How listings work

Where listings come from

Organic listings come from the National Plan and Provider Enumeration System (NPPES), the public NPI Registry run by the Centers for Medicare & Medicaid Services. We include providers whose primary specialty matches this site and whose practice-location address is in the city. We refresh the data regularly; providers update their own NPPES records.

How the order works

Organic listings are alphabetical. We do not rate or rank providers, and no one can pay to move up the organic list.

Sponsored placements

A sponsored practice pays a flat monthly fee to appear above the listings on specific pages. Sponsored cards are always labeled "Sponsored". Fees never depend on patients, calls, leads or appointments.

Axis Pain & Anesthesia Group appears as the featured sponsor on Southern California pages. Axis is a client of Shak Web Group, which publishes doctorstrend.com.

Population and local facts

Populations are U.S. Census Bureau Vintage 2023 estimates; locations come from the 2023 Census Gazetteer.

Corrections

Providers can correct their details in NPPES. For anything else, email [email protected].