Physician Profile
Jonathan A. Hammond, MD practices thoracic surgery (cardiothoracic) in Hartford, CT. Jonathan is a 1984 graduate of Harvard Medical School. Medicare claims data shows Jonathan provided 108 services to 108 patients. The services billed most often include new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more, coronary artery bypass using artery graft, 1 graft, and harvest of vein using an endoscope.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
85 SEYMOUR ST SUITE 725
Hartford, CT 06106
Within Thoracic Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Airway
Chest tumors
Chest wall
Diaphragm
Esophagus
Esophagus and stomach
Heart lining
Infection
Lung
Lung cancer
Lung conditions
Nerves
Nerves and blood vessels
Neuromuscular
Pleural disease
Sweating disorders
Trauma
Vascular
Airway
Airway surgery
Chest tumors
Chest wall
Chest wall surgery
Diagnostic tests
Diagnostics
Diaphragm
Diaphragm surgery
Emphysema
Esophagus
Esophagus surgery
Fluid drainage
Heart lining
Lung surgery
Nerves
Pleural disease
Robotic surgery
Surgical approach
Sweat surgery
Transplant
Trauma
108 services · 108 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Coronary artery bypass using artery graft, 1 graft | Procedure | 33533 |
29 |
| Harvest of vein using an endoscope | Procedure | 33508 |
19 |
| Coronary artery bypass using vein or artery graft, 2 grafts | Procedure | 33518 |
14 |
| Replacement of aortic valve on heart-lung machine | Procedure | 33405 |
14 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
32 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Hammond is a thoracic surgery (cardiothoracic) in Hartford, CT. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Hammond is listed at 85 Seymour St Suite 725, Hartford, CT 06106. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (860) 524-5905. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Hammond's National Provider Identifier is 1235115965. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Hammond attended Harvard Medical School, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
Dr. Hammond has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Hammond performs procedures including coronary artery bypass using artery graft, 1 graft, harvest of vein using an endoscope and coronary artery bypass using vein or artery graft, 2 grafts, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hammond. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.