Patient Portal. Our Patient Portal is a free-to-use service that allows you to view your important medical information from wherever you are, through your own web browser. ... 1500 West Elk Avenue Elizabethton, TN 37643. 401 East Main Street Johnson City, TN 37601. 437 Hwy 321 Hampton, TN 37658. Contact. Call or Text: 423-929-2584. Fax: 423-722 ....