The supply, distribution, specialty mix, and other characteristics of the nearly 900,000 professionally-active U.S. physicians

Physician-Industry Interactions: Persuasion and Welfare

Aug. 2, 2018

Matthew Grennan, Kyle Myers, Ashley Swanson, Aaron Chatterji


In markets where consumers seek expert advice regarding purchases, firms seek to influence experts, raising concerns about biased advice. Assessing firm-expert interactions requires identifying their causal impact on demand, amidst frictions like market power. We study pharmaceutical firms' payments to physicians, leveraging instrumental variables based on regional spillovers from hospitals' conflict-of-interest policies and market shocks due to patent expiration. We find that the average payment increases prescribing of the focal drug by 73 percent. Our...

Factors Associated With Pediatrician Responses to Alternative Immunization Schedule Requests

Jul. 24, 2018

Abstract [from journal]

We conducted a cross-sectional online survey among 4 chapters of the American Academy of Pediatrics from July through October 2014 to describe characteristics of pediatricians and practices associated with practice-level responses to alternative immunization schedule requests. Among 374 pediatricians, 58% reported frequent alternative immunization schedule requests and 24% reported feeling comfortable using them. Pediatricians who work in practices that accommodate alternative immunization schedule requests have increased odds of having a


Physician Perspectives In Year 1 Of MACRA And Its Merit-Based Payment System: A National Survey

Jul. 11, 2018

ABSTRACT [from journal]

We surveyed a national sample of internal medicine physicians in March–May 2017 to explore their beliefs about the newly implemented Merit-based Incentive Payment System (MIPS). Respondents believed that their efforts in the four focus areas identified in the survey would ultimately improve the value of care. When informed that those areas represented the four MIPS domains, the majority remained positive about the likely impact on value. However, expectations varied by physicians’ characteristics and sense of control over the desired outcomes, and many...

Physician Practice Variation Under Orthopedic Bundled Payment

Jun. 20, 2018

Joshua M. Liao, Ezekiel J. Emanuel,  Gary L. Whittington,  Dylan S. Small...


Objectives: To describe the extent of and longitudinal changes in physician practice variation with respect to implant costs, institutional postacute care (PAC) provider utilization, and total episode payments, as well as to evaluate the association between physician volume and quality and these outcomes.

Study Design: Observational study.

Methods: We combined claims and internal hospital cost data for 34 physicians responsible for 3614 joint replacement episodes under bundled payment at...

Yelp Reviews and Opioids

Apr. 10, 2018

Researchers are discovering that social media offers a window into the lived experience of patients and their caregivers. Using Yelp reviews about US hospitals, our team at Penn’s Center for Health Care Innovation attempted to give voice to these experiences related to pain management and opioids during recent hospital visits.

Moving Beyond Duty-Hours

Apr. 2, 2018

If you want to start an intense debate within the medical community, just talk about duty-hours – the length of a physician-in-training’s shift.

Education Outcomes in a Duty-Hour Flexibility Trial in Internal Medicine

Mar. 21, 2018

Sanjay V. Desai, David A. Asch, Lisa M. Bellini, Krisda H. Chaiyachati, Manqing Liu, Alice L. Sternberg, James Tonascia, Alyssa...

Abstract [from journal]

Concern persists that inflexible duty-hour rules in medical residency programs may adversely affect the training of physicians.

We randomly assigned 63 internal medicine residency programs in the United States to be governed by standard duty-hour policies of the 2011 Accreditation Council for Graduate Medical Education (ACGME) or by more flexible policies that did not specify limits on shift length or mandatory time off...