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Compare the published Medicare service mix of Keith Bertram Quencer, MD with clinicians in the same registry specialty: Interventional Radiology (CMS).

PORTLAND, OR · Exact areaEdit location

2024 published service data · 26 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Sidhartha Tavri, M.D.

Interventional Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
  • Ultrasonic guidance for blood vessel access (76937)
56%Service-mix similarityView profile →

Claire Kaufman, M.D.

Interventional Radiology (CMS) · Portland, OR

Shared published services
2 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasonic guidance for blood vessel access (76937)
56%Service-mix similarityView profile →

Marc Michael Delrosario Lim, M.D.

Interventional Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Review by radiologist of abdominal artery image (75726)
56%Service-mix similarityView profile →

Yoon-Jin Kim

Diagnostic Radiology · Interventional Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Review by radiologist of abdominal artery image (75726)
  • Ultrasonic guidance for blood vessel access (76937)
55%Service-mix similarityView profile →

Shawdon Molavi, M.D.

Interventional Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
  • Ultrasonic guidance for blood vessel access (76937)
48%Service-mix similarityView profile →

Spencer Degerstedt, MD

Interventional Radiology (CMS) · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
46%Service-mix similarityView profile →

Mary Marcelle Costantino, MD

Interventional Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasonic guidance for blood vessel access (76937)
39%Service-mix similarityView profile →

Brian Park

Interventional Radiology (CMS) · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
37%Service-mix similarityView profile →

Tanay Patel, M.D.

Interventional Radiology (CMS) · Portland, OR

Shared published services
2 shared services · view billing descriptions
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
  • Ultrasonic guidance for blood vessel access (76937)
35%Service-mix similarityView profile →

Jonathan Daniel Steinberger, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
  • Ultrasonic guidance for blood vessel access (76937)
  • Insertion of tube into abdominal, pelvic, or leg artery, initial third order branch (36247)
34%Service-mix similarityView profile →

Moses Azubuike, M.D

Diagnostic Radiology · Interventional Radiology (CMS) · Portland, OR

Shared published services
2 shared services · view billing descriptions
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
  • Ultrasonic guidance for blood vessel access (76937)
33%Service-mix similarityView profile →

Yilun Koethe, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
  • Ultrasonic guidance for blood vessel access (76937)
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.