William A. Jackson, MD Cardiology, Heart - Vascular. McLeod Cardiology Associates - Myrtle Beach 107 McLeod Health Boulevard Building 2, Suite 202 Myrtle Beach, South Carolina 29579. Phone: (843) 839-1201 Fax: (843) 839-1202. McLeod Cardiology Associates - Loris 3485 Mitchell Street Loris, South Carolina 29569. Phone: (843) 756-7029 Fax ....