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Emergency Medicine

Leo C. Dilan, DO

Works at hospitals in Chicago, IL · Illinois

Summary

Leo C. Dilan, DO (Emergency Medicine) is listed by Medicare at 1 hospital in Chicago, IL. NPI 1598717944. 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 Leo C. Dilan, 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
31Years since medical school (graduated 1995)
Kansas City University Of Med & Biosciences, College Of Osteo MedMedical school
MaleGender (as listed)
Endeavor Health Medical GroupGroup practice

Quick answers

Which hospitals does Leo C. Dilan work at?
Medicare's official clinician data lists Leo C. Dilan at 1 hospital: Swedish Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Leo C. Dilan see patients?
Medicare's clinician data lists 3 practice locations, including Evanston, IL and Chicago, IL. Call before your visit to confirm the address.
What is Leo C. Dilan's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Leo C. Dilan accept Medicare assignment?
Yes. Medicare's clinician data says Leo C. Dilan 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 Leo C. Dilan?
(773) 989-3803, as listed in official Medicare / NPI Registry data.
What is Leo C. Dilan's NPI number?
1598717944. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Leo C. Dilan works

Medicare's Facility Affiliation Data lists Leo C. Dilan 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 Leo C. Dilan is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Leo C. Dilan as a member of this group (CMS data updated 2026-10-02).

  • Endeavor Health Medical Group3,350 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Illinois →

Other emergency medicine doctors in Evanston

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

All emergency medicine doctors in Evanston →

Clinician information

CredentialDO
Medical schoolKansas City University Of Med & Biosciences, College Of Osteo Med
Graduation year1995
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598717944
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