A State-of-the-Art Fertility Clinic
Offering Quality Care

Stephanie L.F. Gustin, MD, FACOG

Dr. Stephanie L.F. Gustin is a board-certified reproductive endocrinologist and native Nebraskan. She attended Georgetown University School of Medicine and trained in Obstetrics and Gynecology at Stanford University Hospital. She remained at Stanford to complete her fellowship in Reproductive Endocrinology and Infertility. Dr. Gustin served as faculty mentor for the Stanford OB/GYN residency class of 2016, and has published or presented on numerous topics in the field of reproductive endocrinology. She holds a faculty appointment at the University of Nebraska Medical Center.

Elizabeth Constance, MD, FACOG

Dr. Elizabeth Constance is a board-certified reproductive endocrinologist. A Kansas native, she attended the University of Kansas School of Medicine, where she also completed her residency training in Obstetrics and Gynecology. She received fellowship training in Reproductive Endocrinology and Infertility at the University of Michigan. During medical school, Dr. Constance was a volunteer Executive Director of a free medical clinic that provided OB/GYN services to the uninsured, and also sat on boards for organizations dedicated to improving healthcare access in the Kansas City Metro area.

Elizabeth Weedin, DO, MS

Dr. Elizabeth Weedin is a board-certified reproductive endocrinologist and native Nebraskan. She attended the Arizona College of Osteopathic Medicine, and completed her general Obstetrics and Gynecology residency as well as her fellowship in Reproductive Endocrinology and Infertility at the University of Oklahoma Health Sciences Center. During fellowship training, she also obtained a Master's Degree in Clinical and Translational Science through the University of Oklahoma College of Public Health. Dr. Weedin's research interests include how lifestyle and mental health affect infertility.

Abigail A. Delaney, MD FACOG

Dr. Delaney is a board-certified reproductive endocrinologist. A native Nebraskan, “Abby” was born and raised in Omaha, NE. She graduated Suma Cum Laude from Creighton University with a degree in Biology. ​After college, Abby attended medical school and residency at the University of Nebraska Medical Center. She then completed her fellowship in Reproductive Endocrinology and Infertility at the prestigious Mayo Clinic in Rochester, MN. Dr. Delaney’s clinical interests include polycystic ovary syndrome, unexplained infertility, and recurrent pregnancy loss. 

Meghan B. Oakes, M.D, FACOG

Dr. Oakes is a board-certified reproductive endocrinologist with deep ties to Nebraska. She attended the University of Nebraska Medical Center, where she received numerous scholarships. After graduating with honors from UNMC, Dr. Oakes completed her Obstetrics & Gynecology residency at OHSU (Oregon Health & Science University). While at OHSU, she was heavily involved with ACOG (The American College of Obstetrics and Gynecology), serving as both section VIII Junior Fellow Vice Chair and Chair and being selected as 1 of 6 resident reporters to the ACOG annual meeting.

Kathleen Yao, DNP, APRN

Dr. Kathleen Yao is a board-certified Women’s Health Care Nurse Practitioner. She received her Bachelor's Degrees in both Biology and Nursing from Creighton University. She received both her Master's Degree as a Women’s Health Nurse Practitioner and Doctor of Nursing Practice from the University of Nebraska Medical Center, College of Nursing. Dr. Yao's current focuses at the practice include general gynecological care and evaluation of couples experiencing fertility problems. She is currently a patient care coordinator for couples undergoing infertility treatment.

Tiffany Vasa, NP 

Tiffany Vasa is a board-certified Women's Health Nurse Practitioner with 5 years of experience in OBGYN and fertility care. She is a member of the American Society of Reproductive Medicine, Sigma Theta Tau International Honors Society and National Association of Nurse Practitioners in Women's Health. At the office, she enjoys seeing and interacting with patients, getting to be a part of their personalized fertility journey, and has special interest in the impact infertility has on mental health. 

Barry R. Behr, PhD, HCLD

Dr. Barry R. Behr is board-certified as both a High Complexity Laboratory Director and an Embryology Laboratory Director. He received his Ph.D. in Reproductive Physiology from the University of Nevada-Reno. A renowned leader in the research and advances of human reproduction, Dr. Behr has authored many peer-reviewed publications and was a co-inventor of an embryo selection technology that was featured in Time Magazine. He is the director of the IVF/ART laboratory at Stanford University and the former President of the American Association for Bioanalysts.