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About
Dr. Guy Ringler came to Los Angeles in 1990 to practice reproductive medicine alongside the founding physicians of California Fertility Partners, the clinic now operating as Pinnacle Fertility Los Angeles, and he has worked there since. He is board-certified in Obstetrics and Gynecology and in Reproductive Endocrinology and Infertility.
He now practices in two cities — the Wilshire Boulevard office in Los Angeles and a Manhattan office at 551 Madison Avenue — and his clinic profile says so plainly. The part of the field he is known in is third-party reproduction: egg donation and gestational carriers, and the family building that follows. Patients travel from Europe, Asia, Australia and Africa for his care, a line that belongs to his practice rather than to the clinic’s overall numbers.
Clinical Expertise
- In Vitro Fertilization (IVF): cycle management built on the customized stimulation protocols the network describes as standard practice
- Surrogacy and third-party reproduction: the area his profile leads with; intended-parent pathways here run through the network’s surrogacy service, which covers matching plus legal and medical support
- Egg donation: donor matching and the medical side of a donor-egg cycle, using the network’s egg bank
- LGBTQ+ family building: his profile describes him as a pioneer in helping gay men have children through egg donation and surrogacy, and he is a Men Having Babies advisory council member
- Patient education: writing on family building in The Huffington Post, The Advocate and Time, and lectures on fertility treatment options internationally
Why Choose Dr. Ringler
In this practice since 1990. He came to Los Angeles that year to work with the physicians who founded California Fertility Partners, and still practices at that clinic, now operating as Pinnacle Fertility Los Angeles.
Third-party reproduction is his lane. Egg donation, gestational carriers and international patients are the work his own profile leads with, and patients travel from Europe, Asia, Australia and Africa for it.
Recognition inside the LGBTQ+ family-building field. The American Fertility Association gave him a Family Building Award, he sits on the advisory council of Men Having Babies, and his profile describes him as a pioneer in helping gay men have children through egg donation and surrogacy. He lives in Los Angeles with his husband.
Directory listings from 2015 through 2024. Castle Connolly Regional Top Doctor every year in that span, America’s Most Honored Doctors in multiple years, Los Angeles Magazine Super Doctor.
Teaching and governance on the record. Clinical faculty at UCLA School of Medicine and a board seat at the American Fertility Association.
Professional Affiliations
Dr. Ringler is board-certified in Obstetrics and Gynecology and in Reproductive Endocrinology and Infertility, and practices inside a SART-member clinic that reports its cycles to the public registry. He graduated with honors from the University of Michigan, then took his medical degree at Wayne State University, where the class award for highest honors in Obstetrics and Gynecology went to him. Postgraduate training followed at the University of Chicago and the University of Pennsylvania, with recognition for research on placental function. He has served on the board of the American Fertility Association, on the advisory council of Men Having Babies, and on the clinical faculty of UCLA School of Medicine, and was a Castle Connolly Regional Top Doctor from 2015 through 2024.
Suitable For
Intended parents who need a gestational carrier, where the carrier search, the legal agreements and the medical side have to be run together.
Gay men and LGBTQ+ couples planning a family through egg donation, surrogacy or both — the population his advocacy work and his awards are built around.
Patients who need a donor-egg cycle, matched through the network’s egg bank.
Patients travelling from outside the United States. His profile records patients coming from Europe, Asia, Australia and Africa, and he sees patients in Los Angeles and New York City.