At age seven, Katia joined the Central School for gifted children. Later she entered the Tchaïkovski Superior Conservatory in Moscow, attending the classes of Tatiana Nicolayeva and Dimitri Bashkirov. She obtained the diplomas of concert pianist, piano teacher and accompanist with the qualification of excellence in the three disciplines.

She made her debut at the age of eleven in the great hall of the Tchaikovsky Conservatory by interpreting Schumann’s Abegg variations. It is in this same place that she will be invited to participate in the celebrations of the 150th anniversary of the birth of Tchaikovsky, a concert recorded by Soviet television. During her studies, Katia gave many concerts in the big Russian cities. She performs in particular the Beethoven Concerto No. 1 in C major with the Saratov Philharmonic Orchestra at the age of twelve.

After finishing her studies in Moscow, she settled in Paris and continued to train with Léon Fleisher, Jean-François Heisser and Gérard Mounier. She worked as an artistic assistant to Christiane Stutzmann, in her class of Lied and Opera at the CRR of Nancy. She then moved to Germany as a full-time assistant at the Folkwanghochschule (Universität der Künste in Essen). From then on, France, Germany and Russia constituted the heart of her artistic activity. She regularly worked as a specialized artistic assistant at the RRCs in Paris and Toulouse.

In Germany, Katia Nemirovich-Dantchenko performs in Mainz, Hamburg, Berlin, Dresden, Braunschweig and the Gewandhaus in Leipzig, as well as with orchestras such as the Mainzer Kammerorchester and the Staatsorchester Braunschweig. She has performed solo and chamber music in Belgium, Italy, Greece, Switzerland, Spain, Egypt, Luxembourg, Madagascar and the United States, and collaborates with artists such as Aleksander Markov, Julia Fischer and Franck-Mikael Erben, Inglor Turban, Young Chang Cho, Aleksander Trostiansky, Sacha Rojdestvensky, Valery Oistrakh, Jane Peters, Viorica Cortez, Irina Medvedeva, Clara Cernat, Magali Mosnier and Svetlin Roussew.

Katia Nemirovich-Dantchenko has been teaching piano at the Geneva Conservatory since September 2019.