Our myUHS portal gives you access to MyChart, myBillPay, and CareLink Re-Enrollment. ... MyChart is a new patient portal that keeps all of your health information together in one place. ... customer service at 210-358-9500 or toll free at 877-766-5533, Monday – Friday, 8:30 a.m. - 5 p.m. You also may email University Health at UHS.PBS@uhs-sa ....