Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William F. Marsteller IV, MD

Individual provider Gastroenterology Physician · NPI 1992917504

William F. Marsteller IV, MD is a Gastroenterology in Charleston, South Carolina. Graduated from Ohio State University College of Medicine in 2006, 20 years ago. Practices with Charleston Gastroenterology Specialists, a 49-clinician group and accepts Medicare assignment. Licensed in South Carolina.

Years since qualifying
20
Trained at
Ohio State University College of Medicine
Licensed in
SC
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1962 Charlie Hall Blvd
Charleston, SC 29414
Phone: (843) 722-8000
Fax: (843) 647-6066
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 32824 (SC)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1992917504
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 4, 2007
Last updated in NPPESMay 7, 2020
Certification dateMay 7, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Charleston Gastroenterology Specialists — 49 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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