Stephanie Marshall, DO
NPI 1124002738 · Cardiovascular Disease Physician · Merrillville, IN
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Marshall, DO is a Cardiovascular Disease Physician provider in Merrillville, IN (NPI 1124002738).
Provider details
- NPI number
- 1124002738
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 036-099475 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,129 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 519 | $111 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 166 | $12 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 85 | $115 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 79 | $124 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 75 | $64 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 91 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 305 | 90 |
| Lisinopril | 227 | 71 |
| Amlodipine Besylate | 214 | 58 |
| Furosemide | 190 | 64 |
| Metoprolol Succinate | 183 | 59 |
| Apixabanbrand: Eliquis | 159 | 42 |
| Metoprolol Tartrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$571 across 32 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
Registry dates
- Enumerated
- 2005-12-06
- Last updated
- 2024-02-27
- Certified
- 2024-02-27
Frequently asked questions
- What is Stephanie Marshall's NPI number?
- Stephanie Marshall's National Provider Identifier (NPI) is 1124002738, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Marshall's specialty?
- Stephanie Marshall is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Stephanie Marshall located?
- Stephanie Marshall's practice location on file with NPPES is 8684 Connecticut St Ste a, Merrillville, IN 46410-5581.
- What is Stephanie Marshall's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Marshall is (192) 472-8990.
- Does Stephanie Marshall accept Medicare?
- Stephanie Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Marshall's NPI active?
- Yes — Stephanie Marshall's NPI (1124002738) is active in the NPPES registry as of the last update on 2024-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.