John Lloyd Adams, PhD


Dr. John Lloyd Adams, Fellow of the American Statistical Association, brings an understanding of statistics and how they can provide insights in medical data to Kaiser Permanente School of Medicine. Dr. Adams has previously instructed on statistics as well as data collection, analysis, and presentation; in addition, he has served as a referee for various journals related to statistics and medical care. His work links economic and social issues to population health, allowing the quality of healthcare to be measured and quantified within different circumstances and populations.

Education and Training

  • BS, University of Minnesota
  • MS, University of Minnesota
  • PhD, University of Minnesota


Selected Prior Positions

1990-2012 Senior Statistician
1993-2000 Head, Statistical Consulting Service
RAND Statistics Group
1994-1997 Adjunct Assistant Professor
University of Southern California School of Business
2012-2017 Principal Senior Statistician
Kaiser Permanente Center for Effectiveness and Safety Research
2016-2017 Senior Director
Center for Effectiveness and Safety Analytics


Selected Honors and Awards

1980 Tau Beta Pi
Engineering Honor Society, University of Minnesota
1980 Sigma Pi Sigma
Physics Honor Society, University of Minnesota
2003 Article of the Year Award
Academy Health
2007 Fellow
American Statistical Association
2008 Article of the Year in Health Services Research
Eisenberg Award

Selected Publications

Peer-reviewed research manuscripts

  • Paddock SM, Adams JL, Hoces de la Guardia F. Better-than-average and worse-than-average hospitals may not significantly differ from average hospitals: an analysis of Medicare Hospital Compare ratings. BMJ Qual Saf. 2015 Feb;24(2):128-34.
  • Weech-Maldonado R, Elliott MN, Adams JL, Haviland AM, Klein DJ, Hambarsoomian K, Edwards C, Dembosky JW, Gaillot S. Do Racial/Ethnic Disparities in Quality and Patient Experience within Medicare Plans Generalize across Measures and Racial/Ethnic Groups? Health Serv Res. 2015 Mar 11. [Epub ahead of print]
  • Pollack CE, Rastegar A, Keating NL, Adams JL, Pisu M, Kahn KL. Is Self-Referral Associated with Higher Quality Care? Health Serv Res. 2015 Mar 11. [Epub ahead of print]
  • Anstey MH, Adams JL, McGlynn EA. Perceptions of the appropriateness of care in California adult intensive care units. Crit Care. 2015 Feb 25;19(1):51.
  • Adams JL, Paddock SM. Misclassification Risk of Tier-Based Physician Quality Performance Systems. Health Serv Res 2016. doi:10.1111/1475-6773.12561