Dr. James Gregory Thomas, MD
- Medicare services, 2024
- 1,748
- Medicare patients, 2024
- 271
- Part D claims, 2024
- 77
- Hospital affiliations
- 5
- Industry payments
- $13
- Practice address
- 9330 Medical Plaza Dr, Charleston, SC 29406
- Practice phone
- Call (843) 847-4100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Thomas' professional email, personal email and mobile number
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Dr. James Gregory Thomas is an infectious disease specialist in Charleston, South Carolina
Dr. Thomas practices at HCA Healthcare Trident Hospital in Charleston, South Carolina, part of HCA Healthcare.
Dr. Thomas' NPI, 1114923950, was assigned on June 27, 2005. Dr. Thomas holds South Carolina license 20983.
- NPI
- 1114923950NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486713120
- NPI enumeration date
- June 27, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (843) 847-4100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James Gregory Thomas practices at HCA Healthcare Trident Hospital in Charleston, South Carolina
Dr. Thomas' primary practice is HCA Healthcare Trident Hospital, at 9330 Medical Plaza Dr, Charleston, SC 29406 in Charleston County. The practice phone is (843) 847-4100.
- HCA Healthcare Trident Hospital9330 Medical Plaza Dr, Charleston, SC 29406 · Charleston CountyPhone(843) 847-4100
Source: Dmand AI Affiliation Data
Dr. James Gregory Thomas is affiliated with 8 sites of care and 4 medical groups
Dr. Thomas' primary practice is HCA Healthcare Trident Hospital in Charleston, South Carolina, part of HCA Healthcare. Dr. Thomas is also affiliated with MUSC Health University Medical Center. The medical group on file is SC House Calls. Dmand AI also links Dr. Thomas to 3 more hospitals, 3 medical groups, 2 group practices and clinics and 1 physician office, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James Gregory Thomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HCA Healthcare Trident Hospital | Available with a free account |
| +7 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Gregory Thomas is one of 99 infectious disease specialists in South Carolina
Infectious disease is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Thomas is licensed in South Carolina.
Specialties and state licenses
- Infectious disease, South CarolinaPrimary
Infectious disease specialists near Dr. Thomas
Counts of infectious disease specialists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. James Gregory Thomas billed Medicare for 1,748 services in 2024
CMS data shows 1,748 Medicare services from Dr. Thomas across 4 procedure codes in 2024, for 271 Medicare patients. Medicare paid $114,408 for them.
Dr. Thomas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,7852024: 1,7482%
Where Dr. Thomas' Medicare services took place, 2024
- In an office191%
- In a facility1,72999%
Dr. Thomas compared with the South Carolina median for infectious disease specialists, 2024
- Dr. Thomas
- South Carolina median
- Medicare services
- 1,748vs 2926.0 times
- Medicare patients
- 271vs 14192% above
- Part D claims
- 67vs 36181% below
Medians across 98 infectious disease specialists in South Carolina with Dmand AI profiles that report each measure.
Dr. Thomas' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Gregory Thomas treated 271 Medicare patients in 2024, average age 73
CMS counts 271 Medicare patients who saw Dr. Thomas in 2024. The largest group is 65 to 74, with 98 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 3.18, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 63, with 49% women.
Dr. Thomas' Medicare patients by age, 2024
Dr. Thomas' Medicare patients by sex, 2024
- Women12948%
- Men14252%
Chronic conditions among Dr. Thomas' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease55%
- Diabetes54%
- Arthritis51%
- Atrial fibrillation47%
- Heart failure46%
- Anxiety45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Thomas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James Gregory Thomas wrote 77 Medicare Part D claims in 2024
In 2024, Dr. Thomas wrote 77 Medicare Part D claims for 21 patients. 99% of them were for generic drugs. CMS names the drug for 67 of them, across 4 drugs with 11 or more claims each, at $7,954 in total drug cost. In 2023, CMS named 116 claims across 4 drugs.
Dr. Thomas' Part D claims by kind of drug, 2024
- Generic76 claims99%
- Brand-name and other1 claims1%
Dr. Thomas' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Thomas' Part D claims, 2024
- Antibiotics99%76 of 77 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1162024: 6742%
Drugs named by CMS: 4 in 2024, 4 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. James Gregory Thomas offers telehealth to Medicare patients
Dr. Thomas accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Thomas as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. James Gregory Thomas received $13 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Thomas from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $13.
Companies that paid Dr. Thomas the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. James Gregory Thomas's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. James Gregory Thomas
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. James Gregory Thomas' NPI number?
Dr. James Gregory Thomas' NPI number is 1114923950. It was assigned on June 27, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. James Gregory Thomas?
Dr. James Gregory Thomas is an infectious disease specialist in Charleston, South Carolina. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. James Gregory Thomas practice?
Dr. Thomas practices at 9330 Medical Plaza Dr, Charleston, SC 29406. Dr. Thomas' primary practice is HCA Healthcare Trident Hospital in Charleston, South Carolina, part of HCA Healthcare. Dmand AI also links Dr. Thomas to 3 hospitals, 3 medical groups, 2 group practices and clinics and 1 physician office.
What is Dr. James Gregory Thomas' office phone number?
The practice phone on file for Dr. Thomas is (843) 847-4100.
What is Dr. James Gregory Thomas' medical license number?
Dr. Thomas holds South Carolina license 20983.
Which hospitals is Dr. James Gregory Thomas affiliated with?
Dr. Thomas practices at HCA Healthcare Trident Hospital in Charleston, South Carolina. Dr. Thomas is also affiliated with MUSC Health University Medical Center. Dmand AI links Dr. Thomas to 3 more hospitals.
What medical group is Dr. James Gregory Thomas part of?
Dr. Thomas is linked to SC House Calls. Dmand AI links Dr. Thomas to 3 more medical groups.
Does Dr. James Gregory Thomas accept Medicare?
Yes. CMS data shows Dr. Thomas billed Medicare for 1,748 services in 2024, and Dr. Thomas accepts Medicare assignment.
Does Dr. James Gregory Thomas offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Thomas as offering telehealth services.
How many Medicare patients does Dr. James Gregory Thomas see?
CMS counts 271 Medicare patients who saw Dr. Thomas in 2024, with an average age of 73.
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What services does Dr. James Gregory Thomas bill to Medicare?
In 2024, Dr. Thomas' most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99222).
What drugs does Dr. James Gregory Thomas prescribe most?
In 2024 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Ceftriaxone, Cefazolin Sodium and Vancomycin HCl.
Has Dr. James Gregory Thomas received payments from drug or device companies?
CMS Open Payments shows $13 in general payments to Dr. Thomas from 1 company from 2016 to 2016. The largest total came from Novo Nordisk Inc.
How long has Dr. James Gregory Thomas been practicing?
Dr. Thomas graduated from medical school in 1990, 36 years ago.
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