Britt H. Tonnessen, MD
NPI 1073567772ActiveIndividual· Surgery, Vascular Surgery· New Haven, CT
Surgery, Vascular Surgery (MD) in New Haven, Connecticut, trained at Mayo Medical School (class of 1999). Mostly services rather than prescriptions: Medicare paid $66,630 for 248 patients in 2024, with only 38 Part D claims. Medtronic, Inc. reported $425.81 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1073567772 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 19, 2006 |
| Last updated in NPPES | Jan 23, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | 62276 | CT |
| Surgery, Vascular Surgery | 2086S0129X | TL32882 | SC |
| Surgery, Vascular Surgery | 2086S0129X | 32882 | SC |
| Surgery, Vascular Surgery | 2086S0129X | 282289 | NY |
| Surgery, Vascular Surgery | 2086S0129X | MD.025529 | LA |
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 - Vascular Surgery (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 248 |
|---|---|
| Services billed | 524 across 75 procedure codes |
| Paid by Medicare | $66,630 |
Part D prescriptions in 2024
| Prescriptions (claims) | 38 · 72 30-day fills |
|---|---|
| Patients | 18 |
| Total drug cost | $13,178 |
| Generic share | 61% of claims |
Education and affiliations
| Medical school | Mayo Medical School |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Vascular Surgery |
| Telehealth | Offers telehealth |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Yale-New Haven HospitalNew Haven, CT
Other facilities
- Yale New Haven Health - Health at HomeHome health agency · Milford, CT
Industry payments (Open Payments)
- 2025$425.81 · 6 payments from 1 company
- 2024$351.46 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $425.81 | 6 |
What the 2025 payments were for
- Food and Beverage$425.81 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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