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Compare the published Medicare service mix of Christopher Andrew Yasenchak, M.D. with clinicians in the same registry specialty: Hematology/Oncology (CMS).

EUGENE, OR · Exact areaEdit location

2024 published service data · 6 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Matthew Lonergan, MD

Hematology/Oncology (CMS) · Eugene, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
86%Service-mix similarityView profile →

James Edward Butrynski, M.D.

Medical Oncology (CMS) · Eugene, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
83%Service-mix similarityView profile →

Luke Benjamin Fletcher, MD

Hematology/Oncology · Internal Medicine (CMS) · Eugene, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
82%Service-mix similarityView profile →

Miho Teruya Dougherty, M.D.

Hematology/Oncology (CMS) · Eugene, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
82%Service-mix similarityView profile →

Jae H Lee, MD

Medical Oncology (CMS) · Eugene, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
54%Service-mix similarityView profile →

Glenn S Buchanan, MD

Medical Oncology (CMS) · Eugene, OR

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
33%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.