Here’s the rule:
Section 1557 builds on prior Federal civil rights laws to prohibit sex discrimination in health care. The final rule requires that women be treated equally with men in the health care they receive and also prohibits the denial of health care or health coverage based on an individual’s sex, including discrimination based on pregnancy, gender identity, and sex stereotyping. The final rule also requires covered health programs and activities to treat individuals consistent with their gender identity
This is interesting. It seems that the government is telling doctors that if a biological man requests PAP smear, or a biological women requests a prostate exam, the doctor is violating federal civil rights laws if he/she/xe refuses.