High-Volume Prescribers and Medicare Prescriptions of Opioids | Substance Use and Addictive Disorders | JAMA Internal Medicine | The JAMA Network

Who prescribes the most opiods?  Several surprises from this study from the Journal of the American Medical Association

Distribution of Opioids by Different Types of Medicare Prescribers

Jonathan H. Chen, MD, PhD^1,2; Keith Humphreys, PhD^1,2,3; Nigam H. Shah, MBBS, PhD⁴; et alAnna Lembke, MD³

Author Affiliations Article Information

JAMA Intern Med. 2016;176(2):259-261. doi:10.1001/jamainternmed.2015.6662

Researchers have suggested that the opioid overdose epidemic¹ is primarily driven by small groups of prolific prescribers and “corrupt pill mills.”^2,3 For example, the California Workers’ Compensation Institute found that 1% of prescribers accounted for one-third of schedule II opioid prescriptions and 10% accounted for 80% of prescriptions.⁴ This propagates a message that opioid overprescribing is a problem of a small group of high-volume prescribers, while general use is likely safe and effective. Medicare data provide the opportunity to address the question of whether such prescribing patterns occur across a national population.

Opioid prescriptions are concentrated in specialty services in pain, anesthesia, and physical medicine and rehabilitation. By sheer volume however, total prescriptions are dominated by general practitioners (family practice, internal medicine, nurse practitioners, and physician assistants).

Contrary to the California Worker’s Compensation data showing a small subset of prescribers accounting for a disproportionately large percentage of opioid prescribing, Medicare opioid prescribing is distributed across many prescribers and is, if anything, less skewed than all drug prescribing. The trends hold up across state lines, with negligible geographic variability. Figure 2 does show greater skewing for total drug costs of Medicare opioid claims, with 78% accounted for by 10% of prescribers. This could be selection of more expensive formulations or higher doses prescribed.

The distribution of any social phenomena has some degree of skewing similar to an “80/20 rule” (eg, 20% of the population controls 80% of the wealth).⁶ As of 2013, however, these data argue that opioid prescribing is no more skewed than other prescribing, reflecting a widespread practice relatively indifferent to individual physicians, specialty or region. High-volume prescribers are not alone responsible for the high national volume of opioid prescriptions. Efforts to curtail national opioid overprescribing must address a broad swath of prescribers to be effective.

High-Volume Prescribers and Medicare Prescriptions of Opioids | Substance Use and Addictive Disorders | JAMA Internal Medicine | The JAMA Network

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