Risk Management Operations, MPN Share Print The city of Carson's MPN(Medical Provider Network): Harbor One MPN www.harborsys.com/HarborOne For employees injured on the job to get timely medical treatment, Please contact Harbor One MPN for information regarding the Medical Provider Network (MPN), to report provider listing inaccuracies, assistance with finding available MPN physicians, or with scheduling provider appointments Contact Medical Access Assistant (MAA): Toll-free 855-900-6761 Fax Number: (703) 673-0181 E-mail: MPNMAA@harborsys.com
701 E Carson Street