James Gregory Thomas, MD
Infectious Disease Physician · Charleston, SC
James Gregory Thomas, MD is an infectious disease physician with a practice address in Charleston, South Carolina, and NPI 1114923950, issued on Jun 27, 2005. Check the license (South Carolina 20983, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- James Gregory Thomas
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 20983 SC
Self-reported in NPPES; status is on the state search - Practice location
- 316 Calhoun St, Charleston, SC 29401
- Phone
- (843) 724-2450
- Enumerated
- Jun 27, 2005
- Record last updated
- May 27, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (843) 724-2455
- Medicaid ID
- T53670 SC
- Medicare enrollment
- Enrolled (PECOS I20081110000463); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 119 in South Carolina → Look up another NPI →
Also registered at 316 Calhoun St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Taylor AdamPhysician Assistant1902576929
- Mary Ann Adiong, RNRegistered Nurse1396694287
- Elizabeth Alvarez, NPCritical Care Medicine Nurse Practitioner1295288421
- Andrew Anderson, M.D.Diagnostic Radiology Physician1073729711
- Selena Anderson, FNPFamily Nurse Practitioner1346737673
- Claire Andrew, MS, RDRegistered Dietitian1134970049
Verify James Gregory Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 20983Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average infectious disease physician in 2024
77 Medicare Part D claims for 21 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.
Most prescribed
- Ceftriaxone22 claims
- Cefazolin Sodium18 claims
- Vancomycin Hcl15 claims
- Cefepime Hcl12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Lowcountry Infectious Diseases PACharleston, SC
- SC House Calls IncWest Columbia, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Gregory Thomas among 119 infectious disease physician records in South Carolina
James Gregory Thomas, MD is one of 119 infectious disease physician records with a practice address in South Carolina. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1990 · median 2005 among the 89 with a school on file
- Record last updated2009 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in South Carolina
There are 119 infectious disease physician records in South Carolina.
All 119 in South Carolina → Every provider in Charleston → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Ruth Adekunle, M.D.Charleston, SC 294011366784530
- Robert Ball, MD MPH FACPNorth Charleston, SC 294051710276340
- Adero Francis, MDCharleston, SC 294071184187205
- Toby Fugate, D.O.Charleston, SC 294071295870186
- Archibald Hampton, MDCharleston, SC 294071831291327
- Katherine Minnick, MDCharleston, SC 294071649276502
- Joseph John, M.D.Charleston, SC 294141598866592
- Ludwig Lettau, M.D.Charleston, SC 294141780674556
Common questions
What is James Gregory Thomas, MD's NPI number?
James Gregory Thomas, MD's National Provider Identifier (NPI) is 1114923950, issued on Jun 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Gregory Thomas, MD located?
The NPPES record lists a practice address at 316 Calhoun St, Charleston, SC, 29401. Phone: (843) 724-2450. Providers update this record themselves, so call before visiting.
How can I verify James Gregory Thomas, MD's license?
NPPES lists South Carolina license number 20983, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Gregory Thomas, MD prescribe under Medicare Part D?
In 2024, James Gregory Thomas, MD had 77 Medicare Part D claims for 21 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.