BSW Austin Oak Hill Medical Center Inpatient Cardiac Sonographer Part Time Mon, Wed and Fri 8a-12p and Tues and Thurs 12p-4p NO CALL Hospital only (inpatients). Echocardiograms, stress echocardiograms, and TEEs About Us Here & we promote the well-being of all individuals, families, and communities. And is the largest not-for-profit healthcare system in Texas that empowers you to live well. Our Core Values are: We serve faithfully by doing what's right with a joyful heart.