Our Embryology Team

Discover our dedicated team of embryology experts committed to bringing precision, care, and expertise to every stage of your fertility journey.


Meet Our Embryologists

With years of experience and a passion for helping families grow, our embryology team employs the latest advancements in assisted reproductive technologies to maximize your chances of success.

Dr. John Zhang, IVF Lab Director

John Zhang, Ph.D, serves as the IVF Lab Director at IVF1, located in Chicago, IL. Prior to his current role, Dr. Zhang held prominent positions at Northwestern University Feinberg School of Medicine and Northwestern Medicine, where he was a clinical professor of Obstetrics and Gynecology, as well as the Director of the Master of Science in Clinical Embryology program, later evolving into the Master of Science in Human Reproduction and Embryology. He also managed the IVF Lab there. With over 25 years of expertise in IVF laboratory practice, Dr. Zhang has made significant contributions to the field, including his involvement with the Pinnacle Embryology School. His leadership has been instrumental in the success of numerous IVF labs, and he has mentored many embryologists who have gone on to achieve remarkable success in Chicago and elsewhere.

Sabrina Meyers, IVF Laboratory Supervisor

Sabrina Meyers graduated in 1999 from the University of Illinois, Urbana-Champaign with a BS in Animal Science, focusing on reproductive physiology. From there she worked as an andrologist at the South Florida Institute for Reproductive Medicine in Miami, FL. In 2004, she completed her MS degree in Animal Science from Louisiana State University, again focusing on reproductive physiology. Her thesis involved the vitrification of bovine oocytes for nuclear transfer. Sabrina has worked as a clinical embryologist for both Charles E. Miller & Associates and Northwestern Medical Faculty Foundation.

Janice Sangabriel, Embryologist

Janice Sangabriel received a Bachelor of Sciences degree in Biology from the University of St. Francis in May of 2015. Upon graduation, Janice worked as a laboratory technician specializing in laboratory quality control. In 2016, Janice began her embryology career at Center for Reproductive Health, in Crest Hill, IL. She was the junior embryologist and Andrology technician.

Janice is very passionate and dedicated to the embryology and reproductive field. She loves to stay up to date with the latest embryology news and assisted reproductive technology. Janice also enjoys attending workshops to learn new skills and enhance her experience. She is an active member of the Chicago Area Reproductive Association.

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Patient Testimonials

Dr. Morris is by far the best fertility doctor! When I transferred to IVF1 from my previous fertility doctor, he read all my medical records in depth. Never once did I feel stressed or unsure of what was happening. The entire staff there is so nice and make you feel so comfortable. It was so easy to schedule appointments, get medications, or ask a nurse a question. My calls were always returned within 20 minutes. I highly recommend IVF1! Dr. Morris made it possible for us to get pregnant!


The staff is amazing here. I’m in the middle of IVF and had an issue with a medication and they went above and beyond to make sure everything was done to continue our journey (on the weekend no less); truly above and beyond. The staff are very caring and professional. Definitely recommend Dr. Morris and this amazing practice.

Megan Buetikofer

Thanks to Dr.Morris I am holding today my little dream girl. I don't have enough words to express how thankful I am to him and everyone working in IVF1 Naperville. Highly recomend Dr.Morris and his clinic to everyone looking for real professional help and attitude!

Petya Vasilev

I don't even know where to start...THANK YOU! Thank you for giving us our son. We went through a year of IVF. Although there may have been things I didn't want to hear (chances of pregnancy, factors out of our control, etc.) it was important to hear the truth and know what our chances were. The staff was always great with us and they were very patient. They really have everything figured out and what the best options out for outcomes. I never felt pressured to make certain decisions and always felt well informed. Again, I can't thank Dr. Morris and all his staff for everything!!!

Lauren Throm

I’m so grateful to have been referred to Dr. Morris and his team! I’ve spent the last month or so working with the team and they’ve made what is naturally a hard process both mentally and physically as comforting and easy as possible. Dr. Morris’s success rates speak for themselves, but what I want to let everyone know is that he is equally comforting. A special thank you to Jocelyne, Pam and Barbie, these three women on his staff from front desks to RNs really have made the experience an extremely positive one. PS. My cousin who referred me to Dr. Morris has a smart, healthy and beautiful baby boy who he helped bring into this world!

Alex Villa

Amazing staff. They made us feel like family. They cried when I called to tell them the birth of our daughter. Starting round two next month. Simply the best. They care!

BT Warner

Dr. Morris and staff were very friendly. Dr. Morris was very informative and patient with answering all questions I had. We were uncertain on the options and next steps to take and Dr. Morris explained all the details and options we have. Excellent staff and a great doc.

Jenita Crawford

He is a very professional and good doctor. the whole clinic is very nice. all the staff are amazing. The doctor operated on me for endometriosis and I got pregnant during the second IVF. we have a wonderful 1 year old son. thank you doctor we still have an embryo, I think I will definitely come back to you in a year or two.

Ziva Ru

I honestly can’t praise this company enough. Dr. Randy Morris bedside manner is absolutely amazing, his staff professionalism and customer service is also amazing. Your experience with this company will be nothing but perfect. From the initial call to the receptionist. To speaking with the nursing staff, billing, etc. everyone wants to help you with family planning. No matter what my outcome is, I know I’m with a co that will make sure I have the best chances. Thank you to Dr Randy Morris and Staff a bunch!

Misty Johnson
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