Transitional Skilled Unit (TSU) If you are ready to leave the hospital but need more time to focus on your recovery from an injury or illness, the transitional skilled unit (TSU) may be right for you. More Information More Home Locations Home Locations Showing 1 - 1 of 1 Locations Changing this value will reload the page with your results Lehigh Valley Hospital–17th Street 1627 W. Chew St. Allentown, PA 18102 United States 610-402-8000 Get Directions in Google Maps to 1627 W. Chew St., Allentown 18102 Get Directions in Google Maps (Map)