Contact Sullivan Sinus & Allergy Please call us with any questions you might have. If you need detailed directions, see the link below. Walk-in Allergy Injection Hours:Mon 8:00 – 4:30PMTues-Wed – 8:00 – 3:30PMThurs 8:00 – 4:30PMFri – 8:00 – 12:30PM Directions Office Location 930S Harbor City Blvd., Suite 200 Melbourne, FL 32901 Phone (321) 674-9094 Fax: (321) 674-9289 Make An Appointment