Keiko treats a number of patients who live in a remote area of her state. She talks to them via a videoconferencing service. Keiko provides () to her patients.

Keiko provides tele-medicine to her patients.

Explanation:

Telemedicine is the practice or process of providing medical or health assistance from afar when the doctor/ expert and patients are far from each other. This remote treatment between the provider and patient allows for a swifter and easier means to healthcare, especially in times of an emergency or difficult access.

So, in treating her patients living in a remote area through an online video-conferencing means, Keiko provides telemedicine to them.