DR. THOMAS GREGORY HORTON (MD) – Internal Medicine Physician, NPI 1245868173

DR. THOMAS GREGORY HORTON (MD) is a healthcare provider. based in Nashville, Tennessee. specializing in INTERNAL MEDICINE. They hold the professional credentials MD. They hold a License No. 67229 (TN). The NPI Number for DR. THOMAS GREGORY HORTON (MD) is 1245868173

Main info

Male
6 Years Of Experience
Accepts Medicare Assignment
Name
DR. THOMAS GREGORY HORTON (MD)
NPI
1245868173
Phone
(615) 936-2187
Address
719 THOMPSON LN STE 20400
Enumeration Date
27 March 2020
Last Update Date
11 August 2025

Doctor Profile

Medical School Name
MERCER UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
9123508000
Graduation Year
2020 (6 years ago)
PAC ID
1456776368
Group Practice PAC ID
4688935760
Professional Enrollment ID
I20250730003656
Address ID
GA314046220SA4700XAVEX300

Contacts

Secure Messaging
thorton572843@direct.vumc.org
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience41
Completeness95
Years active:6State licenses:1Other names

3,527 INTERNAL MEDICINE in TN

Provider Addresses for DR. THOMAS GREGORY HORTON (MD)

  • 719 THOMPSON LN STE 20400

    NASHVILLE, TN 372044600

    Phone: (615) 936-2187

    Type: Mailing

  • 719 Thompson Ln Ste 20400

    Nashville, TN 372044600

    Phone: (615) 936-2187

    Fax: (615) 936-3533

    Type: Location

  • 1101 LEXINGTON AVE

    SAVANNAH, GA 314045502

    Phone: (912) 350-7171

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2025-07-30

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20230725000665IInternal MedicineTNTBD
I20250730003656IInternal MedicineGATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 37204)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4688935760View full group profile
NameSpecialtyState
Internal Medicine, Geriatric MedicineGA
Internal MedicineGA
Internal MedicineGA
Internal MedicineGA
Family Practice, Obstetrics/GynecologyNY
-GA
Internal MedicineGA
Internal MedicineGA
Internal MedicineGA
Internal MedicineGA

Reviews

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Frequently asked questions

What is DR. THOMAS GREGORY HORTON (MD)'s NPI number?
DR. THOMAS GREGORY HORTON (MD)'s NPI is 1245868173 — the number used across U.S. healthcare to identify this provider.
Is DR. THOMAS GREGORY HORTON (MD) shown as active in public data?
Registry records indicate DR. THOMAS GREGORY HORTON (MD) maintains an active NPI.
How would a patient describe DR. THOMAS GREGORY HORTON (MD)'s focus?
For DR. THOMAS GREGORY HORTON (MD), the primary taxonomy reads as Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
What practice footprint exists for DR. THOMAS GREGORY HORTON (MD)?
Travel planning: use Nashville, Tennessee as the reference point for DR. THOMAS GREGORY HORTON (MD), then confirm.
Can I trust this NPI listing for DR. THOMAS GREGORY HORTON (MD)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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