Quick answers
- Which hospitals does Yifei Sun work at?
- Medicare's official clinician data lists Yifei Sun at 5 hospitals: Decatur Memorial Hospital, HSHS St Elizabeth's Hospital, St Francis Hospital, St Josephs Hospital and St Marys Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Yifei Sun see patients?
- Medicare's clinician data lists 6 practice locations, including O Fallon, IL, Litchfield, IL and Decatur, IL. Call before your visit to confirm the address.
- What is Yifei Sun's specialty?
- Medicare lists Vascular Surgery as the primary specialty.
- Does Yifei Sun accept Medicare assignment?
- Yes. Medicare's clinician data says Yifei Sun 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 Yifei Sun?
- (618) 234-2120, as listed in official Medicare / NPI Registry data.
- What is Yifei Sun's NPI number?
- 1477840833. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Yifei Sun works
Medicare's Facility Affiliation Data lists Yifei Sun at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Decatur Memorial HospitalDecatur, IL · Acute Care Hospital · CCN 140135
- HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · CCN 140187
- St Francis HospitalLitchfield, IL · Critical Access Hospital · CCN 141350
- St Josephs HospitalBreese, IL · Acute Care Hospital · CCN 140145
- St Marys HospitalDecatur, IL · Acute Care Hospital · CCN 140166
Practice locations
Addresses where Yifei Sun is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1 Saint Elizabeth BlvdO Fallon, IL 62269 (618) 234‑2120
- 1215 Franciscan DrLitchfield, IL 62056 (217) 324‑2191
- 1800 E Lake Shore Dr 6th FlrDecatur, IL 62521 (217) 422‑6100
- 2300 N Edward StDecatur, IL 62526 (217) 422‑6100
- 3 Saint Elizabeth Blvd, Suite 2800O Fallon, IL 62269 (618) 233‑6044
Group practices
Medicare enrollment lists Yifei Sun as a member of this group (CMS data updated 2026-10-02).
- Prairie Cardiovascular Consultants Ltd90 clinicians in the group
Specialties
- Vascular Surgeryprimary
Other vascular surgeons in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477840833 |
| 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