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Compare the published Medicare service mix of Nathan Robertson, MD with clinicians in the same registry specialty: Internal Medicine.

SAINT LOUIS, MO · Exact areaEdit location

2024 published service data · 413 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Adam Alexander Douglas

Internal Medicine · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
100%Service-mix similarityView profile →

Umesh I Gandhi, MD

Internal Medicine · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
93%Service-mix similarityView profile →

Jennifer Bockerstett, DO

Internal Medicine · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
93%Service-mix similarityView profile →

Conor Mccartney, M.D.

Internal Medicine · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
93%Service-mix similarityView profile →

Michael Robert Patrick Peterson, MD

Internal Medicine · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
93%Service-mix similarityView profile →

Kent Buxton, MD

Internal Medicine · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
93%Service-mix similarityView profile →

Matthew Pettis, MD

Internal Medicine · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
93%Service-mix similarityView profile →

Ayesha Sarwar, MD

Internal Medicine · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
93%Service-mix similarityView profile →

Alexandre Lacasse, M.D., M.SC.

Internal Medicine · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
93%Service-mix similarityView profile →

Mark Bigg

Internal Medicine · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
93%Service-mix similarityView profile →

Musi Ye, M.D.

Internal Medicine · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
92%Service-mix similarityView profile →

Munier Abraham El-Beck, M.D.

Internal Medicine · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
92%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.