Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Stephen Alan Bagg, MD

Individual provider Diagnostic Radiology Physician · NPI 1912103722

Stephen Alan Bagg, MD practises Diagnostic Radiology in Charleston, South Carolina. Graduated from Medical University of South Carolina College of Medicine in 2007, 19 years ago. Practices with Roper Radiologists PA, a 40-clinician group and accepts Medicare assignment. Licensed in North Carolina and South Carolina.

Years since qualifying
19
Trained at
Medical University of South Carolina College of Medicine
Licensed in
NC, 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

316 Calhoun St
Charleston, SC 29401-1113 Not confirmed with CMS for 12 years — call before visiting
Phone: (843) 724-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence LL29784 (SC)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 200901462 (NC)

Record details

NPI number1912103722
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2007
Last updated in NPPESFebruary 13, 2014

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolMEDICAL UNIVERSITY OF SOUTH CAROLINA COLLEGE OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Roper Radiologists Pa — 40 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients3,685
Services billed 4,813 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Roper Radiologists PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 40 clinicians in the practice; 12 are shown here.

Other providers in Charleston