Straus Calls

Straus Calls is an unmarked quest in Fallout: New Vegas.

Detailed walkthrough
Ada Straus in Novac is a doctor with cheaper rates than others, including services such as addiction removal and healing for 50 caps, and radiation removal for 100 caps. By asking for all services in one conversation, the price will be reduced to 40 caps.

Behind the scenes
The name of the quest is a play on the phrase "house calls," which are visits a doctor makes to a patient's home in order to treat them.

Bugs
Because of a patch, it is not possible to go through all her treatment options in one conversation, therefore it is impossible to complete this quest.