Quick answers
- Which hospitals does Scott Marrus work at?
- Medicare's official clinician data lists Scott Marrus at 5 hospitals: Fayette County Hospital, HSHS Holy Family Hospital Inc, HSHS St Elizabeth's Hospital, St Joseph's Hospital and St Josephs Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Scott Marrus see patients?
- Medicare's clinician data lists 4 practice locations, including O Fallon, IL, Greenville, IL and Belleville, IL. Call before your visit to confirm the address.
- What is Scott Marrus's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Scott Marrus accept Medicare assignment?
- Yes. Medicare's clinician data says Scott Marrus 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 Scott Marrus?
- (618) 234-2120, as listed in official Medicare / NPI Registry data.
- What is Scott Marrus's NPI number?
- 1063578284. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Scott Marrus works
Medicare's Facility Affiliation Data lists Scott Marrus at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Fayette County HospitalVandalia, IL · Critical Access Hospital · CCN 141346
- HSHS Holy Family Hospital IncGreenville, IL · Acute Care Hospital · CCN 140137
- HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · CCN 140187
- St Joseph's HospitalHighland, IL · Critical Access Hospital · CCN 141336
- St Josephs HospitalBreese, IL · Acute Care Hospital · CCN 140145
Practice locations
Addresses where Scott Marrus is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Saint Elizabeth BlvdO Fallon, IL 62269 (618) 234‑2120
- 200 Health Care DrGreenville, IL 62246 (618) 664‑1230
- 340 W Lincoln St, Suite 400Belleville, IL 62220 (618) 233‑6044
- 9515 Holy Cross LnBreese, IL 62230 (618) 526‑4511
Group practices
Medicare enrollment lists Scott Marrus as a member of these groups (CMS data updated 2026-10-02).
- Prairie Cardiovascular Consultants Ltd90 clinicians in the group
- St Josephs Hospital Breese of the Hospital Sisters of the Third Orde34 clinicians in the group
- St Elizabeths Hospital of the Hospital Sisters of the Third Order29 clinicians in the group
- HSHS Holy Family Hospital Inc25 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Illinois →
Other cardiologists in O Fallon
Clinicians with the same Medicare primary specialty in O Fallon, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063578284 |
| 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