Nathan Michael Markwart, D.O.
NPI 1265774574ActiveIndividual· Internal Medicine, Critical Care Medicine· Boca Raton, FL
Internal Medicine, Critical Care Medicine (D.O.) with Critical Care Associates of South Florida LLC, practicing in Boca Raton, Florida. Medicare paid $98,541 for services to 301 patients in 2024. Lists Bethesda Hospital East and 1 other hospital as hospital affiliations.
Overview
| NPI | 1265774574 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Mar 25, 2013 |
| Last updated in NPPES | Sep 3, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | OS 13310 | FL |
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 - Critical Care (Intensivists) (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 301 |
|---|---|
| Services billed | 622 across 12 procedure codes |
| Paid by Medicare | $98,541 |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Critical Care (Intensivists) |
Medical group
- Critical Care Associates of South Florida LLCBoynton Beach, FL · 21 clinicians
Hospital affiliations
- Bethesda Hospital EastBoynton Beach, FL
- Boca Raton Regional HospitalBoca Raton, FL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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