--- title: "Nephrologist" slug: "ckd-key-concepts-nephrologist" updated: 2023-05-16T21:47:30Z published: 2023-05-16T21:47:30Z canonical: "docs.ursahealth.com/ckd-key-concepts-nephrologist" stale: true --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.ursahealth.com/llms.txt > Use this file to discover all available pages before exploring further. # Nephrologist ## **Definition** A physician specializing in nephrology, identified by the presence of a qualifying primary NUCC provider taxonomy code. ## **Purpose** Used in the URSA-CKD module to identify clinician office visits with nephrology providers, of which nephrologists are a subset. ## **Related objects** - [**Providers**](https://docs.ursahealth.com/docs/core-objects-providers) - [**Nephrologists and Nephrology Group Providers**](/v1/docs/ckd-objects-nephrologists-and-nephrology-group-providers) - [**Clinician Office Visits with Nephrology Provider**](/v1/docs/ckd-objects-clinician-office-visit-with-nephrology-provider) - [**Patient Timelines of Empirical Attribution to Nephrology Provider**](/v1/docs/ckd-objects-patient-timelines-master-for-ursa-ckd-concepts) ## **Detailed narrative of logic** 1. As implemented in **Nephrologists and Nephrology Group Providers**, providers in **Providers**— which includes both individual and organizational providers — are included if they have a qualifying primary NUCC provider taxonomy code (see value set NEPHROLOGY SPECIALTY) or if the provider description includes the words “nephrology” or “nephrologist.” 2. Records in **Nephrologists and Nephrology Group Providers** associated with individual nephrologists have the field Is Individual Provider = 1.