Physician Profile
Stephen K. Kwan, M.D. practices thoracic surgery in Marshfield, WI. Stephen is also listed as specializing in thoracic surgery (cardiothoracic). According to Medicare claims data, Stephen cared for 146 Medicare patients across 153 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
1000 N OAK AVE
Marshfield, WI 54449
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
153 services · 146 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Coronary artery bypass using artery graft, 1 graft | Procedure | 33533 |
34 |
| Coronary artery bypass using vein or artery graft, 2 grafts | Procedure | 33518 |
15 |
| Replacement of aortic valve through the skin and femoral artery | Procedure | 33361 |
14 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
37 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
29 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
24 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Stephen K. Kwan is a thoracic surgeon in Marshfield, WI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Thoracic Surgery”.
NPI registry
Stephen K. Kwan is listed at 1000 N Oak Ave, Marshfield, WI 54449. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (715) 387-5511. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Stephen K. Kwan's National Provider Identifier is 1518052356. 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
Stephen K. Kwan attended Other, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
Stephen K. Kwan has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Stephen K. Kwan performs procedures including coronary artery bypass using artery graft, 1 graft, coronary artery bypass using vein or artery graft, 2 grafts and replacement of aortic valve through the skin and femoral artery, 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 Stephen K. Kwan. 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.