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Emergency Medicine

Herbert M. Zerth Iii, MD

Works at hospitals in Mattoon, IL · Hinsdale, IL · Illinois

Summary

Herbert M. Zerth Iii, MD (Emergency Medicine) is listed by Medicare at 2 hospitals in Mattoon, IL and Hinsdale, IL. NPI 1336305051. 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 Herbert M. Zerth Iii, 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
19Years since medical school (graduated 2007)
Southern Illinois University School Of MedicineMedical school
MaleGender (as listed)
Dupage Medical Group LtdGroup practice (+2 more)

Quick answers

Which hospitals does Herbert M. Zerth Iii work at?
Medicare's official clinician data lists Herbert M. Zerth Iii at 2 hospitals: Sarah Bush Lincoln Health Center and UChicago Medicine AdventHealth Hinsdale. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Herbert M. Zerth Iii see patients?
Medicare's clinician data lists 8 practice locations, including Mattoon, IL, Hinsdale, IL and Schaumburg, IL. Call before your visit to confirm the address.
What is Herbert M. Zerth Iii's specialty?
Medicare lists Emergency Medicine as the primary specialty, and also Internal Medicine.
Does Herbert M. Zerth Iii accept Medicare assignment?
Yes. Medicare's clinician data says Herbert M. Zerth Iii 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 Herbert M. Zerth Iii?
(217) 258-2525, as listed in official Medicare / NPI Registry data.
What is Herbert M. Zerth Iii's NPI number?
1336305051. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Herbert M. Zerth Iii works

Medicare's Facility Affiliation Data lists Herbert M. Zerth Iii 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 Herbert M. Zerth Iii is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.

Group practices

Medicare enrollment lists Herbert M. Zerth Iii as a member of these groups (CMS data updated 2026-10-02).

  • Dupage Medical Group Ltd1,322 clinicians in the group
  • Sarah Bush Lincoln Health Center419 clinicians in the group
  • Illinois Emergency Medicine Specialists LLC42 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Illinois →

Other emergency medicine doctors in Mattoon

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

All emergency medicine doctors in Mattoon →

Clinician information

CredentialMD
Medical schoolSouthern Illinois University School Of Medicine
Graduation year2007
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336305051
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