Protecting Access to Rural Therapy Services (PARTS) Act - Amends title XVIII (Medicare) of the Social Security Act to state that, except with respect to high-risk or complex medical services requiring direct levels of supervision, if the Secretary of Health and Human Services (HHS) requires supervision by a physician or non-physician practitioner for Medicare payment for therapeutic hospital outpatient services, that requirement is met if such services are furnished under the physician's or non-physician practitioner's general supervision.

Directs the Secretary of HHS to establish a process for designating therapeutic hospital outpatient services for which direct supervision may be required for the entire service or direct supervision during the initiation of the service followed by general supervision for the remainder of the service.

Declares without force or effect in law regarding Medicare requirements for direct supervision by physicians for therapeutic hospital outpatient services a specified restatement and clarification under the final rulemaking changes to the Medicare hospital outpatient prospective payment system and calendar year 2009 payment rates, which was published in the Federal Register on November 18, 2008.