Aetna is providing physicians with electronic notices about patients' healthcare, such as warnings about potential drug-to-drug or drug-to-disease interactions. "Care Considerations" will now be sent through Aetna's secure provider website via NaviNet, Aetna has announced. Last year, more than 1.6 million Care Considerations were sent by phone, fax or mail to physicians who provided care for Aetna members. Care Considerations alert physicians to opportunities for improved care when care appears to have deviated from evidence-based medical best-practice standards, according to an Aetna release.