Grey's Anatomy is an American medical drama

Medical drama

A medical drama is a television program, in which events center upon a hospital, an ambulance staff, or any medical environment.In the United States, most medical episodes are one hour long and, more often than not, are set in a hospital. Most current medical Dramatic programming go beyond the...

 television series created by Shonda Rhimes

Shonda Rhimes

Shonda Rhimes is an American screenwriter, director and producer. Rhimes is best known as the creator, head writer, and executive producer of acclaimed television series Grey's Anatomy and its spin-off Private Practice. In May 2007, Rhimes was named one of Time magazine's 100 Time 100 people who...

. The series premiered on March 27, 2005 on ABC

American Broadcasting Company

The American Broadcasting Company is an American commercial broadcasting television network. Created in 1943 from the former NBC Blue radio network, ABC is owned by The Walt Disney Company and is part of Disney-ABC Television Group. Its first broadcast on television was in 1948...

; since then, seven seasons have aired. The series follows the lives of interns, residents

Residency (medicine)

Residency is a stage of graduate medical training. A resident physician or resident is a person who has received a medical degree , Podiatric degree , Dental Degree and who practices...

 and their mentors in the fictional Seattle Grace Mercy West Hospital in Seattle, as they struggle to complete their medical training and maintain personal lives. Despite being set in Seattle, the show is primarily filmed in Los Angeles

Los Ángeles

Los Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...

, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

.

A spin-off show, titled Private Practice, revolving around character Addison Montgomery

Addison Montgomery

Addison Adrienne Forbes Montgomery , was a fictional character on the ABC television series Grey's Anatomy, and is currently starring on its spin-off show Private Practice. Addison is a world-class neonatal surgeon with board certifications in both Obstetrics and Gynaecology and Maternal and Fetal...

 (Kate Walsh), began airing on September 27, 2007.