Physician Profile
Gansevoort H. Dunnington, M.D.
Unclaimed ProfileAbout Dr. Dunnington
Gansevoort H. Dunnington, M.D. practices cardiac surgery in Saint Helena, CA. Gansevoort is a 1997 graduate of Virginia Commonwealth University, School of Medicine. Gansevoort is also listed as specializing in thoracic surgery (cardiothoracic). According to Medicare claims data, Gansevoort cared for 468 Medicare patients across 474 services. 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, telephone medical discussion with physician, 21-30 minutes, and initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes. The provider's National Provider Identifier (NPI) is 1336335140.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (707) 963-6445
- Email not available
Practice Locations
10 WOODLAND RD
Saint Helena, CA 94574
Procedures Most Often Billed to Medicare
474 services · 468 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Extensive reconstruction of upper heart chamber and alteration of electrical pathway using an endoscope | Procedure | 33266 |
44 | Too few peers to compare |
| Replacement of aortic valve through the skin and femoral artery | Procedure | 33361 |
37 | More often than most peers in Cardiac Surgery |
| Coronary artery bypass using artery graft, 1 graft | Procedure | 33533 |
25 | More often than most peers in Cardiac Surgery |
| Harvest of vein using an endoscope | Procedure | 33508 |
21 | As often as other peers in Cardiac Surgery |
| Partial destruction and reconstruction of right upper heart chamber | Procedure | 33257 |
20 | More often than most peers in Cardiac Surgery |
| Extensive destruction and reconstruction of right upper heart chamber on heart-lung machine | Procedure | 33259 |
16 | More often than most peers in Cardiac Surgery |
| Replacement of aortic valve on heart-lung machine | Procedure | 33405 |
14 | As often as other peers in Cardiac Surgery |
| Coronary artery bypass using vein or artery graft, 2 grafts | Procedure | 33518 |
12 | Less often than most peers in Cardiac Surgery |
| Radical reconstruction of mitral valve on heart-lung machine | Procedure | 33427 |
11 | Less often than most peers in Cardiac Surgery |
| Routine electrocardiogram (ecg) using at least 12 leads with tracing | Treatment | 93005 |
24 | Too few peers to compare |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Virginia Commonwealth University, School of Medicine 6
Other providers in the same specialty who trained at the same institution.
More connections — 12 related providers in 2 groups
Class of 1997 at Virginia Commonwealth University, School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Extensive reconstruction of upper heart chamber and alteration of electrical pathway using an endoscope 4
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Gansevoort H. Dunnington?
Gansevoort H. Dunnington is a cardiac surgeon in Saint Helena, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiac Surgery”.
NPI registry
What is Gansevoort H. Dunnington's address?
Gansevoort H. Dunnington is listed at 10 Woodland Rd, Saint Helena, CA 94574. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Gansevoort H. Dunnington?
The number on file is (707) 963-6445. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Gansevoort H. Dunnington's NPI number?
Gansevoort H. Dunnington's National Provider Identifier is 1336335140. 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
Where did Gansevoort H. Dunnington train?
Gansevoort H. Dunnington attended Virginia Commonwealth University, School of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Gansevoort H. Dunnington been practicing?
Gansevoort H. Dunnington has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What procedures does Gansevoort H. Dunnington perform?
According to Medicare billing data, Gansevoort H. Dunnington performs procedures including extensive reconstruction of upper heart chamber and alteration of electrical pathway using an endoscope, replacement of aortic valve through the skin and femoral artery and coronary artery bypass using artery graft, 1 graft; provides treatments such as routine electrocardiogram using at least 12 leads with tracing and heart rhythm review and interpretation of continous external ekg over 8-15 days, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Gansevoort H. Dunnington confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Gansevoort H. Dunnington. If this is you, claiming it is free.
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