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Compare the published Medicare service mix of Michael Joseph Kilbourne, M.D. with clinicians in the same registry specialty: Cardiac Surgery · Thoracic Surgery (CMS).

PORTLAND, OR · Exact areaEdit location

2024 published service data · 21 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Mark Alan Martin, MD

Thoracic Surgery (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Harvest of vein using an endoscope (33508)
73%Service-mix similarityView profile →

Kai Erik Engstad, M.D.

Thoracic Surgery (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Coronary artery bypass using artery graft, 1 graft (33533)
60%Service-mix similarityView profile →

Pasala Sankaran Ravichandran, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Replacement of aortic valve through the skin and femoral artery (33361)
58%Service-mix similarityView profile →

Torin Patrick Fitton, M.D.

Cardiac Surgery · Thoracic Surgery (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
53%Service-mix similarityView profile →

Robert Adams Dubose, MD

General Surgery · Thoracic Surgery (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Replacement of aortic valve through the skin and femoral artery (33361)
51%Service-mix similarityView profile →

Gary Y Ott, MD

Thoracic Surgery (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
48%Service-mix similarityView profile →

Thomas Alexis Molloy, MD

Thoracic Surgery (CMS) · Portland, OR

Shared published services
2 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Coronary artery bypass using artery graft, 1 graft (33533)
43%Service-mix similarityView profile →

Eric Blaine Kirker, MD

Thoracic Surgery (CMS) · Portland, OR

Shared published services
2 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Replacement of aortic valve through the skin and femoral artery (33361)
40%Service-mix similarityView profile →

Paul Henry Schipper, MD

Thoracic Surgery (CMS) · Portland, OR

Shared published services
2 shared services · view billing descriptions
  • Telephone medical discussion with physician, 21-30 minutes (99443)
  • Removal of lymph nodes of chest cavity using an endoscope (32674)
39%Service-mix similarityView profile →

Shane Patrick Smith, M.D.

Thoracic Surgery (CMS) · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
33%Service-mix similarityView profile →

Julie W Doberne, M.D., PH.D.

Cardiac Surgery (CMS) · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
33%Service-mix similarityView profile →

Areo Saffarzadeh, M.D.

Thoracic Surgery (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Telephone medical discussion with physician, 21-30 minutes (99443)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Removal of lymph nodes of chest cavity using an endoscope (32674)
32%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.