Scott Marrus, MD
NPI 1063578284 · Cardiovascular Disease Physician · O Fallon, IL
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Scott Marrus, MD is a Cardiovascular Disease Physician provider in O Fallon, IL (NPI 1063578284).
Provider details
- NPI number
- 1063578284
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2011021984 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,795 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 1,027 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 719 | $129 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 400 | $68 |
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 | 229 | $87 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System Or Implantable Defibrillator System, Remote Up to 90 Days93296 | 202 | $20 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System, Remote Up to 90 Days |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 46 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 852 | 257 |
| Atorvastatin Calcium | 696 | 192 |
| Metoprolol Succinate | 676 | 214 |
| Apixabanbrand: Eliquis | 648 | 144 |
| Amlodipine Besylate | 377 | 126 |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er | 361 | 142 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$314 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 1 Barnes Jewish Hospital PlzSaint Louis, MO 63110-1003Phone: (314) 362-1291Fax: (314) 362-4278
- 1 Barnes Jewish Hospital PlzSaint Louis, MO 63110-1003Phone: (314) 362-1291Fax: (314) 362-4278
Registry dates
- Enumerated
- 2006-12-29
- Last updated
- 2021-12-21
- Certified
- 2021-12-21
Frequently asked questions
- What is Scott Marrus's NPI number?
- Scott Marrus's National Provider Identifier (NPI) is 1063578284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Scott Marrus's specialty?
- Scott Marrus is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Scott Marrus located?
- Scott Marrus's practice location on file with NPPES is Three Saint Elizabeth Blvd Ste 2800, O Fallon, IL 62269-1282.
- What is Scott Marrus's phone number?
- The practice phone number listed in the NPPES registry for Scott Marrus is (618) 233-6044.
- Does Scott Marrus accept Medicare?
- Scott Marrus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Scott Marrus's NPI active?
- Yes — Scott Marrus's NPI (1063578284) is active in the NPPES registry as of the last update on 2021-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.