As of 2018, this is the list of contactable MOHLTC Claims Service offices:
Toronto
5700 Yonge Street,
5th Floor,
North York, Ontario
M2M 4K5
Phone: (416) 314-7770
Fax: (416) 314-7518
Hamilton
119 King Street W, 10th Floor
Hamilton ON
L8P 4Y7
Phone: (905) 521-7547
Fax: (905) 546-8287
Oshawa
419 King St. West
Oshawa ON
L1J 7J2
Phone: 1-855-250-3696
Fax: (905) 434-4186