patients must return for physical therapy treatments. (16) Those services intended to be covered under the IOAS exception are not affected by this legislation. (17) The exception to the ownership or investment prohibition for rural providers in the Stark rule is not affected by this legislation. (b) Purposes The purposes of this Act are the following: (1) Maintain the in-office ancillary services exception and preserve its original intent by removing certain complex services from the exception—specifically, advanced imaging, anatomic pathology, radiation therapy, and physical therapy. (2) Protect patients from misaligned provider financial incentives. (3) Protect Medicare resources by saving billions of dollars. (4) Accomplish the purposes described in paragraphs (1), (2), and (3) in a manner that does not alter the existing exception to the ownership or investment prohibition for rural providers. 3. Limitation on application of physicians’ services and in-office ancillary services exceptions (a) In general Section 1877(b) of the Social Security Act ( 42 U.S.C. 1395nn(b) ) is amended— (1) in paragraph (1), by inserting , other than specified non-ancillary services, after section 1861(q))