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DR. THOMAS GREGORY HORTON MD
NPI 1245868173
Internal Medicine in Savannah, GA

Active since March 27, 2020PECOS EnrolledAccepts Medicare Assignment
97.12/100
CMS Quality Rating
1101 LEXINGTON AVE, SAVANNAH, GA 31404(912) 350-7171 Get Directions Write a Review

NPPES record last updated: August 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 11, 2025, May 5, 2024, Jun 21, 2023 and 2 more (5 updates tracked since 2020).

About Dr. Thomas Gregory Horton Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THOMAS GREGORY HORTON MD (NPI 1245868173) is an individual internal medicine provider in Savannah, Georgia, licensed in Tennessee (67229) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Memorial University Medical Center, and maintains a secondary practice location in Nashville.

NPPES Registry Identity

NPI1245868173
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. THOMAS GREGORY HORTONCredential: MD
Location Address1101 LEXINGTON AVESavannah, GA 31404-5502
Mailing Address1101 Lexington AveSavannah, GA 31404-5502 · (912) 350-7171
Phone(912) 350-7171
Sole ProprietorNo
Medical School CMSMercer University School Of MedicineGraduated 2020
Enumeration DateMarch 27, 2020
Last NPPES UpdateAugust 11, 20255 updates tracked since enumeration
NPPES CertifiedAugust 11, 2025
✔ NPI 1245868173 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TN · 67229
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1101 LEXINGTON AVE, Savannah, GA 31404
Open in Google Maps ↗

Secondary Practice Location 1

Location 1719 Thompson Ln Ste 20400Nashville, TN 37204-4600 · Phone (615) 936-2187 · Fax (615) 936-3533

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., Ambetter from Absolute Total Care, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas Gregory Horton Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456776368
PECOS Enrollment IDI20250730003656
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial University Medical Center

Acute Care Hospitals · Savannah, GA
1/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number110036
Location4700 Waters AvenueSavannah, GA 31404 · Chatham County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 31404 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$124.10 typical visit price
range $53.31 – $164.04
Typical copayment $31.02 (range $13.32 – $41.01)
Most-billed visit code 99204
Established Patient
$94.84 typical visit price
range $16.68 – $133.24
Typical copayment $23.71 (range $4.17 – $33.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.12/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality85.64
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. WILLIAM N HANNAH JR. MD
Internal Medicine
1101 LEXINGTON AVE
SAVANNAH, GA 31404
Chatham County (912) 350-7171
MICHAEL ANTHONY RUIZ MD
Internal Medicine
1101 LEXINGTON AVE
SAVANNAH, GA 31404
Chatham County (912) 350-7171
LLOYD STANLEY GOODMAN MD
Internal Medicine
1101 LEXINGTON AVE
SAVANNAH, GA 31404
Chatham County (912) 350-7171
MPPG, INC.
Obstetrics & Gynecology
1101 LEXINGTON AVE
SAVANNAH, GA 31404
Chatham County (912) 350-9633
MICHAEL KHESHVADJIAN MD
Student in an Organized Health Care Education/Training Program
1101 LEXINGTON AVE
SAVANNAH, GA 31404
Chatham County (912) 350-7573
DR. PRIYA PUJARA M.D.
Internal Medicine
1101 LEXINGTON AVE
SAVANNAH, GA 31404
Chatham County (912) 350-7171
NIGEL D'SOUZA
Student in an Organized Health Care Education/Training Program
1101 LEXINGTON AVE
SAVANNAH, GA 31404
Chatham County (912) 350-7573
CRISTINA MARIA NEGREA MD
Internal Medicine (Geriatric Medicine)
1101 LEXINGTON AVE
SAVANNAH, GA 31404
Chatham County (912) 350-7171

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Horton's NPI number?

The NPI number for Thomas Horton is 1245868173. It was assigned to this individual provider in the NPPES registry on March 27, 2020.

Where is Thomas Horton located?

Thomas Horton practices at 1101 Lexington Ave, Savannah, GA 31404. The listed phone number is (912) 350-7171.

What is Thomas Horton's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Thomas Horton enrolled in Medicare?

Yes. Thomas Horton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Thomas Horton accept?

Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama and Ambetter of North Carolina and 1 other insurer list Thomas Horton as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Thomas Horton affiliated with any hospitals?

According to CMS data, Thomas Horton is affiliated with Memorial University Medical Center.

When was this NPI record last updated?

The NPPES record for Thomas Horton was last updated on August 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.