631.761.7600 (Phone)
631.761.7611 (Fax)

helpdesk@msedp.com (Email)

Reception
8:30am - 5:30pm EST
Monday thru Friday

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Directions
Long Island Expressway Exit 52 (Commack Road) South. Procede south on Commack Road for approximately 2 miles. Make a left onto Grand Boulevard (7-11 on the corner). MSEDP is on the right, in between 7-11 and Popei's Restaurant and across the street from Ruby Tuesdays. There is parking available in the rear.

Take Southern State Parkway. Merge onto Deer Park Avenue/ NY-231 N via exit number 39N toward Deer Park. Turn slight right onto Commack Road. Go approximately 3 traffic lights to Grand Boulevard (1.37 miles). Turn Right onto Grand Boulevard. 2nd building on right (0.11 miles).