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INTRODUCTION This study addressed deficient information on the provision of infertility care in obstetrics and gynecology clinics. We additionally evaluated the availability of these services based on clinic affiliations or stated sexual orientation. METHODOLOGY We performed a national cross-sectional "mystery caller" survey of 293 general obstetrics and gynecology clinics in 2017-2018. We matched clinics identified by web-based search engine in a 1:1 ratio by Catholic hospital affiliation, after determining number of clinics based on state-population densities. A standard call script included questions regarding provision of infertility services, ovulation induction methods, and information about the caller's sexual orientation. We performed descriptive frequencies and compared responses based on hospital affiliations. RESULTS Of the 293 clinics included, 49% were affiliated with Catholic and 17% with academic hospitals. The majority offered infertility care (85%, 248/293), and of these 97% (240/248) offered ovulation induction. Only 3% (6/240) reported they would not provide to women in same-sex relationships. Most clinics not offering infertility evaluations (43/45, 96%) cited it was outside of their scope of care and of these 33% (15/45) did not provide information for self-referral. Clinics affiliated with academic (aOR 0.23) or Catholic (aOR 0.34) hospitals were less likely to provide evaluations. Those with academic affiliation were more likely to provide information for self-referral (aOR 19.2). DISCUSSION Most general obstetrics and gynecology practices offered appointments for infertility evaluation and ovulation induction. Clinics rarely denied services to women reporting a same-sex partnership, regardless of hospital affiliation. These findings provide reassurance to same-sex couples seeking fertility care.