Quick answers
- Which hospitals does Eugene Ahn work at?
- Medicare's official clinician data lists Eugene Ahn at 2 hospitals: Loyola Gottlieb Memorial Hospital and Loyola University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Eugene Ahn see patients?
- Medicare's clinician data lists 1 practice location in Maywood, IL. Call before your visit to confirm the address.
- What is Eugene Ahn's specialty?
- Medicare lists Medical Oncology as the primary specialty.
- Does Eugene Ahn accept Medicare assignment?
- Yes. Medicare's clinician data says Eugene Ahn 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 Eugene Ahn?
- (708) 216-8372, as listed in official Medicare / NPI Registry data.
- What is Eugene Ahn's NPI number?
- 1093911307. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Eugene Ahn works
Medicare's Facility Affiliation Data lists Eugene Ahn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Loyola Gottlieb Memorial HospitalMelrose Park, IL · Acute Care Hospital · CCN 140008
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · CCN 140276
Practice locations
Addresses where Eugene Ahn is enrolled with Medicare (CMS data updated 2026-10-02).
- 2160 S 1st AveMaywood, IL 60153 (708) 216‑8372
Group practices
Medicare enrollment lists Eugene Ahn as a member of this group (CMS data updated 2026-10-02).
- Loyola University Medical Center953 clinicians in the group
Specialties
- Medical Oncologyprimary
Other oncologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Miami, Lm Miller School Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093911307 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians