John Gordon, MD
Reproductive Endocrinologist
11132 Kingston Pike
Knoxville, TN 37934
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41 providers
Availability last updated 08/09/2026
John Gordon, MD
Reproductive Endocrinologist
11132 Kingston Pike
Knoxville, TN 37934
David Cohen, MD
Reproductive Endocrinologist
409 W Huron St Ste 500
Chicago, IL 60654
Anne Borkowski, MD
Reproductive Endocrinologist
4250 Dempster St
Skokie, IL 60076
Botros Rizk MD, MA, FACOG, FACS, HCLD, FRCOG, FRCS, is an experienced infertility and reproductive medicine physician serving patients at Elite IVF, which has locations in The Woodlands, Houston and Fulshear, Texas, Tennessee, and Fairhope, Alabama. He is a pioneer in the field of infertility and reproductive medicine, with over 30 years of experience.
Dr. Rizk earned his medical degree at the Cairo University School of Medicine. He then completed his fellowship in endocrinology at the esteemed Bourn Hall Clinic before becoming a clinical lecturer at Cambridge University. There, Dr. Rizk worked with Robert Edwards, who won the Nobel Prize for in vitro fertilization (IVF) in 1978 and published 28 textbooks on the subject.
Today, Dr. Rizk is the medical and practice director of Elite IVF in Texas, Tennesse, and Alabama. As a respected physician surgeon and researcher, he has authored and edited more than 400 articles, book chapters, and abstracts over the last 25 years.
Dedicated to improving the lives of his patients, Dr. Rizk is passionate about helping couples and individuals who are looking forward to becoming parents but are having a difficult time actualizing that dream on their own. To schedule a consultation with Dr. Rizk and the team at Elite IVF, call the office nearest you or request an appointment online.
Dr. Botros Rizk, MD
Reproductive Endocrinologist
19450 S. Greeno Rd
Fairhope, AL 36532
Mostafa Abuzeid, MD
Reproductive Endocrinologist
16605 Southwest Fwy #365
Sugar Land, TX 77479
About Elite IVF
Elite IVF is an infertility and reproductive medicine practice with locations in The Woodlands, Odessa, Houston and Fulshear, Texas, Nashville, Tennessee, and Fairhope, Alabama. Led by infertility expert Botros Rizk, MD, MA, FACOG, FACS, HCLD, FRCOG, FRCS, the practice helps people achieve their dreams of becoming parents with advanced fertility treatments and concierge services.At Elite IVF, patients can experience unmatched attention and care. Dr. Rizk and his team provide individualized care, targeting patients’ specific problems with cutting-edge treatment techniques. They often use the DaVinci® robotic system to perform safe infertility treatments and procedures with minimal risks and high success rates.
The Elite IVF team is dedicated to helping patients find correct diagnoses and successful treatments. They frequently treat patients for polycystic ovary syndrome, noncancerous growths like fibroids and polyps, recurrent pregnancy loss, and other forms of infertility. They often recommend in vitro fertilization, a highly successful alternative to traditional conception.
The Elite IVF team also helps patients with egg and sperm donation and surrogacy. If patients can’t naturally get pregnant with their own gametes and those of their partners, the team helps them decide whether or not to use donor zygotes.
If you or your partner are struggling to get pregnant, schedule a consultation at Elite IVF by phone or book online today.
Christen Altermatt, MD
OB-GYN
19450 S. Greeno Rd
Fairhope, AL 36532
Ahmet Helvacioglu, MD
Reproductive Endocrinologist
2743 Imperia Drive
Suite 101
Sugar Land , TX 77479
Scott Zeitlin, MD, is one of the top urologic surgeons in the Los Angeles area. His practice, Los Angeles Infertility and Prostatitis, has locations in Century City, Santa Monica, and Tarzana, California.
Dr. Zeitlin is an internationally recognized specialist in fertility, microsurgery, prostate health, and erectile dysfunction. For nearly 30 years, he’s been helping men overcome fertility challenges. His skill in diagnosing and treating male infertility has helped countless couples achieve their goal of parenthood.
Dr. Zeitlin completed CUNY Brooklyn College’s prestigious coordinated 7 year BA-MD program. He earned his Medical Doctorate at SUNY Downstate Medical Center.
He also completed his junior residency in surgery and urology residency at SUNY Downstate.
During his Urology residency, Dr. Zeitlin studied urologic oncology at the Memorial Sloan Kettering Cancer Center. After completing his residency he was a fellow in male infertility, microsurgery and erectile dysfunction in the UCLA Department of Urology. Since 1998, he’s taught at the David Geffen School of Medicine at UCLA and has gone from a clinical instructor to Clinical Professor of Urology. He was a member of the faculty executive committee of the David Geffen School of Medicine from 2012 to 2014.
