From NY Song Lines:
Mother's, a one-time gay bar that was an early punk venue from 1974-75--Ramones, Blondie, Talking Heads, Television, Heartbreakers etc. played there.
From Rock and Roll Explorer Guide to New York City:
"Blondie played Mothers several times in 1975, opening three nights for the Fast in September and returning the following month for a three-night stint supporting the Ramones."