Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. James Gregory Thomas, MD

Individual provider Infectious Disease Physician · NPI 1114923950

Dr. James Gregory Thomas, MD practises Internal Medicine in Charleston, South Carolina. Qualified in 1990, 36 years ago. Practices with SC House Calls Inc, a 446-clinician group, accepts Medicare assignment and offers telehealth. Licensed in South Carolina.

Years since qualifying
36
Licensed in
SC
In the registry since
2005
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 17 years — call before visiting
Phone: (843) 724-2450
Fax: (843) 724-2455
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 20983 (SC)

Record details

NPI number1114923950
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2005
Last updated in NPPESMay 27, 2009

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesINFECTIOUS DISEASE
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Sc House Calls Inc — 446 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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 patients271
Services billed 1,830 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 SC House Calls Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 446 clinicians in the practice; 12 are shown here.

Other providers in Charleston