Fighting the Opioid Epidemic with Sunshine Act of 2018 This bill expands Medicaid and Medicare reporting requirements related to the transparency of physician ownership or investment interests. Under current law, a manufacturer of drugs, devices, or medical supplies that are covered under Medicaid or Medicare must regularly report on any payment or transfer of value by the manufacturer to a “covered recipient,” defined as either a physician who is not an employee of the manufacturer or a teaching hospital. The bill expands the definition of “covered recipient” to also include any of the following practitioners who is not an employee of the manufacturer: (1) a physician assistant, (2) a nurse practitioner, (3) a clinical nurse specialist, (4) a certified registered nurse anesthetist, or (5) a certified nurse-midwife.