Jason Zakko, M.D.
Jason Zakko, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Hartford, CT, registered under NPI 1003201377.
Getting there
Here is what surrounds this office in Hartford, based on OpenStreetMap data collected Sep 2, 2026. Parking is available about 0.20 mi away. The nearest transit stop is 0.31 mi away.
Getting here and what is nearby
Parking 368 ft ~2 min
80 Seymour Street, Hartford 06106
Parking 734 ft ~3 min
85 Seymour Street, Hartford 06106
Parking 0.20 mi ~4 min
500 Hudson Street, Hartford 06106
Restaurant Dunkin' 0.20 mi ~4 min
Restaurant McDonald's 0.26 mi ~6 min
172 Washington Street, Hartford 06106
Mo-Su 07:00-21:00
Transit 0.31 mi ~7 min
Grocery C-Town 0.32 mi ~7 min
165 Wethersfield Avenue, Hartford 06114
Convenience Noble 0.43 mi ~9 min
Gas station Noble Gas + EV 0.43 mi ~9 min
Restaurant Aqui Me Quedo Restaurant 0.49 mi ~10 min
Grocery Viva Mexico Grocery Store 0.49 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 80303 | CT | Thoracic Surgery (Cardiothoracic Vascular… primary |
This provider holds licence 80303 issued in CT. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Thoracic Surgery
- PAC ID
- 1254631641
- Enrollment ID
- I20250613000943
Medicare enrolment is recorded as approved under the provider type Practitioner - Thoracic Surgery. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Thoracic Surgery (Cardiothoracic Vascular Surgery) covers
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty. NUCC Health Care Provider Taxonomy, code 208G00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003201377 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 2, 2015 |
| Last updated | Oct 8, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | M.D. |
| Practice address |
80 SEYMOUR STREET CARDIAC SURGERY Hartford, CT 06102 (860) 696-5520 |
| Mailing address |
1290 SILAS DEANE HWY HHC-CVO Wethersfield, CT 06109 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 2 | 0 | 1 | 3 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 0 | 2 | 3 | 5 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.