Dr. Brandon Slagley, MD is a board certified family physician in Greenville, Alabama. ... Search all U.S. specialist profiles and refer a patient; Read the latest clinical news and earn CME/CEU credits ... Suite 2 Greenville, AL 36037. Phone (334) 382-1632. Fax (334) 382-1634. Is this information wrong? Education & Training. Medical Center East ....