Our Team: Fertility Doctors & Providers Meet our expert reproductive team of fertility doctors and nurse practitioner: compassionate, personable and dedicated to your success. Our fertility physicians Dr. Bill MeyerDr. John ParkDr. Meaghan BowlingDr. Lauren JohnsonRetired Founder Dr. Grace Couchman Our advanced practice providers Alexandra Dieffenderfer, PA-CKaren Onori, FNP-BCNatalie Brantley, MSN, WHNP-BCSarah Yon, MSN, FNP-BC Our dedicated lab leaders Billy (Taeshin) Kim, Ph.D., TS, HCLD – IVF Lab DirectorMeagan Bergeron, MS, TS – EmbryologistCallie Barnwell Gibson, Ph.D., TS (ABB) – Embyrologist MORE FERTILITY TIPS Read our blog for more information about infertility, IVF and more. Fertility Blog