Alexander Nissen
NPI 1730540386ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Bethesda, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) with Medstar Medical Group II LLC and 1 other group, practicing in Bethesda, Maryland. Enrolled in Medicare as practitioner - cardiac surgery. Medtronic, Inc. was the largest of 4 companies reporting payments in 2025, $1,176 in all, mostly food and beverage. Lists Medstar Washington Hospital Center as a hospital affiliation.
Overview
| NPI | 1730540386 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 10, 2016 |
| Last updated in NPPES | Aug 20, 2025 |
| Certified by provider | Aug 20, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 0101263081 | VA |
| General Practice | 208D00000X | 0101263081 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiac Surgery (DC) |
|---|
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Cardiac Surgery |
| Telehealth | Offers telehealth |
Medical groups
- Medstar Medical Group II LLCWashington, DC · 3,767 clinicians
- Medstar Heart Institute LLCBaltimore, MD · 301 clinicians
Hospital affiliation
- Medstar Washington Hospital CenterWashington, DC
Other facilities
- Medstar Health Home CareHome health agency · Hyattsville, MD
Industry payments (Open Payments)
- 2025$1,176 · 14 payments from 4 companies
- 2024$12,752 · 22 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $933.98 | 10 |
| Edwards Lifesciences Corporation | $179.74 | 2 |
| Abiomed | $36.77 | 1 |
| Medical Device Business Services, Inc. | $25.69 | 1 |
What the 2025 payments were for
- Food and Beverage$758.73 · 12 payments
- Travel and Lodging$417.45 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Thoracic Surgery (Cardiothoracic Vascular Surgery) providers in Bethesda
- 1871777995
- 1952595811
- 1871578534
- 1902992985
- 1932278983
- 1558682054
- 1003832395
- 1669472841
- 1972545440
- 1609230176
- 1750372231
- 1033298468
All Thoracic Surgery (Cardiothoracic Vascular Surgery) providers in Maryland →