 Van Hoogstraten was appointed by the Philharmonic Society to serve as director of the orchestra between Josef Stransky and Willem Mengelberg, serving half of the orchestra's season until Mengelberg was available.After the untimely death of Theodore Spiering in 1925, Van Hoogstraten was appointed music director of the Oregon Symphony, where he served for thirteen seasons.From 1939 to 1945, he was permanent conductor of the Mozarteum Salzburg.