Run a free full auditDavid Gregg, IV, MD is a cardiologist in Charleston, SC. A specialist in congenital cardiology, Dr. Gregg provides in- and outpatient consultation and coordinates comprehensive care for patients with adult congenital heart disease. His practice also includes a particular interest in valvular heart disease and non-invasive imaging.
Dr. Gregg completed his medical school education at the Columbia University College of Physicians and Surgeons in New York. He performed his residency in internal medicine at Duke University Medical Center, where he received additional training in cell biology and cardiovascular genomics. Following fellowship training in cardiology at the University of California-San Francisco, with a subspecialty focus on adult congenital heart disease, he returned to the Medical University of SC. In 2006, he founded the adult congenital heart disease program in collaboration with pediatric cardiology and currently serves as its director. He is board certified in internal medicine, cardiovascular disease, and adult congenital heart disease.
The practice is located on Courtenay Drive, situated near the Charleston Medical District's Greenway and a short distance from Roper Hospital. The location is also close to the James Island Expressway and the Jonathan Lucas House Marker.
Dr. Gregg is recognized for providing thorough and well-documented care to his patients. His expertise in complex areas such as atrioventricular septal defects and patent foramen ovale makes him a vital resource for specialized cardiac needs in the region.
As a specialist in congenital cardiology, Dr. Gregg provides essential cardiovascular expertise to the Charleston community.
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BizScoreAI scanned the website getcare.muschealth.org on September 21, 2026. David Gregg, IV, MD has a BizScore of 75 out of 100.
AI visibility scan by category: AI Discovery 25 of 25 points, Structured Data 8 of 25 points, Content Readiness 21 of 30 points, AI Trust Signals 14 of 20 points.
Website audit sub-scores (out of 100): On-Page 91, Technical 91, Performance 75, Content 55.
Strengths: 12 checks passed. llms.txt, AI Crawler Access, AI Content Blocking, Organization Schema, Google Business Profile Link, LocalBusiness Schema, Hyperlocal Targeting, Q&A Content, AI-Parseable Headings, Meta Description, About/Team Page, Author Signals.
Areas to improve: 5 checks. FAQPage Schema (failed), Third-Party Review Links (failed), Speakable Schema (warning), Local Multimedia (warning), XML Sitemap (warning).
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