Quick answers
- Which hospitals does Oh-Hoon Kwon work at?
- Medicare's official clinician data lists Oh-Hoon Kwon at 3 hospitals: Edward Hospital, Northwestern Medicine Central Dupage Hospital and Swedish Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Oh-Hoon Kwon see patients?
- Medicare's clinician data lists 2 practice locations, including Naperville, IL and Elmhurst, IL. Call before your visit to confirm the address.
- What is Oh-Hoon Kwon's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does Oh-Hoon Kwon accept Medicare assignment?
- Yes. Medicare's clinician data says Oh-Hoon Kwon 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 Oh-Hoon Kwon?
- (630) 646-6161, as listed in official Medicare / NPI Registry data.
- What is Oh-Hoon Kwon's NPI number?
- 1215981956. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Oh-Hoon Kwon works
Medicare's Facility Affiliation Data lists Oh-Hoon Kwon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Edward HospitalNaperville, IL · Acute Care Hospital · CCN 140231
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
- Swedish HospitalChicago, IL · Acute Care Hospital · CCN 140114
Practice locations
Addresses where Oh-Hoon Kwon is enrolled with Medicare (CMS data updated 2026-10-02).
- 120 Spalding Dr, Suite 111Naperville, IL 60540 (630) 646‑6161
- 177 E Brush Hill RdElmhurst, IL 60126 (331) 221‑5900
Group practices
Medicare enrollment lists Oh-Hoon Kwon as a member of this group (CMS data updated 2026-10-02).
- Fox Valley Radiation Oncology LLC4 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Naperville
Clinicians with the same Medicare primary specialty in Naperville, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215981956 |
| 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