const [value, setValue] = useState('');

<TextField
  label="Name of the Hospital/Clinic/Consultation Center, etc."
  multiline
  minRows={2}
  fullWidth
  className="myname"
  value={value}
  onChange={(e) => setValue(e.target.value)}
/>

Style:

.myname {
  label {
    transform: translate(14px, 16px) scale(1) !important;
    color: #000 !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    word-break: break-word !important;
  }

  fieldset {
    legend {
      display: none !important;
      visibility: hidden !important;
    }
  }
}