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Compare the published Medicare service mix of Chase Andrew Baxter, DO with clinicians in the same registry specialty: Internal Medicine · Pulmonary Disease (CMS).

ALTON, IL · 25 milesEdit location
Within 25 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 83 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Tanner Wallen, DO

Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
86%Service-mix similarity~17.7 milesView profile →

George E Tzelepis, MD

Specialty details in registry · Maryville, IL

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
85%Service-mix similarity~16.9 milesView profile →

Subramanian Paranjothi, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
81%Service-mix similarity~23.7 milesView profile →

Johnathan Schnee Fagg, MD

Internal Medicine · Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
77%Service-mix similarity~23.7 milesView profile →

Adrian Shifren, MD

Internal Medicine · Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
75%Service-mix similarity~20.8 milesView profile →

Craig Karpman, MD

Internal Medicine · Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
74%Service-mix similarity~23.7 milesView profile →

Keith Timothy Ferguson, M.D.

Internal Medicine · Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
72%Service-mix similarity~20.8 milesView profile →

Zachary Thomas Lonjers, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
71%Service-mix similarity~20.8 milesView profile →

Edward Charbek, MD

Internal Medicine · Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
71%Service-mix similarity~20.7 milesView profile →

Dani Tazbaz, MD

Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
71%Service-mix similarity~21.5 milesView profile →

Tonya D Russell, MD

Internal Medicine · Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
68%Service-mix similarity~20.8 milesView profile →

Nadeem Ahmed, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Test to determine lung volumes using sensors (94726)
  • Test to examine how well the lungs exchange gases (94729)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
67%Service-mix similarity~23.7 milesView 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 approximate distance 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.