Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. SCOTT BENJAMIN MARRUS MD
NPI 1063578284
Internal Medicine - Cardiovascular Disease in O Fallon, IL

Q: What is Scott Marrus's NPI number?

The NPI number for Scott Marrus is 1063578284. It was assigned to this individual provider in the NPPES registry on December 29, 2006.

Q: What is Scott Marrus's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Scott Marrus was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 29, 2006PECOS EnrolledAccepts Medicare Assignment

94.61/100

CMS Quality Rating

THREE SAINT ELIZABETH BLVD STE 2800, O FALLON, IL 62269(618) 233-6044(833) 973-4218 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 29, 2026, Dec 21, 2021, Mar 18, 2020 and 1 more (4 updates tracked since 2019).

On this page

About Dr. Scott Benjamin Marrus Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SCOTT BENJAMIN MARRUS MD (NPI 1063578284) is an individual cardiovascular disease provider in O Fallon, Illinois, licensed in Illinois (036-139340) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Hshs Holy Family Hospital Inc, and maintains a secondary practice location in Saint Louis.

NPPES Registry Identity

NPI1063578284

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameDR. SCOTT BENJAMIN MARRUSCredential: MD

Location AddressTHREE SAINT ELIZABETH BLVD STE 2800O Fallon, IL 62269-1282

Mailing AddressThree Saint Elizabeth Blvd Ste 2800O Fallon, IL 62269-1282 · (618) 233-6044 · Fax (833) 973-4218

Phone(618) 233-6044

Fax(833) 973-4218

Sole ProprietorNo

Medical School CMSWashington University School Of MedicineGraduated 2005

Enumeration DateDecember 29, 2006

Last NPPES UpdateSeptember 29, 20264 updates tracked since enumeration

NPPES CertifiedDecember 21, 2021

✔ NPI 1063578284 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

Licenses✔ Licensed in IL · 036-139340✔ Licensed in MO · 2011021984

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

THREE SAINT ELIZABETH BLVD STE 2800, O Fallon, IL 62269

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Secondary Practice Location 1

Location 11 Barnes Jewish Hospital PlzSaint Louis, MO 63110-1003 · Phone (314) 362-1291 · Fax (314) 362-4278

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Medica and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Scott Benjamin Marrus Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1254507346

PECOS Enrollment IDI20151201000695

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Scott Marrus reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St Elizabeths Hospital Of The Hospital Sisters Of The Third Order

0.1 mi

Cardiovascular Disease

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

Reassigned Medicare billing, Illinois enrollment
38 clinicians in this Medicare group

NPI 1326268202 (618) 234-2120

Anderson Medical Group, LLC

11 mi

General Practice

6810 STATE ROUTE 162, SUITE 215
Maryville, IL 62062

Reassigned Medicare billing, Illinois enrollment
145 clinicians in this Medicare group

NPI 1700807716 (618) 288-5711

St Josephs Hospital Breese Of The Hospital Sisters Of The Third Orde

13 mi

Rural Health

211 E HANOVER ST
New Baden, IL 62265

Reassigned Medicare billing, Illinois enrollment
54 clinicians in this Medicare group

NPI 1821486085 (618) 588-2900

Hshs Holy Family Hospital Inc

36 mi

Obstetrics & Gynecology

150 HEALTHCARE DRIVE
Greenville, IL 62246

Reassigned Medicare billing, Illinois enrollment
42 clinicians in this Medicare group

NPI 1992889125 (618) 664-9830

Prairie Cardiovascular Consultants Ltd

82 mi

Multi-Specialty

3051 HOLLIS DR FL 2
Springfield, IL 62704

Reassigned Medicare billing, Illinois enrollment
101 clinicians in this Medicare group

NPI 1982714218 (217) 492-9695

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 24

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

1,027 services809 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

719 services594 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

400 services389 patients

Evaluation of cardiac rhythm monitor system, remote up to 30 days 93298

This procedure involves remotely monitoring your heart rhythm for up to 30 days. A small device will record your heart's activity, which can be accessed by your healthcare team. This aids in diagnosing any irregularities or issues with your heart function.

229 services34 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days 93296

This procedure involves remotely monitoring your pacemaker or implantable defibrillator system. Over a 90-day period, we check the device's performance and your heart's activity. This helps ensure the device is functioning properly and providing the best possible support for your heart health.

202 services80 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 93294

This procedure evaluates your pacemaker system remotely for up to 90 days. It checks whether single, dual, multiple lead, or leadless pacemakers are working properly. It's a safe, convenient way to ensure your heart device is functioning optimally.

188 services74 patients

Blood test, clotting time 85610

A clotting time blood test helps determine how quickly your blood forms clots, a process crucial to stop bleeding. During the test, a small blood sample is taken from your arm. The sample is then analyzed in a lab to see how long it takes for a clot to form.

173 services16 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

84 services83 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

84 services84 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

84 services79 patients

Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional 93229

An Electrocardiogram (ECG) is a test that records your heart's electrical activity for up to 30 days. You trigger a transmission if you feel symptoms, which is then reviewed by a healthcare professional. The report helps diagnose heart conditions.

81 services80 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

77 services77 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

77 services77 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

77 services47 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

48 services46 patients

Routine electrocardiogram (ecg) using at least 12 leads with tracing 93005

An Electrocardiogram (ECG) is a simple, painless test that records the heart's electrical activity. Using 12 leads attached to your skin, it generates a tracing of your heart rhythm. It helps detect any heart problems by showing the timing and strength of electrical signals passing through each part of your heart.

46 services44 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

35 services35 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

32 services32 patients

Programming of dual lead pacemaker system 93280

Programming of a dual lead pacemaker system is a procedure to adjust your heart's pacemaker settings. This process involves a small device, called a programmer, that communicates with your pacemaker to ensure it's working optimally for your heart's needs.

30 services28 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

22 services20 patients

External shock to heart to regulate heart beat 92960

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

20 services17 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

19 services19 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

17 services15 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

13 services13 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hshs Holy Family Hospital Inc

Acute Care Hospitals · Greenville, IL

OwnershipVoluntary non-profit - Church

CMS Certification Number140137

Location200 Health Care DrGreenville, IL 62246 · Bond County

Emergency services

St Josephs Hospital

Acute Care Hospitals · Breese, IL

OwnershipVoluntary non-profit - Church

CMS Certification Number140145

Location9515 Holy Cross LnBreese, IL 62230 · Clinton County

Emergency services Birthing friendly

Hshs St Elizabeth's Hospital

Acute Care Hospitals · O Fallon, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140187

LocationOne St Elizabeth BoulevardO Fallon, IL 62269 · St. Clair County

Emergency services Birthing friendly

St Joseph's Hospital

Critical Access Hospitals · Highland, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number141336

Location12866 Troxler AvenueHighland, IL 62249 · Madison County

Emergency services

Fayette County Hospital

Critical Access Hospitals · Vandalia, IL

OwnershipVoluntary non-profit - Other

CMS Certification Number141346

Location650 W Taylor StVandalia, IL 62471 · Fayette County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62269 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$131.14 typical visit price

range $56.28 – $173.35

Typical copayment $32.78 (range $14.07 – $43.33)

Most-billed visit code 99204

Established Patient

$70.42 typical visit price

range $17.51 – $139.99

Typical copayment $17.60 (range $4.37 – $34.99)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.61/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

85.17

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

THOMAS B. CAHILL JR. MD

Internal Medicine (Cardiovascular Disease)