Jonathan A. Hammond Jr., MD
NPI 1235115965ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Hartford, CT
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) in Hartford, Connecticut, trained at Harvard Medical School (class of 1984). Medicare paid $133,540 for services to 66 patients in 2024. Abbott Laboratories was the largest of 2 companies reporting payments in 2025, $209.41 in all, mostly food and beverage.
Overview
| NPI | 1235115965 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 15, 2005 |
| Last updated in NPPES | Sep 12, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 027604 | CT |
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 - Cardiac Surgery (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 66 |
|---|---|
| Services billed | 180 across 39 procedure codes |
| Paid by Medicare | $133,540 |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Cardiac Surgery |
| Secondary specialties | Thoracic Surgery |
Medical groups
- Hartford Healthcare Medical Group Specialists PLLCBridgeport, CT · 1,588 clinicians
- University of Connecticut Health CenterFarmington, CT · 639 clinicians
Hospital affiliations
- Hartford HospitalHartford, CT
- John Dempsey Hospital of the University of ConnectFarmington, CT
Other facilities
- Hartford Healthcare at HomeHome health agency · East Hartford, CT
Industry payments (Open Payments)
- 2025$209.41 · 6 payments from 2 companies
- 2024$889.59 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $193.26 | 5 |
| Lemaitre Vascular, Inc. | $16.15 | 1 |
What the 2025 payments were for
- Food and Beverage$209.41 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 cardiothoracic surgeons in Hartford · All cardiothoracic surgeons in Connecticut