The letter I received read from Doximity:

Hi Dr. Downey!

Congratulations on being named one of Consumers Checkbooks’ Top Doctors.

In recognition we’ve added this icon to your profile to reflect you’re respected standing among your physician colleague:

Nonprofit Consumers’ CHECKBOOK surveyed roughly 375,000 physicians to tell us which specialists they would want to care for a loved one. Consumers’ Checkbook is nonprofit & unbiased,
and accepts no advertising, which prevents ballot-box stuffing.

Top Doctors names over 24,000 doctors who were mentioned most often in over thirty-five specialties, which is the top 6.5%