Yes and no! Of course going to church doesn't make you a Christian any more than walking into a garage makes you a car. Yet just a car will not continue running unless it is regularly serviced, the Christian goes to church recognizing that they are in need of the support of God’s family if they are to continue in their faith. Church is not necessary for becoming a Christian, but it is necessary if you are to keep going and growing as a Christian.
(Hebrews 10:24-25)