Los Angeles anesthesiologist Marilyn Singleton was outraged about a California requirement that every continuing medical education course include training in implicit bias — the ways in which physicians’ unconscious attitudes might contribute to racial and ethnic disparities in health care. Singleton, who is Black and has practiced for 50 years, sees calling doctors out for implicit bias as divisive, and argues the state cannot legally require her to teach the idea in her continuing education classes. She has sued the Medical Board of California, asserting a constitutional right not to teach something she doesn’t believe.

The way to address health care disparities is to target low-income people for better access to care, rather than “shaking your finger” at white doctors and crying “racist,” she said. “I find it an insult to my colleagues to imply that they won’t be a good doctor if a racially divergent patient is in front of them.”

The litigation is part of a national crusade by right-leaning advocacy and legal groups against diversity, equity, and inclusion, or DEI, initiatives in health care. The pushback is inspired in part by last year’s U.S. Supreme Court ruling barring affirmative action in higher education.