Categories starting with the letter O

• 679: Obstetricians : See Medical Care in Northport, NY (by Specialty Starting With M-p) (29)
• 682: Office Buildings and Centers (named And/or Famous) in Northport, NY (4)
• 3127: Office Cleaning Services in Northport, NY (4)
• 680: Office Equipment in Northport, NY (1)
  • 5245: Office Equipment Retail Stores in Northport, NY (3)
• 683: Office Furniture in Northport, NY
  • 3824: Office Furniture Stores (4)
• 685: Office Supplies: See Office Equipment in Northport, NY (4)
• 5042: Oil Suppliers (home Heating Oil, Fuel Oil) in Northport, NY (11)
• 4587: Older Adults : See Senior Citizens in Northport, NY (5)
• 3828: Online Services: See Internet Services in Northport, NY (2)
• 689: Optical Equipment (binoculars, Microscopes, Telescopes) in Northport, NY (1)
• 688: Opticians and Optometrists in Northport, NY
  • 3829: Optical Chain Stores (4)
  • 1902: Opticians, Full Service (eye Exam, Contact Lenses, Glasses) (9)
• 690: Orchestras, Chamber Groups, Choral Groups in Northport, NY (1)
• 386: Organic and Natural Food Stores in Northport, NY (2)
• 6549: Outdoor Play Equipment in Northport, NY (3)