ObjectiveTo assess whether provision of fertility treatment for patients with polycystic ovary syndrome (PCOS) varies by patient and physician level demographics. DesignRetrospective cohort study SubjectsPatients at a university health system seeking care for PCOS and infertility from 2007-2021. ExposurePatient age, BMI, race, ethnicity, estimated household income, primary insurance payor, provider sex, and provider medical specialty. Main outcome measuresPrescriptions for fertility treatment, including clomiphene citrate, letrozole, and injectable gonadotropins. Differences in patient and physician demographics between patients who did and did not receive a prescription were identified with univariable analysis. Multilevel mixed-effects logistic regression was performed to determine associations between patient and physician demographics and prescription receipt. Results3,435 patients with PCOS and infertility were identified with a mean age of 31.1 +/- 5.7 years. Of the 68.8% of patients who received a prescription, 47.8% of prescriptions were clomiphene citrate, 38.6% letrozole, and 13.7% injectable gonadotropins. There were lower odds of prescription receipt for Black patients compared to White patients (aOR 0.75, 95% CI 0.61-0.93), those with estimated household income below the federal poverty level (FPL) compared to above the national median (aOR 0.71, 95% CI 0.46-0.97), and those with public compared to commercial insurance (aOR 0.53, 95% CI 0.40-0.71). These disparities persisted in a subanalysis of patients prescribed oral medications only with lower odds of prescription receipt for Black compared to White patients (aOR 0.74, 95% CI 0.57-0.95), those with estimated household income below the FPL compared to above the national median (aOR 0.93, 95% CI 0.87-0.98), and those with public compared to commercial insurance (aOR 0.57, 95% CI 0.42-0.76). Black patients waited on average 153.3 days longer than White patients from initial visit to prescription receipt. Patients had lower odds of receiving any prescription from family medicine physicians (aOR 0.36, 95% CI 0.24-0.52) and general internal medicine physicians (aOR 0.55, 95% CI 0.42-0.73) compared to reproductive endocrinologists. ConclusionRacial and socioeconomic disparities exist in the provision of infertility treatments for patients with PCOS. Fewer primary care physicians engaged in first-line fertility treatment, indicating an opportunity for physician education to improve access to fertility care.