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Emergency Medicine

Mari B. Baker, MD

Works at hospitals in Peoria, IL · Pekin, IL · Peru, IL … · Illinois

Summary

Mari B. Baker, MD (Emergency Medicine) is listed by Medicare at 5 hospitals in Peoria, IL, Pekin, IL and Peru, IL and other places. NPI 1962431585. 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 Mari B. Baker, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
23Years since medical school (graduated 2003)
Southern Illinois University School Of MedicineMedical school
FemaleGender (as listed)
Oncology-Hematology Associates of Central Illinois P CGroup practice

Quick answers

Which hospitals does Mari B. Baker work at?
Medicare's official clinician data lists Mari B. Baker at 5 hospitals: Carle Health Methodist Hospital, Carle Health Pekin Hospital, OSF Saint Elizabeth MDL Ctr, Saint Francis Medical Center and St Joseph Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mari B. Baker see patients?
Medicare's clinician data lists 2 practice locations, including Galesburg, IL and Peoria, IL. Call before your visit to confirm the address.
What is Mari B. Baker's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Mari B. Baker accept Medicare assignment?
Yes. Medicare's clinician data says Mari B. Baker 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.
Does Mari B. Baker offer telehealth?
Medicare's clinician data says Mari B. Baker offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mari B. Baker?
(309) 341-3000, as listed in official Medicare / NPI Registry data.
What is Mari B. Baker's NPI number?
1962431585. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mari B. Baker works

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

Group practices

Medicare enrollment lists Mari B. Baker as a member of this group (CMS data updated 2026-10-02).

  • Oncology-Hematology Associates of Central Illinois P C67 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Illinois →

Other emergency medicine doctors in Galesburg

Clinicians with the same Medicare primary specialty in Galesburg, IL — not a recommendation.

All emergency medicine doctors in Galesburg →

Clinician information

CredentialMD
Medical schoolSouthern Illinois University School Of Medicine
Graduation year2003
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1962431585
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