Born in Larissa in 1972 and whose parents are farmers, he is married to Helen Mocha and has a son, Constantinos Kokkalis. He is an Attorney at the Supreme Court of the Graduate Faculty of the Aristotle University of Thessaloniki. During his schooling, he was a member of the Rector's Council as a representative of the students.

Between 1998 and today, he carries active practice in the Court of Larissa. Since 2005 he has been actively engaged in the consumer movement and  was elected twice President of the Consumers Institute (IN.KA) of Thessaly. In 2006 he was elected Municipal Councilor reconciling ‘Larisa-City of Tomorrow’ while elected to the Board of Directors of Hellenic Food Authority (E.F.E.T) as a representative of all the consumer organizations in Greece. In 2008 he was elected Vice President of the National Council of Consumer and Market (ESKA), institution that introduces the consumer and market policy to each Minister of Development.

He has participated as a representative of consumer organizations in 2008 and 2009 to the Standing Committee on Commerce of the Greek Parliament, on bills concerning the consumer (unfair practices and collection agencies, unfair terms of Banking contracts, consolidation of the insurance market, etc.). Many of the proposals of IN.KA Thessaly became laws of the state.

From 2010 until today systematically and actively he supports the consumer-borrower with the Law on "indebted households." He was first elected Member of the Greek Parliament in January 2015 and re-elected in the next election in September 2015. Since November 2016, he has been the Deputy Minister of Rural Development and Food.