. I have been in the very BEST of hands.”


We will definitely be back for baby #2

“Dr. Ziegler was the most compassionate Doctor we have ever met. He made us feel comfortable from our very first appointment and we immediately felt that we were in great hands with his whole staff. We are very excited that he was able to help us conceive and we will definitely be back for baby #2.”


We are truly blessed!

“Words can not express the gratitude we have for Dr Ziegler and his amazing staff. It’s been 7 years since the birth of our twins. We are truly blessed! I recommend a few of my friends to his practice, and they were all successful as well.”


He always makes time for you

“Dr. Ziegler and entire staff are extremely knowledgeable and professional. He is very patient and truly listens to all of your questions and provides easy to understand responses. He always make time for you and never feel rushed!”


We could never say thanks enough!

“Dr. Ziegler and his team gave us the greatest gift of all! Our son is a year old now and we got pregnant with him on our first IVF cycle! We could never say thanks enough!”
Pat & Janet


Professional infertility doctor, highly recommended

“Dr. William Ziegler gave me accurate diagnosis and treatment. Successful IVF from first attempt. Kind, caring, compassionate attention and no waiting time during appointment. Professional infertility doctor, highly recommended.”


Read more patient experiences.


Listen: Meet Dr. Ziegler audio interview