. >> reporter: it's a regular event organized and run by diane tieman, a registered nurse who's on thehurch staff. >> i do health education classes. i do blood pressure screenings. i take calls from people that want information about the health care system, about themselves and their health concerns. >> reporter: and she does a lot more. home visits are an essential part of tieman's job as a parish or faith community nurse, helping church members, many of whom are elderly, prepare for doctor visits and surgeries. >> let's just listen to your heart. >> reporter: parish nurses are health counselors and advocates. they do not provide treatment. but there's more to the job than checking vital signs, reviewing medications, and helping people navigate the health care system. >> people just need to be heard and need to be listened to, and as a parish nurse that's one of the greatest things that we do is be present and just listen. >> diane's been a gem. if she doesn't make it to heaven, nobody will. she's been great. >> reporter: parish nursing is one of the fastest growing specialty practice