Patient Safety and Health Care Whistleblower Protection Act of 1999 - Prohibits retaliation or discrimination against a health care worker because the worker disclosed information, advocated for patients, or initiated, cooperated with, or participated in any governmental investigation or proceeding regarding the care, services, or conditions of a health care entity if: (1) the information is true; and (2) the information disclosed evidences a violation of a law, rule, or professional standard or relates to matters endangering patients, workers, or the public. Prohibits contracts, policies, and procedures restricting the actions for which retaliation or discrimination is prohibited. Declares that these provisions do not protect disclosures violating confidentiality law.

Prohibits disclosing the identity of the worker, subject to exception. Provides for enforcement through private civil actions and, for certain willful and repeated violations, criminal penalties. Declares that this Act does not preempt other laws and allows States to enforce laws providing equivalent or greater worker protections.