Starwood Hotels


Receive the star treatment and exclusive benefits of Starwood's invitation-only Preferred Business level at quality hotels, including The Luxury Collection, Westin, St. Regis, W Hotels, Sheraton, Le Meridien Hotels, aLoft Hotels, Element Hotels, and FourPoints by Sheraton. 

You'll also receive: 

  • Two StarPoints for every eligible U.S. dollar spent at Starwood hotels
  • An enhanced room at check-in1
  • 4pm late check-out at most Starwood hotels2

For reservations, personal account information, or enrollment details, please call 888-625-4988, and quote your Starwood membership number (345075) for preferred rates. You can also enroll or access your account information online at

Enroll Now


1 Subject to availability for the length of the stay, provided the room was not booked through a prepaid, third-party channel, including,, and Enhanced rooms are rooms on higher floors, corner rooms, newly renovated rooms and rooms with preferred views. Enhanced rooms do not include suites. Not offered at Aloft® and ElementSM hotels.

Subject to availability at resort and conference center hotels.


The American College of Radiology (ACR) does not endorse any services and products offered to its members through the ACR Benefits Plus™ Program. We assume no responsibility for any specific use of the services and products by a member or his or her practice. Additionally, ACR disclaims all liability for any claims or damages that anyone asserts based on using any of these services or products. We encourage members to assess whether and how a particular service or product might fit their individual needs.