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Internal Medicine

Holly K. Duplechain, MD

Works at hospitals in Tyler, TX · Sulphur Springs, TX · Winnsboro, TX · Texas

Summary

Holly K. Duplechain, MD (Internal Medicine) is listed by Medicare at 5 hospitals in Tyler, TX, Sulphur Springs, TX and Winnsboro, TX. NPI 1831208982. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Holly K. Duplechain, 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
23Years since medical school (graduated 2003)
University Of Texas Medical School At HoustonMedical school
FemaleGender (as listed)
CHRISTUS Trinity Clinic TexasGroup practice

Quick answers

Which hospitals does Holly K. Duplechain work at?
Medicare's official clinician data lists Holly K. Duplechain at 5 hospitals: CHRISTUS Mother Frances Hospital, CHRISTUS Mother Frances Hospital Sulphur Springs, CHRISTUS Mother Frances Hospital- Winnsboro, University of Texas Health Science Center at Tyler and UT Health East Texas Tyler Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Holly K. Duplechain see patients?
Medicare's clinician data lists 9 practice locations, including Quitman, TX, Mineola, TX and Canton, TX. Call before your visit to confirm the address.
What is Holly K. Duplechain's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Holly K. Duplechain accept Medicare assignment?
Yes. Medicare's clinician data says Holly K. Duplechain 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 Holly K. Duplechain?
(903) 763-6333, as listed in official Medicare / NPI Registry data.
What is Holly K. Duplechain's NPI number?
1831208982. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Holly K. Duplechain works

Medicare's Facility Affiliation Data lists Holly K. Duplechain at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Holly K. Duplechain is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.

Group practices

Medicare enrollment lists Holly K. Duplechain as a member of this group (CMS data updated 2026-10-02).

  • CHRISTUS Trinity Clinic Texas1,540 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Texas

Clinicians with the same Medicare primary specialty in Texas — not a recommendation.

All internal medicine doctors in Texas →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At Houston
Graduation year2003
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1831208982
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians