1. 2012;15;109-130Saga of Payment Systems of Ambulatory Surgery Centers for Interventional Techniques: An Update
   Health Policy Review
   Vijay Singh, MD, Laxmaiah Manchikanti, MD, and Joshua A. Hirsch, MD.

The health care system in the United States has been criticized for skyrocketing expenditures and quality deficits. Simultaneously, health care providers and systems are under pressure to provide better and more proficient care. The landscape of the US health care system is shaped by federal and private payers which continue to develop initiatives designed to curtail costs. These include value-based reimbursement programs; cost-shifting expenses to the consumer and reducing reimbursement of providers and facilities. Moreover, there is an underlying thought to steer provision of health care to theoretically more efficient settings. Many of these initiatives are based on affordable health care reform.

The major aspects of curtailing health care costs include hospital and other facility payments as well as physician payments and reductions in the approved services. Consequently, ambulatory surgery centers (ASCs) are not immune to these changes. Until 1970, all surgery was performed in hospitals The development of ASCs and site of service differential payments for in-office procedures have changed the dynamics of surgical trends with outpatient surgeries outpacing inpatient surgeries by as early as 1989. By 2008, approximately 65% of procedures were performed in all outpatient settings including hospital outpatient departments. ASCs claim that improved efficiency in health care delivery allows patients to spend less time in the health care setting with quicker turn over, improving the productivity of the health care team. However, since the majority of the ASCs are owned, in part, by the physicians who staff them, the financial incentives related to ownership have been alleged to potentially alter provider behavior.

The number of Medicare certified ASCs and total Medicare payments from 1999 to 2010 increased significantly, but more recent year-to-year changes are far less substantial when compared to previous years. Net percent revenue growth from 2008 to 2009 was 3.2% and from 2009 to 2010 was 6.2% with an overall increase from 1999 of 183% over a period of 11 years. Similarly, the number of Medicare certified ASCs increased from 2,786 in 1999 to 5,316 in 2010, 1.1% increased from 2009 to 2010, however, a 91% increase from 1999 over a period of 11 years.

Interventional pain management is one of the fastest growing specialties with a footprint in multiple disciplines. Interventional pain management in ASC settings has come a long way since June 1998 proposed Health Care Financing Administration’s ASC rule which seriously compromised interventional pain management in the ASC setting. There are many payment challenges facing interventional pain management (IPM) in 2012. Significant changes continue to occur in the payment systems with policies of paying a certain percent of hospital outpatient department payments to ASCs which declined from 63% in 2008 to 56% in 2011, with substantial reductions for add-on codes. The Centers for Medicare and Medicaid Services (CMS) evaluation of IPM codes also consists of multiple misvalued codes.

In conclusion, overall the future of ASCs may appear optimistic, but in the near perspective, specifically in 2012 to 2014, there will be challenging times specifically for interventional pain management centers with the regulatory environment and rapid changes taking place with or without implementation of Affordable Care Act.