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Fangyin Meng, MD, Ph.D
Fangyin Meng, MD, PhD, is a skilled reproductive endocrinology and infertility specialist with her own private practice in Orange County, California.
Dr. Meng received her MD and PhD degree as an honored student from Peking University Medical School in Beijing, China, the best medical school in China. She got her PhD degree in genetics, specifically on human embryo genetics. She completed her OB/GYN residency training at Peking University First Hospital and the Albert-Einstein College of Medicine affiliated Bronx-Lebanon Hospital Center. She received the best resident award and surgical skill award when she graduated from the residency program. After her residency training, Dr. Meng completed her reproductive endocrinology and infertility fellowship training at Albert-Einstein College of Medicine.
Dr. Meng has broad interests in human reproductive medicine, which includes human embryo genetics, endometrial receptivity, and cryobiology. Dr. Meng started preimplantation genetic testing, egg cryopreservation, and endometrial receptivity window research in early 2000. She has authored and submitted dozens of abstracts while presenting her data at international and national meetings.
Meet Dr. Meng
Comprehensive care, one convenient location
Infertility
We provide thorough evaluation and customized treatment plans to help individuals and couples overcome infertility challenges, offering compassionate care every step of the way.
In-Vitro Fertilization (IVF)
Our advanced IVF program offers the most effective assisted reproductive technology, helping patients achieve pregnancy while minimizing risks and maximizing success rates.
Recurrent Implantation Failure
We offer specialized testing and targeted treatments for those who have experienced multiple implantation failures, improving the chances of a healthy pregnancy.
Intrauterine Insemination (IUI)
IUI is a simple, minimally invasive fertility treatment. Dr. Fangyin Meng provides expert guidance to help determine if it’s the right option for your path to parenthood.
Authored by Our Team
This randomized clinical study demonstrates that a simplified hormone protocol can achieve similar pregnancy rates to conventional IVF methods, while reducing cost and treatment risk.
View Published Study
A More Patient-Friendly IVF Protocol
This oral medication protocol helps carefully control the timing of ovulation during IVF treatment. It may offer a more convenient alternative to traditional injectable medications, with less discomfort and greater flexibility for patients.
Innovative, Evidence-Based Research
In this randomized controlled trial, the oral protocol achieved a clinical pregnancy rate comparable to the conventional injection-based approach. It also showed potential advantages in convenience, treatment cost, and patient safety—offering a promising new option in modern fertility care.
Dr. Fangyin Meng’s Leadership
Dr. Fangyin Meng is a co-corresponding author of this important study. He played a key role in the study’s academic leadership, publication, and international communication, helping bring this innovative fertility treatment approach to a wider medical audience.
Voice
Kind words from our patients
Dr. Meng is a very good doctor. She always encourages me every time . Dr. Meng is very professional. She understands every change in your body. My husband and I have also consulted other IVF doctors and finally chose Dr. Meng , Dr. Meng will treat you as a family member. She is very professional and will also confirm your condition. This will also make your situation better and more accurate to report to Dr. Meng. Every time I go to Dr. Meng’s clinic, I don’t feel any pressure, but I feel more relaxed. I recommend it very much, and it will definitely be 5 stars! ! !
Sen S.
A mama
Dr. Meng and her entire team are very professional and compassionate. They have closely monitored me every step of the way and calmed all my nerves whenever I was anxious. I am truly grateful for all the attention and care she provided. Dr. Meng and her team are incredible and I would recommend this center for any friends wishing to start a family! Thank you to all the staff at OC Fertility!
Mang F.
A mama
The first time I chatted with Dr. Meng, I felt very kind. There will not be any pressure. When meeting, she patiently explained the process of ivf, no matter what problems encountered, send messages to her, she will quickly reply to my doubts, whether it is surgery or ultrasound is very gentle, the most The important thing is that the success rate is also very high. I can’t believe that I implanted both embryos successfully. I’m really grateful to Dr. Meng.
A Google Reviewer
A mama
If I could rate Dr. Fangyin Meng 10 stars, I would. She is just plain AWESOME!! She takes her time with me and listens to what I tell her. She runs tests as appropriate. She follows up on what is going on with me at the time. I can tell she actually cares about me and my health and provides me with answers in a very timely manner. I’m so grateful I found her in my and it was the best decision I made and I would highly recommend friends and family.
Michelle H.
A Papa
I am 38 years old and already failed IUI twice. One of my friends introduced Dr. Meng to me. My first visit is televisit since I was not in Irvine. Even for a televisit, Dr. Meng was able to get know my tough situation, went through my old medical record together and clearly explained all my options. In the following treatment, she treated me like her family, supported me emotionally and designed IVF plan duo to my special situation. At age 38, I am so thankful that I got the chance to become a mother for my baby girl because of Dr. Meng.
Anna Y.
A Mama
faq
When You Should Call Us
Difficulty Conceiving
If you have been trying to conceive for over a year without success — or for over 6 months if you are 35 years old or older — it’s time to seek professional evaluation. Early assessment can identify potential issues and improve your chances of success..
Repeated Miscarriages
Experiencing two or more miscarriages can be emotionally and physically challenging. We can help investigate possible causes, offer treatment options, and support you toward a healthy pregnancy..
Medical Conditions Affecting Fertility
Endometriosis, a history of ovarian surgery, or a family history of early menopause may reduce your ovarian reserve. We provide specialized testing and tailored treatments to address these challenges..
Family-Building for Single or Same-Sex Couples
Whether you are single or in a same-sex relationship, we can help you achieve your family goals through sperm donation, egg donation, or gestational surrogacy — with compassionate guidance at every step..
General Reproductive Health Questions
If you have concerns about your reproductive health, even without immediate plans for treatment, we’re here to provide clear answers, expert advice, and the reassurance you need to make informed choices..