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Internal Medicine

Trey Harrington, DO

Sees patients in Tyler, TX · Texas

Summary

Trey Harrington, DO (Internal Medicine) is enrolled with Medicare at 1 practice location in Tyler, TX. NPI 1942998638. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Trey Harrington, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
3Years since medical school (graduated 2023)
University Of North Texas Hsc, College Of Osteopathic MedMedical school
MaleGender (as listed)
ETMC Physician Group, Inc.Group practice

Quick answers

Where does Trey Harrington see patients?
Medicare's clinician data lists 1 practice location in Tyler, TX. Call before your visit to confirm the address.
What is Trey Harrington's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Trey Harrington accept Medicare assignment?
Yes. Medicare's clinician data says Trey Harrington accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Trey Harrington?
(903) 590-5611, as listed in official Medicare / NPI Registry data.
What is Trey Harrington's NPI number?
1942998638. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Trey Harrington is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Trey Harrington as a member of this group (CMS data updated 2026-10-02).

  • ETMC Physician Group, Inc.381 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Tyler

Clinicians with the same Medicare primary specialty in Tyler, TX — not a recommendation.

All internal medicine doctors in Tyler →

Clinician information

CredentialDO
Medical schoolUniversity Of North Texas Hsc, College Of Osteopathic Med
Graduation year2023
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1942998638
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians