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Compare the published Medicare service mix of Mark Francis Buettner, DO with clinicians in the same registry specialty: Emergency Medicine.

IA · Exact areaEdit location

2024 published service data · 274 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Joseph Kwofie, DO

Emergency Medicine · Waterloo, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
81%Service-mix similarityView profile →

Shawn Johnson, DO

Emergency Medicine · Des Moines, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
71%Service-mix similarityView profile →

Robert Wallace Graham, D.O.

Emergency Medicine · Council Bluffs, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
71%Service-mix similarityView profile →

James Stewart Gill, MD

Emergency Medicine · Iowa City, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
71%Service-mix similarityView profile →

James Cummings, MD

Emergency Medicine · Des Moines, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
71%Service-mix similarityView profile →

Philip Barns, MD

Emergency Medicine · Iowa City, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
71%Service-mix similarityView profile →

Trinh T.h. Le, M.D.

Emergency Medicine · Oskaloosa, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
71%Service-mix similarityView profile →

Philip Scott Zimmerman, M.D.

Emergency Medicine · Dubuque, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
71%Service-mix similarityView profile →

Holly Healey, DO

Emergency Medicine · Des Moines, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
71%Service-mix similarityView profile →

Sean Matthew Wetjen, MD

Emergency Medicine · Dubuque, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
70%Service-mix similarityView profile →

Chad Torstenson, MD

Emergency Medicine · Des Moines, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
70%Service-mix similarityView profile →

Daniel Gillett Miller, M.D.

Emergency Medicine · Iowa City, IA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
  • Emergency department visit with high level of medical decision making (99285)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
70%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.