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Emergency Medicine

Todd L. Engdahl, MD

Works at hospitals in Alton, IL · Illinois

Summary

Dr. Todd L. Engdahl, MD is an emergency medicine doctor at 1 Saint Anthonys Way, Alton, IL 62002. Phone: (618) 465-2571. Accepts Medicare assignment. In 2024, Todd L. Engdahl had 230 Original Medicare patients and 319 services. NPI 1356330005. 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: 1 Saint Anthonys Way, Alton, IL 62002 · Directions
  • Phone: (618) 465‑2571
  • Medicare: Accepts Medicare assignment
  • Hospital: OSF Saint Anthony's Health Center
  • Group practice: Alton-Griffin Emergency Group PC
  • Medical school: graduated 1994 (32 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Todd L. Engdahl, 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 Todd L. Engdahl accept Medicare assignment?
Yes. Medicare's clinician data says Todd L. Engdahl 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 Todd L. Engdahl see?
In 2024, CMS data shows 230 Original Medicare patients and 319 services for Todd L. Engdahl. This counts Original Medicare only and measures volume, not quality.
What is Todd L. Engdahl's NPI number?
1356330005. 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 Todd L. Engdahl, 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 patients230
Services billed to Medicare319
Different services or procedures9
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)164 services
  2. Emergency department visit with high level of medical decision making (99285)66 services
  3. Emergency department visit with moderate level of medical decision making (99284)54 services
  4. Emergency department visit with low level of medical decision making (99283)26 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%
  • Arthritis50%
  • Ischemic heart disease49%
  • Chronic kidney disease47%
  • Anxiety41%

Hospitals where Todd L. Engdahl works

Medicare's Facility Affiliation Data lists Todd L. Engdahl 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 Todd L. Engdahl is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Todd L. Engdahl as a member of this group (CMS data updated October 2, 2026).

  • Alton-Griffin Emergency Group PC18 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Illinois →

Other emergency medicine doctors in Alton

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

All emergency medicine doctors in Alton →

Other clinicians in Alton-Griffin Emergency Group PC

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

Clinician information

CredentialMD
Graduation year1994 (32 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1356330005
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