Mark P. Stuart, D.O.
NPI 1447243977ActiveIndividual· Internal Medicine, Cardiovascular Disease· Winter Garden, FL
Internal Medicine, Cardiovascular Disease (D.O.) in Winter Garden, Florida, trained at Michigan State University College of Osteopathic Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $211,222 for 1,126 claims, against $70,383 paid for services in 2024. Alnylam Pharmaceuticals Inc. was the largest of 7 companies reporting payments in 2025, $197.58 in all, mostly food and beverage.
Overview
| NPI | 1447243977 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Aug 30, 2005 |
| Last updated in NPPES | Jan 6, 2023 |
| Certified by provider | Jan 6, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | OS11927 | FL |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | MS012107 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Interventional Cardiology (FL); Practitioner - Cardiovascular Disease (Cardiology) (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 294 |
|---|---|
| Services billed | 1,143 across 25 procedure codes |
| Paid by Medicare | $70,383 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,126 · 2,792 30-day fills |
|---|---|
| Patients | 246 |
| Total drug cost | $211,222 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Interventional Cardiology |
Medical group
- Orlando Health Medical Group IncWindermere, FL · 2,287 clinicians
Hospital affiliations
- Orlando HealthOrlando, FL
- Orlando Health South Lake HospitalClermont, FL
- Orlando Health-Health Central HospitalOcoee, FL
Industry payments (Open Payments)
- 2025$197.58 · 8 payments from 7 companies
- 2024$135.00 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alnylam Pharmaceuticals Inc. | $68.40 | 2 |
| Kestra Medical Technology Services, Inc. | $30.76 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $25.87 | 1 |
| Pfizer Inc. | $22.71 | 1 |
| Lilly USA, LLC | $19.22 | 1 |
What the 2025 payments were for
- Food and Beverage$197.58 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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