Veterans Health Administration Caregiver Retention and Eligibility Determination Act of 2019 or the VHA CRED Act of 2019 This bill requires the Veterans Health Administration (VHA) of the Department of Veterans Affairs (VA) to prescribe regulations, administrative guidance, and management controls applicable to the credentialing of certain appointed health care positions. Under the bill, VHA personnel who verify credentials for appointees, review qualifications for such persons, or hire such persons must undergo periodic training to review relevant law and policy regarding provider qualifications for VHA employment. The bill requires the VHA to enroll health care appointees in continuous query of their record within the National Practitioner Data Bank. The VHA must also develop and implement a mechanism for monitoring the continuous query and updating information within the VA's credentialing system. At least once a year, the VHA must audit its appointed health care employees who have an adverse action reported on the National Practitioner Data Bank.