Pearl River County Project Prints Early Intervention Program--birth to 3 yrs old 801 Williams Ave. Picayune,Ms. 601-798-7132 Mississippi Dept of Mental Health Picayune Indusries 1401 Sixth Ave. Picayune,Ms. 601-798-8859 River County Enterprises 530 Hwy 26 E. Poplarville,Ms. 601-795-4099 Hattiesburg Area Ms Comm. Of Mental Health and Mental Retardation Programs 1507 Hardy St. 601-583-6040 District Health Office Infant/Toddler Program 1402 Corinne St. 601-544-7967 Ms Medicaid Regional Office 1520 Adeline St. 601-545-1171 Ms Special Olympics 202 N 33rd Ave. 601-264-7295 601-264-7296 601-264-7326 Graphics provided by: