If you're concerned about keeping information between yourself and your medical provider during telehealth appointments, don't worry. Healthcare providers will generally call from a private setting, like their office or patient appointment room.
If you're worried about others overhearing your conversation, consider taking the telehealth appointment in a private space in your home, in your car, or even outdoors (using technology like a hotspot) away from others. Regardless of where you decide to meet with your provider, make sure you have a good connection and feel comfortable speaking openly.