Patient-Reported Outcomes Measurement Information System (PROMIS) via HealthMeasures
(http://www.healthmeasures.net)
This website is a measurement resource developed by the National Institutes of Health (NIH) and run by the US Department of Health and Human Services includes a large set of person-centered questionnaires that have been validated to measure the physical, social, and mental health of individuals and is universally applicable across populations. They are free to use. Permission must be requested to reprint a measure.

Mayo Well-Being Index
(https://www.mededwebs.com/well-being-index)
Measures distress and well-being via a short 9-question assessment developed at Mayo Clinic, specifically for healthcare professionals. Free for use for research purposes as well as quality improvement efforts by nonprofit organizations. Must request access and permission to use the tool.

Stanford Professional Fulfillment Index
Trockel, M., Bohman, B., Lesure, E. et al. A Brief Instrument to Assess Both Burnout and Professional Fulfillment in Physicians: Reliability and Validity, Including Correlation with Self-Reported Medical Errors, in a Sample of Resident and Practicing Physicians. Acad Psychiatry 42, 11–24 (2018).
https://doi.org/10.1007/s40596-017-0849-3
A 16-question assessment to assess physician burnout and professional fulfillment using Likert scales. Can be used for no cost by nonprofit organizations using it for research or quality improvement. Contact Stanford Risk Authority at wellness.surveyteam@TheRiskAuthority.com for permission.