Quick answers
- Which hospitals does Ivan Guan work at?
- Medicare's official clinician data lists Ivan Guan at 2 hospitals: Ingalls Memorial Hospital and The University of Chicago Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ivan Guan see patients?
- Medicare's clinician data lists 2 practice locations, including Burr Ridge, IL and Chicago, IL. Call before your visit to confirm the address.
- What is Ivan Guan's specialty?
- Medicare lists Neurology as the primary specialty.
- Does Ivan Guan accept Medicare assignment?
- Medicare's clinician data says Ivan Guan may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Ivan Guan's NPI number?
- 1649850348. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ivan Guan works
Medicare's Facility Affiliation Data lists Ivan Guan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ingalls Memorial HospitalHarvey, IL · Acute Care Hospital · CCN 140191
- The University of Chicago Medical CenterChicago, IL · Acute Care Hospital · CCN 140088
Practice locations
Addresses where Ivan Guan is enrolled with Medicare (CMS data updated 2026-10-02).
- 150 Harvester Dr, Suite 300Burr Ridge, IL 60527
- 900 S Clark St, Apt 2207Chicago, IL 60605
Specialties
- Neurologyprimary
Other neurologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1649850348 |
| 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