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Compare the published Medicare service mix of Stephen C Holmes, MD with clinicians in the same registry specialty: Anesthesiology.

PORTLAND, OR · Exact areaEdit location

2024 published service data · 228 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jan-Pablo Georg Lewis Kollmar, MD

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
84%Service-mix similarityView profile →

Elliot Harmon, MD

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
77%Service-mix similarityView profile →

Tammy Mai, D.O.

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
70%Service-mix similarityView profile →

Elissa Chen Pirocanac, MD

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
67%Service-mix similarityView profile →

Darin E Brandt, DO

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
65%Service-mix similarityView profile →

Matthew Newton Doran

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
63%Service-mix similarityView profile →

Brian David Tompkins, MD

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
63%Service-mix similarityView profile →

Richard L Shih, M.D.

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
62%Service-mix similarityView profile →

Estuardo Jose Saravia Fernandez, M.D.

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Insertion of non-tunneled central venous tube for infusion (5 years or older) (36556)
53%Service-mix similarityView profile →

Tera Emily Cushman, M.D.

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Insertion of non-tunneled central venous tube for infusion (5 years or older) (36556)
52%Service-mix similarityView profile →

Izumi Harukuni, M.D.

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Insertion of non-tunneled central venous tube for infusion (5 years or older) (36556)
52%Service-mix similarityView profile →

Jordan Chiarchiaro, M.D.

Anesthesiology · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
52%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.