Individual provider Active NPI

Scott Benjamin Marrus, MD

  • Cardiovascular Disease Physician
  • O'Fallon, IL
National Provider Identifier
1063578284
Registry record updated Sep 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
036-139340 Issued in IL
Practice address
Three Saint Elizabeth Blvd Ste 2800
O Fallon, IL 62269-1282
Phone
(618) 233-6044
Fax
(833) 973-4218
NPI assigned
Dec 29, 2006
Last updated
Sep 29, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 29, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Cardiovascular Disease Physician 207RC0000X 2011021984 MO
Cardiovascular Disease Physician 207RC0000X 036-139340 IL Primary

Addresses

Primary practice location

Three Saint Elizabeth Blvd Ste 2800
O Fallon, IL 62269-1282

Mailing address

Three Saint Elizabeth Blvd Ste 2800
O Fallon, IL 62269-1282
Phone (618) 233-6044

Other practice location 1

1 Barnes Jewish Hospital Plz
Saint Louis, MO 63110-1003
Phone (314) 362-1291

Other practice location 2

1 Barnes Jewish Hospital Plz
Saint Louis, MO 63110-1003
Phone (314) 362-1291

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address smarrus150355@ewd.direct.hshs.org Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20151201000695 IL Practitioner - Cardiovascular Disease (Cardiology)Practitioner - Internal Medicine 1254507346 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)Also: Internal Medicine
Education
Washington University School of Medicine, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
HSHS Holy Family Hospital IncGroup PAC ID 7517879349, 25 clinicians

Practice addresses (Care Compare)

1 Saint Elizabeth Blvd
O Fallon, IL 62269-1099
Phone (618) 234-2120

200 Health Care Dr
Greenville, IL 62246-1154
Phone (618) 664-1230

340 W Lincoln St
Suite 400
Belleville, IL 62220-1900
Phone (618) 233-6044

9515 Holy Cross LN
Breese, IL 62230-3618
Phone (618) 526-4511

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
94.81 of 100Reported as apm
Quality
85.98
Promoting interoperability
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036-139340ILMDCardiovascular Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
HSHS Holy Family Hospital Inc CurrentSince Mar 1, 2018 Accepting new patients
St Elizabeths Hospital of the Hospital Sisters of the Third Order Current Accepting new patients
HSHS Holy Family Hospital Inc CurrentSince Mar 1, 2018 Accepting new patients
St Josephs Hospital Breese of the Hospital Sisters of the Third Orde CurrentSince Dec 17, 2017 Accepting new patients
St Josephs Hospital Breese of the Hospital Sisters of the Third Orde CurrentSince Dec 17, 2017 Accepting new patients
St Elizabeths Hospital of the Hospital Sisters of the Third Order CurrentSince Sep 11, 2017 Accepting new patients
St Elizabeths Hospital of the Hospital Sisters of the Third Order CurrentSince Sep 11, 2017 Accepting new patients
Prairie Cardiovascular Consultants LTD Cardiovascular Disease CurrentSince Jul 1, 2017 Accepting new patients

Locations

200 Health Care Dr
Greenville, IL 62246
Phone (618) 664-0808

200 Health Care Dr
#1501
Greenville, IL 62246
Phone (616) 664-1230

1 Saint Elizabeth Blvd
O Fallon, IL 62269
Phone 618234212012438

3 Saint Elizabeth Blvd
Ste 2800
O Fallon, IL 62269
Phone (618) 233-6044

9515 Holy Cross Ln
Saint Rose, IL 62230
Phone (618) 526-4511

3051 Hollis Dr
Springfield, IL 62704
Phone (217) 523-5406

619 E Mason St
#4P57
Springfield, IL 62701

619 E Mason St
Ste 4
Springfield, IL 62701

400 N Caldwell St
Staunton, IL 62088
Phone (618) 635-2200

Interoperability endpoints

  • Direct secure messaging: smarrus150355@ewd.direct.hshs.org

Organizations & group practices 8

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 6

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1167350400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1063578284",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "THREE SAINT ELIZABETH BLVD STE 2800",
            "city": "O FALLON",
            "state": "IL",
            "postal_code": "622691282",
            "telephone_number": "618-233-6044",
            "fax_number": "833-973-4218"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "THREE SAINT ELIZABETH BLVD STE 2800",
            "city": "O FALLON",
            "state": "IL",
            "postal_code": "622691282",
            "telephone_number": "618-233-6044",
            "fax_number": "833-973-4218"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Barnes Jewish Hospital Plz",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631101003",
            "country_code": "US",
            "telephone_number": "314-362-1291",
            "fax_number": "314-362-4278",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1 Barnes Jewish Hospital Plz",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631101003",
            "country_code": "US",
            "telephone_number": "314-362-1291",
            "fax_number": "314-362-4278",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MARRUS",
        "first_name": "SCOTT",
        "middle_name": "BENJAMIN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-29",
        "last_updated": "2026-09-29",
        "certification_date": "2021-12-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MO",
            "license": "2011021984",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "IL",
            "license": "036-139340",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "smarrus150355@ewd.direct.hshs.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CDA/CCD/TXT",
            "address_1": "Three Saint Elizabeth Blvd Ste 2800",
            "city": "O Fallon",
            "state": "IL",
            "country_code": "US",
            "postal_code": "622691282",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in O'Fallon, IL

Sources for this page

Verify at the official NPI Registry.