Dr. Zeitlin’s colleagues have selected him to Super Doctors for 18 years in a row and is part of their Legacy Member Hall of Fame. Los Angeles Magazine named him a “Top Doctor” in 2019. He currently belongs to the American Urologic Association, American Society for Reproductive Medicine, Society for the Study of Male Reproduction, and was previously on the Pacific Coast Reproductive Society’s board of directors. In 2020, Dr. Zeitlin was awarded the UCLA Urology Voluntary Clinical Faculty of the Year for the 3rd time by the UCLA Urology residents.
He received a Master Teacher in Urology Award from the SUNY-Downstate Alumni Association. In addition to teaching, he performed NIH-funded research at UCLA for over a decade as part of the Chronic Prostatitis Collaborative Research Network.
He has published in the journal Steroids, Urology, Journal of Urology, Journal of Surgical Oncology, Prostate Cancer and Prostate Diseases, British Journal of Urology, Annals of Internal Medicine, Contemporary Urology, Reviews in Urology, Patient Care, Expert Reviews in Neurotherapeutics, Archives of Internal Medicine, Case Reports in Urology, Journal of Assisted Reproduction and Genetics, Cerebellum, Fertility and Sterility and the New England Journal of Medicine.
Though Dr. Zeitlin is grateful for the recognition he’s received as a clinician, professor, and researcher, his greatest reward is helping patients start families and overcome urological conditions.
Dr. Scott Zeitlin, MD
Urologist
2080 Century Park East
Suite 1407
Los Angeles, CA 90067
Kavitha Persaud, MD, is a double board-certified physician who works at the University Reproductive Associates offices in Wayne, New Jersey, and Goshen, New York, covers Doc of the Day at Hasbrouck Heights, and provides care there as needed.
A New Jersey native, Dr. Persaud received her Bachelor of Science from Lehigh University in Bethlehem, Pennsylvania, before completing her medical degree at the Drexel University College of Medicine in Philadelphia. She then completed her REI fellowship at Rutgers-New Jersey Medical School, following in the footsteps of University Reproductive Associates physicians Peter McGovern, MD, Susan Wolf, MD, Adam Fechner, MD, and Sara Morelli, MD, PhD. It was during Dr. Persaud’s fellowship that she learned about University Reproductive Associates and knew that was where she hoped to practice.
Dr. Persaud’s three-year REI fellowship consisted of 18 months of research followed by another 18 months of clinical experience, predominantly at University Reproductive Associates, where she worked one-on-one with all of the physicians in the group practice to learn about reproductive endocrinology and infertility, assisting with surgeries and observing how they interact with patients.
Dr. Persaud knew she wanted to specialize in obstetrics as she loved the prospect of bringing life into the world. She was drawn to the subspecialty of infertility because it was a way of helping couples become families through the ever-changing technological and medical treatments and procedures.
Dr. Kavitha Persaud, MD
Reproductive Endocrinologist
30 Hatfield Ln
Suite 109B
Goshen, NY 10924
Anat Chemerinski, MD, is a highly skilled and board-certified reproductive endocrinologist, infertility specialist, and integral part of the team at University Reproductive Associates. Dr. Chemerinski takes great pride in helping those in her care achieve their dreams of parenthood through her work with patients at the office in Hasbrouck Heights, New Jersey.
Dr. Chemerinski completed her undergraduate studies at Cornell University in Ithaca, New York. She earned her medical degree from the University of Maryland School of Medicine in Baltimore before completing a residency at the Hospital of the University of Pennsylvania in Philadelphia, where she eventually became an administrative chief resident in obstetrics and gynecology.
Fellowship training in reproductive endocrinology and infertility at Rutgers Biomedical and Health Sciences in Newark, New Jersey, further enhanced Dr. Chemerinski’s education and experience. She’s earned multiple honors and awards, including the Gold Humanism Honors Society and the William D. Kaplan, MD, Award for Humanism in the Practice of Medicine. Dr. Chemerinski was recently honored with acceptance into the ASRM/NICHD/Duke Clinical Research/Reproductive Scientist Training Program (CREST).
Dr. Chemerinski will continue her research at Rutgers while working with patients at University Reproductive Associates, providing those in her care with the latest advancements in reproductive medicine.
Dr. Anat Chemerinski, MD
Reproductive Endocrinologist
214 Terrace Avenue
Hasbrouck Heights, NJ 07604
Ndidiamaka Onwubalili, MD, is a reproductive endocrinologist, infertility specialist, and an essential team member at University Reproductive Associates. Dr. Onwubalili works with patients at the offices in Millburn and Denville, New Jersey, and Goshen, New York, and performs surgeries and procedures at Hasbrouck Heights, providing personalized care in a warm and welcoming manner.
Dr. Onwubalili has always embraced the challenges and rewards of higher education. She earned her Bachelor of Science in biology at Georgian Court College in Lakewood, New Jersey, before completing her medical degree at Dartmouth Medical School in Hanover, New Hampshire.
She followed those degrees with a residency in obstetrics and gynecology at Duke University in Durham, North Carolina, where she served as administrative chief resident. Dr. Onwubalili then completed fellowship training in reproductive endocrinology at New Jersey Medical School in Newark and is a fellow of the American College of Obstetricians and Gynecologists.
