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William C. Smith, M.D.


  • Undergraduate: B.S., Louisiana Tech University
  • Medical School: Louisiana State University School of Medicine
  • Residency: Internal Medicine-Louisiana State University Medical Center
  • Fellowship: Cardiology- Louisiana State University Medical Center
  • Board Certification: American Board of Internal Medicine
  • Professional Affiliations: Diplomate- American College of Cardiology


”I enjoy getting to know my patients and their families, earning their trust, and providing them with state of the art cardiology in their own backyard.”

Medical Interests

Dr. Smith enjoys working with cardiac patients, many of whom he feels can improve significantly if given the best treatment. He also enjoys working with his family in a medical practice and continuing the medical service his father and grandfather started in Lincoln Parish and the surrounding areas.

Green Clinic has a busy cardiology practice that offers everything from non-invasive evaluations, which include caths and stints, to invasive evaluations with pacemakers. They also perform nuclear stress, echocardiogram, and treadmill testing. Dr. Smith is currently accepting new patients.


Dr. Smith is a  lifelong LSU Tiger fan!


Main Clinic
1200 South Farmerville Street
Ruston, Louisiana