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Rheumatology

Mark Jarek, MD

Works at hospitals in Bolivar, MO · Joplin, MO · Carthage, MO … · Missouri, Kansas

Summary

Mark Jarek, MD (Rheumatology) is listed by Medicare at 5 hospitals in Bolivar, MO, Joplin, MO and Carthage, MO and other places. NPI 1013955541. 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 Mark Jarek, 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

RheumatologyPrimary specialty
YesAccepts Medicare assignment
37Years since medical school (graduated 1989)
Hahnemann University College Of MedicineMedical school
MaleGender (as listed)
Freeman-Oak Hill Health SystemGroup practice (+1 more)

Quick answers

Which hospitals does Mark Jarek work at?
Medicare's official clinician data lists Mark Jarek at 5 hospitals: Citizens Memorial Hospital, Freeman Health System - Freeman West, Mercy Hospital Carthage, Mercy Hospital Joplin and Mercy Hospital Pittsburg, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mark Jarek see patients?
Medicare's clinician data lists 6 practice locations, including Bolivar, MO and Lamar, MO. Call before your visit to confirm the address.
What is Mark Jarek's specialty?
Medicare lists Rheumatology as the primary specialty.
Does Mark Jarek accept Medicare assignment?
Yes. Medicare's clinician data says Mark Jarek 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 Mark Jarek?
(417) 328-7000, as listed in official Medicare / NPI Registry data.
What is Mark Jarek's NPI number?
1013955541. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mark Jarek works

Medicare's Facility Affiliation Data lists Mark Jarek 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 Mark Jarek is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.

Group practices

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

  • Freeman-Oak Hill Health System394 clinicians in the group
  • Citizens Memorial Healthcare146 clinicians in the group

Specialties

Find other Rheumatology doctors in Missouri →

Other rheumatologists in Missouri

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

All rheumatologists in Missouri →

Clinician information

CredentialMD
Medical schoolHahnemann University College Of Medicine
Graduation year1989
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1013955541
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