Thomas Gregory Horton, MD
Internal Medicine Physician · Savannah, GA
Thomas Gregory Horton, MD is an internal medicine physician with a practice address in Savannah, Georgia, and NPI 1245868173, issued on Mar 27, 2020. Check the license on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thomas Gregory Horton
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 67229 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1101 Lexington Ave, Savannah, GA 31404
- Phone
- (912) 350-7171
- Enumerated
- Mar 27, 2020
- Record last updated
- Aug 11, 2025
- Medicare enrollment
- Enrolled (PECOS I20250730003656); accepts Medicare assignment
- Medical or professional school
- Mercer University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,911 in Georgia → Look up another NPI →
Also registered at 1101 Lexington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas Gregory Horton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
21 Medicare Part D claims for 13 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
The MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Savannah Primary Care Associates LLCSavannah, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Gregory Horton among 3,911 internal medicine physician records in Georgia
Thomas Gregory Horton, MD is one of 3,911 internal medicine physician records with a practice address in Georgia. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 83% of them.
- NPI issued2020 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2020 · median 2005 among the 2,535 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
147 internal medicine physician records list a practice address in Savannah
They are 147 of the 5,692 NPPES records with a practice address in Savannah, and 3,911 internal medicine physician records in Georgia.
All 3,911 in Georgia → Every provider in Savannah → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- James Baxter, MDSavannah, GA 314041871506204
- Amy Carrington, MDSavannah, GA 314041336468867
- Timothy Connelly, MDSavannah, GA 314041467616748
- Lora Denton, MDSavannah, GA 314041669494126
- Mary Downing, M.D.Savannah, GA 314041376639237
- Lindsey Goldberg, MDSavannah, GA 314041427379643
- Lloyd Goodman, MDSavannah, GA 314041285670901
- William Hannah, MDSavannah, GA 314041063519353
Common questions
What is Thomas Gregory Horton, MD's NPI number?
Thomas Gregory Horton, MD's National Provider Identifier (NPI) is 1245868173, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Gregory Horton, MD located?
The NPPES record lists a practice address at 1101 Lexington Ave, Savannah, GA, 31404. Phone: (912) 350-7171. Providers update this record themselves, so call before visiting.
How can I verify Thomas Gregory Horton, MD's license?
Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas Gregory Horton, MD prescribe under Medicare Part D?
In 2024, Thomas Gregory Horton, MD had 21 Medicare Part D claims for 13 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Thomas Gregory Horton, MD's MIPS final score?
The 2023 MIPS final score is 97.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.