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Compare the published Medicare service mix of Christopher Robert Johnston, DO with clinicians in the same registry specialty: Neurology (CMS).

PHILADELPHIA, PA · Exact areaEdit location

2024 published service data · 70 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Alan Steinbach, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
85%Service-mix similarityView profile →

Eileen H Kim, MD

Hospitalist · Internal Medicine (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
74%Service-mix similarityView profile →

Jaber M Monla-Hassan, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
67%Service-mix similarityView profile →

Robert C Hilton, M.D.

Pulmonary Disease (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
63%Service-mix similarityView profile →

Andrew James Paris, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Philadelphia, PA

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
61%Service-mix similarityView profile →

Marissa Babnew

Internal Medicine (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
60%Service-mix similarityView profile →

Lleras A Samuels, MD

Critical Care (Intensivists) · Internal Medicine (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
59%Service-mix similarityView profile →

David Oxman, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Philadelphia, PA

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
58%Service-mix similarityView profile →

Thuonghien Vu Tran, D.O.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
56%Service-mix similarityView profile →

Vivek N Ahya, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
51%Service-mix similarityView profile →

Katherine Rinaldi Courtright, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Philadelphia, PA

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
50%Service-mix similarityView profile →

Trushil Gaurav Shah, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
50%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.