Doctor’s Time Travel To Joseon is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

This is Joseon?! But I still have to save people! Baek Kang-hyuk, the best genius surgeon in South Korea. After touching a mysterious painting, he falls into Joseon. And of all times… right before the outbreak of the Japanese invasions of Korea!