The pop icon, who had previously announced dates for January 26, 27, 29, 30 and February 1-2, will now also perform on February 4-6, 8-9 & 11 due to "overwhelming" Verified Fan registrations.
Verified Fans code holders may now choose from a total of 12 performances.
Launching on September 12 at the BAM Howard Gilman Opera House in New York, the Madame X tour will feature multiple nights at theatres in Chicago, Los Angeles, Las Vega, Boston, Philadelphia and Miami this year.
The Madame X Tour will resume in early 2020 with performances at the Coliseum in Lisbon and at the Grand Rex in Paris, along with the Palladium shows. The tour is presented by Live Nation Global Touring. The Madame X album is released on June 14, following a run of five single releases.
Madonna's appearance at the Eurovision Song Contest in Israel on Saturday drew a mixed response from viewers. The singer performed her 1989 hit Like A Prayer and new single Future, which features US rapper Quavo.