Dr. Onwubalili makes every effort to get to know those in her care. She understands the emotional challenges that accompany reproductive health challenges and strives to make patients feel secure in the quality of care they can expect from University Reproductive Associates.
Dr. Ndidiamaka Onwubalili, MD
Reproductive Endocrinologist
16 Pocono Rd
Suite 216
Denville, NJ 07834
Rita Gulati, MD, is an accomplished, double board-certified Reproductive Endocrinology & Infertility specialist. She sees patients at University Reproductive Associates in Wayne, New Jersey.
Dr. Gulati achieved her Bachelor of Science from Rensselaer Polytechnic Institute in Troy, New York, in a 6-year accelerated BS/MD program, where she distinguished herself by graduating cum laude. Dr. Gulati completed her medical degree at Albany Medical College and her Obstetrics and Gynecology residency at Emory University School of Medicine. Her training culminated with a fellowship in Reproductive Endocrinology and Infertility at the University of Connecticut Health Center.
For more than 20 years, Dr. Gulati has offered compassionate women’s reproductive health care to her patients throughout the New York Metropolitan area. Her areas of expertise include infertility, PCOS (Polycystic Ovarian Syndrome), fertility preservation, third-party reproduction, and recurrent pregnancy loss. “I want my patients to feel welcomed and most importantly, heard,” she explains. “They each have a unique story and a different journey than anyone else. It’s all about them and no one else.”
Dr. Gulati is affiliated with St. Barnabas Medical Center, Morristown Memorial Hospital, and Robert Wood Johnson University Hospital. She shares her expertise and experience as a lecturer to staff, fellows, residents, and medical students at these institutions. Dr. Gulati is helping to train the next generation of Obstetricians and Gynecologists via objective structured clinical examination (OSCE) for the OB/GYN clerkship clinical and pelvic model training.
Dr. Gulati resides in Bergen County with her husband, where she enjoys gardening, hiking, golf, tennis, and running half-marathons. She has also helped to establish a Women’s Ministry at her parish with a focus on spirituality for girls and women alike. A proud mother of two grown daughters, she holds family above everything else.
Dr. Rita Gulati, MD
Reproductive Endocrinologist
57 Willowbrook Blvd
#301
Wayne, NJ 07470
Dr. Katie Doody is a Reproductive Endocrinology and Infertility specialist at CARE Fertility. She completed her undergraduate studies at Rice University and earned her medical degree from Baylor College of Medicine. Dr. Doody completed her residency in Obstetrics & Gynecology at UT Southwestern where she was Chief Resident. She further specialized with a fellowship in Reproductive Endocrinology and Infertility at the University of Southern California.
Dr. Doody strives to provide excellent, personalized, and comprehensive care for her patients. She received the Peggy Whaley Medicus Award in 2021, for her outstanding professionalism, integrity, and dedication to her patients. She was also awarded the UT Southwestern OBGYN Minimally Invasive Surgery Resident Award in 2020 for her dedication and passion for providing advanced surgical care.
Dr. Doody’s clinical interests focus on fertility preservation and increasing access to fertility care, reflecting her commitment to helping patients achieve their family-building goals. Outside of her medical practice, she enjoys running, reading, traveling, and spending quality time with her family and dog.
Dr. Kathleen Doody, MD
Reproductive Endocrinologist
1701 Park Place Avenue
Bedford, TX 76022
Dr. Kimberly Yau is a Reproductive Endocrinology and Infertility (REI) specialist at CARE Fertility, committed to providing compassionate, patient-centered care. Fluent in Spanish and Mandarin Chinese, she strives to create an inclusive and supportive environment for patients from all backgrounds. She is dedicated to guiding patients through their unique fertility journeys and helping them achieve their family-building goals with empathy, expertise, and evidence-based medicine.
Originally from Atlanta, Dr. Yau graduated with High Honors from the University of Georgia with dual bachelor's degrees in Chemistry and Biochemistry, a minor in Spanish, and was inducted into the Phi Beta Kappa honor society. She earned her medical degree from the University of Virginia and completed her OB/GYN residency at UT Southwestern/Parkland Hospital, where she was selected as an Administrative Chief Resident. She then completed her fellowship in REI at the University of Southern California before returning to Texas.
Dr. Yau's clinical and research interests include polycystic ovary syndrome (PCOS), third-party reproduction, quality improvement, and expanding access to fertility care. She is recognized for both her clinical excellence and surgical proficiency—earning the 2021 Excellence in Minimally Invasive Gynecology Award from the American Association of Gynecologic Laparoscopists. For her commitment to advancing reproductive medicine, she received the 2023 USC Broad Clinical Research Fellow Award for her innovative stem cell research at the USC Broad CIRM Center for Regenerative Medicine and Stem Cell Research.
Outside of work, Dr. Yau enjoys staying active with Orangetheory and pilates, traveling, exploring new restaurants, and spending time with her husband and mini dachshund, Harry.
Dr. Kimberly Yau, MD
Reproductive Endocrinologist
1250 8th Ave
Suite 365
Fort Worth, TX 76104