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Compare the published Medicare service mix of Geoffrey R Connors, MD with clinicians in the same registry specialty: Critical Care (Intensivists) · Pulmonary Disease (CMS).

AURORA, CO · Exact areaEdit location

2024 published service data · 23 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Arun Kannappan, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Aurora, CO

Shared published services
3 shared services · view billing descriptions
  • Test to measure rate of airflow (94375)
  • Test to examine how well the lungs exchange gases (94729)
  • Test to determine lung volumes using sensors (94726)
90%Service-mix similarityView profile →

Jeffrey M Sippel, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Aurora, CO

Shared published services
3 shared services · view billing descriptions
  • Test to measure rate of airflow (94375)
  • Test to examine how well the lungs exchange gases (94729)
  • Test to determine lung volumes using sensors (94726)
71%Service-mix similarityView profile →

Trevor Christian Steinbach, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Aurora, CO

Shared published services
3 shared services · view billing descriptions
  • Test to measure rate of airflow (94375)
  • Test to examine how well the lungs exchange gases (94729)
  • Test to determine lung volumes using sensors (94726)
71%Service-mix similarityView profile →

Brian Ahn

Internal Medicine (CMS) · Aurora, CO

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Test to measure expiratory airflow and volume changes before and after medication administration (94060)
61%Service-mix similarityView profile →

Fernando Holguin, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Aurora, CO

Shared published services
3 shared services · view billing descriptions
  • Test to measure rate of airflow (94375)
  • Test to examine how well the lungs exchange gases (94729)
  • Test to determine lung volumes using sensors (94726)
60%Service-mix similarityView profile →

Jennifer Taylor, M.D.

Internal Medicine (CMS) · Aurora, CO

Shared published services
3 shared services · view billing descriptions
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Test to measure expiratory airflow and volume changes before and after medication administration (94060)
49%Service-mix similarityView profile →

James Lavelle, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Aurora, CO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Critical care, first 30-74 minutes (99291)
46%Service-mix similarityView profile →

Mark E. Mikkelsen, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Aurora, CO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Critical care, first 30-74 minutes (99291)
45%Service-mix similarityView profile →

Sunad Rangarajan, MD, DNB

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Aurora, CO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Critical care, first 30-74 minutes (99291)
44%Service-mix similarityView profile →

Christiaan Anderson Rees, MD, PHD

Critical Care (Intensivists) (CMS) · Aurora, CO

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
41%Service-mix similarityView profile →

Stephen Malkoski, MD

Critical Care (Intensivists) · Internal Medicine (CMS) · Aurora, CO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Critical care, first 30-74 minutes (99291)
40%Service-mix similarityView profile →

Todd Bull, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Aurora, CO

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
40%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.