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Gastroenterology

Clark W. Antonson, MD

Works at hospitals in Beatrice, NE · Lincoln, NE · Fairbury, NE … · Nebraska

Summary

Clark W. Antonson, MD (Gastroenterology) is listed by Medicare at 5 hospitals in Beatrice, NE, Lincoln, NE and Fairbury, NE and other places. NPI 1831182757. 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 Clark W. Antonson, 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

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
41Years since medical school (graduated 1985)
University Of Nebraska College Of MedicineMedical school
MaleGender (as listed)
Gastroenterology Specialties PCGroup practice

Quick answers

Which hospitals does Clark W. Antonson work at?
Medicare's official clinician data lists Clark W. Antonson at 5 hospitals: Beatrice Community Hospital & Health Center, Inc, Bryan Medical Center, CHI Health St. Elizabeth, Jefferson Community Health & Life and The Nebraska Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Clark W. Antonson see patients?
Medicare's clinician data lists 1 practice location in Lincoln, NE. Call before your visit to confirm the address.
What is Clark W. Antonson's specialty?
Medicare lists Gastroenterology as the primary specialty.
Does Clark W. Antonson accept Medicare assignment?
Yes. Medicare's clinician data says Clark W. Antonson 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 Clark W. Antonson?
(402) 465-4545, as listed in official Medicare / NPI Registry data.
What is Clark W. Antonson's NPI number?
1831182757. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Clark W. Antonson works

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

Group practices

Medicare enrollment lists Clark W. Antonson as a member of this group (CMS data updated 2026-10-02).

  • Gastroenterology Specialties PC51 clinicians in the group

Specialties

Find other Gastroenterology doctors in Nebraska →

Other gastroenterologists in Lincoln

Clinicians with the same Medicare primary specialty in Lincoln, NE — not a recommendation.

All gastroenterologists in Lincoln →

Clinician information

CredentialMD
Medical schoolUniversity Of Nebraska College Of Medicine
Graduation year1985
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1831182757
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