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Compare the published Medicare service mix of John Ward Macarthur, M.D. with clinicians in the same registry specialty: General Surgery · Thoracic Surgery (CMS).

PALO ALTO, CA · Exact areaEdit location

2024 published service data · 20 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Yi-Ping Joseph Woo, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Palo Alto, CA

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 on heart-lung machine (33405)
64%Service-mix similarityView profile →

Anson Michael Lee, M.D.

Cardiac Surgery (CMS) · Palo Alto, CA

Shared published services
2 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Harvest of vein using an endoscope (33508)
36%Service-mix similarityView profile →

Pei H Tsau, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Palo Alto, CA

Shared published services
3 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
36%Service-mix similarityView profile →

Maria Elizabeth Currie, MD, PHD

Cardiac Surgery (CMS) · Palo Alto, CA

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)
  • Coronary artery bypass using vein or artery graft, 2 grafts (33518)
31%Service-mix similarityView profile →

Jack H Boyd, MD

General Surgery · Thoracic Surgery (CMS) · Palo Alto, CA

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)
  • Coronary artery bypass using vein or artery graft, 2 grafts (33518)
31%Service-mix similarityView profile →

Patpilai Kasinpila, M.D.

Cardiac Surgery · Thoracic Surgery (CMS) · Palo Alto, CA

Shared published services
2 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Coronary artery bypass using vein or artery graft, 2 grafts (33518)
28%Service-mix similarityView profile →

Yasuhiro Shudo, M.D.

Cardiac Surgery (CMS) · Palo Alto, CA

Shared published services
1 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
26%Service-mix similarityView profile →

Michael Peter Fischbein, M.D., PHD

General Surgery · Thoracic Surgery (CMS) · Palo Alto, CA

Shared published services
1 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
18%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.