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Emergency Medicine

Gerald W. McClallen, DO

Works at hospitals in Eldorado, IL · Illinois

Summary

Dr. Gerald W. McClallen, DO is an emergency medicine doctor at 1201 Pine St, Eldorado, IL 62930. Phone: (618) 273-3361. Accepts Medicare assignment. In 2024, Gerald W. McClallen had 76 Original Medicare patients and 124 services. NPI 1285686709. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 1201 Pine St, Eldorado, IL 62930 · Directions
  • Phone: (618) 273‑3361
  • Medicare: Accepts Medicare assignment
  • Hospital: Ferrell Hospital Community Foundations
  • Group practice: Eldorado Emergency Group PC
  • Medical school: At Still University Of Health Sciences, College Of Osteo Med, Kirksville · graduated 1984 (42 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Gerald W. McClallen, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Gerald W. McClallen accept Medicare assignment?
Yes. Medicare's clinician data says Gerald W. McClallen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Gerald W. McClallen see?
In 2024, CMS data shows 76 Original Medicare patients and 124 services for Gerald W. McClallen. This counts Original Medicare only and measures volume, not quality.
What is Gerald W. McClallen's NPI number?
1285686709. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Gerald W. McClallen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients76
Services billed to Medicare124
Different services or procedures5
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)47 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)45 services
  3. Emergency department visit with moderate level of medical decision making (99284)17 services
  4. Critical care, first 30-74 minutes (99291)14 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis72%
  • Anxiety58%
  • Depression49%
  • COPD45%

Hospitals where Gerald W. McClallen works

Medicare's Facility Affiliation Data lists Gerald W. McClallen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Gerald W. McClallen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Gerald W. McClallen as a member of this group (CMS data updated October 2, 2026).

  • Eldorado Emergency Group PC14 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Illinois →

Other emergency medicine doctors in Eldorado

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

All emergency medicine doctors in Eldorado →

Other clinicians in Eldorado Emergency Group PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Medical schoolAt Still University Of Health Sciences, College Of Osteo Med, Kirksville
Graduation year1984 (42 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1285686709
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians