• James M Whedon and Matthew A Davis.
• Health Services Research, The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH, USA. james.m.whedon@dartmouth.edu
• J Manipulative Physiol Ther. 2010 Oct 1; 33 (8): 558-61.

ObjectiveThe objective of this study was to examine the volume and rate of Medicare Part B claims for chiropractic spinal manipulation longitudinally from 1998 to 2004.MethodsA descriptive retrospective analysis was performed on Medicare part B claims from 1998 to 2004 using the Medicare Part B Standard Analytical Variable Length File. Using a 5% random sample of Medicare part B claims, the total number of claims were determined for chiropractic spinal manipulation procedures, and the rate of chiropractic spinal manipulation procedures per 1000 beneficiaries.ResultsFrom 1998 through 2003, the number of chiropractic spinal manipulation claims increased by 38% (from 824,249 total claims in 1998 to 1,133,872 in 2003) followed by a 24% decline from 2003 to 2004. The rate of total chiropractic spinal manipulation claims rose 29% from 649 claims per 1000 beneficiaries per year in 1998 to a high of 839 claims per 1000 beneficiaries per year in 2003 and then declined by 25% to 632 claims per 1000 beneficiaries per year in 2004.ConclusionMedicare Part B claims for chiropractic spinal manipulation increased significantly from 1998 to 2003 and then abruptly declined from 2003 to 2004. Estimates for 2004 are at variance with earlier published estimates.Copyright © 2010 National University of Health Sciences. Published by Mosby, Inc. All rights reserved.

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