NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Working Papers by Peter J. Huckfeldt

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Working Papers

February 2012Effects of Medicare Payment Reform: Evidence from the Home Health Interim and Prospective Payment Systems
with Neeraj Sood, José J Escarce, David C. Grabowski, Joseph P. Newhouse: w17870
Medicare continues to implement payment reforms that shift reimbursement from fee-for-service towards episode-based payment, affecting average and marginal reimbursement. We contrast the effects of two reforms for home health agencies. The Home Health Interim Payment System in 1997 lowered both types of reimbursement; our conceptual model predicts a decline in the likelihood of use and costs, both of which we find. The Home Health Prospective Payment System in 2000 raised average but lowered marginal reimbursement with theoretically ambiguous effects; we find a modest increase in use and costs. We find little substantive effect of either policy on readmissions or mortality.

Published: Huckfeldt, Peter J. & Sood, Neeraj & Escarce, José J. & Grabowski, David C. & Newhouse, Joseph P., 2014. "Effects of Medicare payment reform: Evidence from the home health interim and prospective payment systems," Journal of Health Economics, Elsevier, vol. 34(C), pages 1-18. citation courtesy of

June 2011The Effect of Prospective Payment on Admission and Treatment Policy: Evidence from Inpatient Rehabilitation Facilities
with Neeraj Sood, David C. Grabowski, Joseph P. Newhouse, José J. Escarce: w17125
We examine provider responses to the Medicare inpatient rehabilitation facility (IRF) prospective payment system (PPS), which simultaneously reduced marginal reimbursement and increased average reimbursement. IRFs could respond to the PPS by changing the total number of patients admitted, admitting different types of patients, or changing the intensity of care for admitted patients. We use Medicare claims data to separately estimate each type of provider response to the PPS. We also examine changes in patient outcomes and spillover effects on other post acute care providers. We find that costs of care initially fell following the PPS implementation, which we attribute to changes in treatment decisions rather than the types of patients admitted to IRFs. However, the probability of admission...

Published: Sood, Neeraj & Huckfeldt, Peter J. & Grabowski, David C. & Newhouse, Joseph P. & Escarce, José J., 2013. "The effect of prospective payment on admission and treatment policy: Evidence from inpatient rehabilitation facilities," Journal of Health Economics, Elsevier, vol. 32(5), pages 965-979. citation courtesy of

May 2011Pharmaceutical Use Following Generic Entry: Paying Less and Buying Less
with Christopher R. Knittel: w17046
We study the effects of generic entry on prices and utilization using both event study models that exploit the differential timing of generic entry across drug molecules and cast studies. Our analysis examines drugs treating hypertension, high blood pressure, type 2 diabetes, and depression using price and utilization data from the Medical Expenditure Panel Survey. We find that utilization of drug molecules starts decreasing in the two years prior to generic entry and continues to decrease in the years following generic entry, despite decreases in prices offered by generic versions of a drug. This decrease coincides with the market entry and increased utilization of branded reformulations of a drug going off patent. We show case study evidence that utilization patterns coincide with change...

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