1Columbia University Mailman School of Public Health, New York, NY, USA.
2Multicampus Program in Geriatric Medicine and Gerontology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
3Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
4VA Greater Los Angeles Health System, Los Angeles, CA, USA.
5Department of Health Care Policy, Harvard Medical School, Boston, MA, USA.
6Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
7RAND, Santa Monica, CA, USA.
8Doximity, San Francisco, CA, USA.
9Division of General Internal Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
10Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA. ytsugawa@mednet.ucla.edu.
11Department of Health Policy and Management, UCLA Fielding School of Public Health, Los Angeles, CA, 90024, USA. ytsugawa@mednet.ucla.edu.