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Medical Oncology

John C. Halbrook, MD

Works at hospitals in Meridian, MS · Mississippi

Summary

John C. Halbrook, MD (Medical Oncology) is listed by Medicare at 2 hospitals in Meridian, MS. NPI 1992782924. 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 John C. Halbrook, 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

Medical OncologyPrimary specialty
YesAccepts Medicare assignment
52Years since medical school (graduated 1974)
University Of Mississippi School Of MedicineMedical school
MaleGender (as listed)
Meridian Oncology Associates PLLCGroup practice

Quick answers

Which hospitals does John C. Halbrook work at?
Medicare's official clinician data lists John C. Halbrook at 2 hospitals: Anderson Regional Medical Center and Ochsner Rush Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John C. Halbrook see patients?
Medicare's clinician data lists 1 practice location in Meridian, MS. Call before your visit to confirm the address.
What is John C. Halbrook's specialty?
Medicare lists Medical Oncology as the primary specialty, and also Hematology/Oncology and Internal Medicine.
Does John C. Halbrook accept Medicare assignment?
Yes. Medicare's clinician data says John C. Halbrook 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 John C. Halbrook?
(601) 482-1555, as listed in official Medicare / NPI Registry data.
What is John C. Halbrook's NPI number?
1992782924. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John C. Halbrook works

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

Group practices

Medicare enrollment lists John C. Halbrook as a member of this group (CMS data updated 2026-10-02).

  • Meridian Oncology Associates PLLC4 clinicians in the group

Specialties

Find other Medical Oncology doctors in Mississippi →

Other oncologists in Mississippi

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

All oncologists in Mississippi →

Clinician information

CredentialMD
Medical schoolUniversity Of Mississippi School Of Medicine
Graduation year1974
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1992782924
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