Is a vampire safe going to a regular medical doctor, or can they conceal their vampirism?

Depends. If they went for a check up, probably. If they needed blood tests or tissue test … then maybe. If just regular blood tests probably, but if going for any sort of DNA test, including Parental testing, the differences in DNA might catch the attention of the Lab worker.

Source: www.geocities.com/vampiricstudies/