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Hand Surgery

Michael A. Gainer, MD

Works at hospitals in Decatur, IL · Springfield, IL · Illinois

Summary

Michael A. Gainer, MD (Hand Surgery) is listed by Medicare at 3 hospitals in Decatur, IL and Springfield, IL. NPI 1922068303. 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 Michael A. Gainer, 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

Hand SurgeryPrimary specialty
YesAccepts Medicare assignment
31Years since medical school (graduated 1995)
Southern Illinois University School Of MedicineMedical school
MaleGender (as listed)
Orthopaedic Center of IlGroup practice

Quick answers

Which hospitals does Michael A. Gainer work at?
Medicare's official clinician data lists Michael A. Gainer at 3 hospitals: Decatur Memorial Hospital, Memorial Medical Center and St Johns Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael A. Gainer see patients?
Medicare's clinician data lists 2 practice locations, including Springfield, IL and Lincoln, IL. Call before your visit to confirm the address.
What is Michael A. Gainer's specialty?
Medicare lists Hand Surgery as the primary specialty.
Does Michael A. Gainer accept Medicare assignment?
Yes. Medicare's clinician data says Michael A. Gainer 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 Michael A. Gainer?
(217) 547-9100, as listed in official Medicare / NPI Registry data.
What is Michael A. Gainer's NPI number?
1922068303. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael A. Gainer works

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

Group practices

Medicare enrollment lists Michael A. Gainer as a member of this group (CMS data updated 2026-10-02).

  • Orthopaedic Center of Il32 clinicians in the group

Specialties

Find other Hand Surgery doctors in Illinois →

Other hand surgeons in Illinois

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

All hand surgeons in Illinois →

Clinician information

CredentialMD
Medical schoolSouthern Illinois University School Of Medicine
Graduation year1995
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1922068303
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