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Internal Medicine

Roger Kiser, MD

Works at hospitals in Longview, TX · Texas

Summary

Roger Kiser, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Longview, TX. NPI 1154398840. 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 Roger Kiser, 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
58Years since medical school (graduated 1968)
University Of Texas Medical Branch At GalvestonMedical school
MaleGender (as listed)
North Texas Physician Services, PLLCGroup practice (+1 more)

Quick answers

Which hospitals does Roger Kiser work at?
Medicare's official clinician data lists Roger Kiser at 2 hospitals: CHRISTUS Good Shepherd Medical Center and Longview Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Roger Kiser see patients?
Medicare's clinician data lists 3 practice locations, including Longview, TX and Marshall, TX. Call before your visit to confirm the address.
What is Roger Kiser's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Roger Kiser accept Medicare assignment?
Yes. Medicare's clinician data says Roger Kiser 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 Roger Kiser?
(903) 758-1818, as listed in official Medicare / NPI Registry data.
What is Roger Kiser's NPI number?
1154398840. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Roger Kiser works

Medicare's Facility Affiliation Data lists Roger Kiser 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 Roger Kiser is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Roger Kiser as a member of these groups (CMS data updated 2026-10-02).

  • North Texas Physician Services, PLLC238 clinicians in the group
  • Associated Clinicians of East Texas108 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Longview

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

All internal medicine doctors in Longview →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical Branch At Galveston
Graduation year1968
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1154398840
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