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Compare the published Medicare service mix of Marc A Zenoniani, MD with clinicians in the same registry specialty: Internal Medicine.

OR · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Tarris Webber, D.O.

Internal Medicine · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
79%Service-mix similarityView profile →

Evan Bilstrom, MD

Internal Medicine · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
75%Service-mix similarityView profile →

Usman Ahmad, D.O.

Internal Medicine · Clackamas, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
72%Service-mix similarityView profile →

Zoe Mccracken-Schroeder, MD

Internal Medicine · Eugene, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
68%Service-mix similarityView profile →

Jared Anthony Head, MD

Internal Medicine · Bend, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
68%Service-mix similarityView profile →

Philip Reilly

Internal Medicine · Bend, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
65%Service-mix similarityView profile →

James F Pierce, DO

Internal Medicine · Corvallis, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
63%Service-mix similarityView profile →

Steven Shanab, MD

Internal Medicine · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
57%Service-mix similarityView profile →

Alanna Mozena, MD

Internal Medicine · Bend, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
52%Service-mix similarityView profile →

Minh-Thu Thuy Duong, D.O.

Internal Medicine · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
52%Service-mix similarityView profile →

Orishebawo Popoola, MD

Internal Medicine · Bend, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
50%Service-mix similarityView profile →

Kieran Fredrick Kubac, MD

Internal Medicine · Klamath Falls, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
47%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.