This bill, titled the Maximizing Outcomes for Moms through Medicaid Improvement and Enhancement of Services Act (MOMMIES Act), seeks to significantly improve healthcare access and quality for low-income pregnant and postpartum individuals under Medicaid and the Children's Health Insurance Program (CHIP). A core provision extends continuous Medicaid and CHIP coverage for these individuals from the current 60-day period to a 1-year period following pregnancy, with states having the option to elect an even longer duration. This extended coverage ensures access to a full range of medical assistance benefits, comparable in amount, duration, and scope to those available to other Medicaid beneficiaries. The legislation also mandates that states provide comprehensive oral health services for pregnant and postpartum individuals under Medicaid, covering preventive, diagnostic, periodontal, and restorative care. To safeguard these enhancements, a maintenance of effort (MOE) provision prevents states from implementing more restrictive eligibility standards or reducing benefits for low-income pregnant individuals. Furthermore, states will receive a 100 percent Federal Medical Assistance Percentage (FMAP) for additional expenditures incurred due to these new requirements, incentivizing their implementation. A significant component of the bill is the establishment of a 5-year Maternity Care Home Demonstration Project . This project will provide grants to states to implement or expand maternity care home models, aiming to improve maternal and infant care outcomes, enhance birth and health equity for underserved populations, and decrease maternal morbidity and mortality. Participating states will partner with eligible entities like birth centers and federally qualified health centers to offer coordinated, culturally and linguistically appropriate care, including risk assessments, care coordination, and essential support services. The bill also addresses payment for primary care services under Medicaid by reapplying the Medicare payment rate floor and expanding the definition of eligible providers. This includes obstetricians and gynecologists, advanced practice clinicians (such as nurse practitioners and certified nurse-midwives), rural health clinics, and federally qualified health centers. States may also increase payment rates by up to 25 percent for services furnished in rural, health professional shortage, or medically underserved areas, and managed care entities will be required to adhere to these payment standards. Finally, the legislation mandates several reports and guidance documents to further support maternal health. The Medicaid and CHIP Payment and Access Commission (MACPAC) will report on the coverage of doula services under State Medicaid programs, identifying barriers and effective strategies to increase their use and ensure sustainable compensation for doulas. Following this, the Centers for Medicare & Medicaid Services (CMS) will issue guidance to states on increasing access to doula services. Additionally, the Government Accountability Office (GAO) will report on State Medicaid programs' use of telehealth to increase access to maternity care, examining program characteristics, outcomes, and barriers.