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Compare the published Medicare service mix of Adam Derrick Richardson, MD with clinicians in the same registry specialty: Emergency Medicine (CMS).

CHARLOTTESVILLE, VA · Exact areaEdit location

2024 published service data · 67 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ivonne Valentina Lollett, MD

Hospitalist · Internal Medicine (CMS) · Charlottesville, VA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
69%Service-mix similarityView profile →

Joseph Kyle Swingle, M.D.

Hospitalist (CMS) · Charlottesville, VA

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)
  • Critical care, first 30-74 minutes (99291)
  • Advance care planning, first 30 minutes (99497)
68%Service-mix similarityView profile →

David Fink, MD

Internal Medicine (CMS) · Charlottesville, VA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Critical care, first 30-74 minutes (99291)
57%Service-mix similarityView profile →

Comfort Obiajulu Elumogo

Internal Medicine (CMS) · Charlottesville, VA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
57%Service-mix similarityView profile →

William S Knight, MD

Hospitalist (CMS) · Charlottesville, VA

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)
  • Critical care, first 30-74 minutes (99291)
  • Advance care planning, first 30 minutes (99497)
56%Service-mix similarityView profile →

Mark Joseph Mandichak, MD

Internal Medicine (CMS) · Charlottesville, VA

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)
  • Critical care, first 30-74 minutes (99291)
  • Advance care planning, first 30 minutes (99497)
49%Service-mix similarityView profile →

Calvin X Geng, MD

Specialty details in registry · Charlottesville, VA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
47%Service-mix similarityView profile →

Yinghao Long Riffee, M.D.

Hospitalist (CMS) · Charlottesville, VA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
46%Service-mix similarityView profile →

Ajay Kumar Shah, MD

Hospitalist · Internal Medicine (CMS) · Charlottesville, VA

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)
  • Advance care planning, first 30 minutes (99497)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
45%Service-mix similarityView profile →

Nicholas Peter Lucchesi, MD

Specialty details in registry · Charlottesville, VA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
42%Service-mix similarityView profile →

Tareq Arar, MBBS

Hospitalist · Internal Medicine (CMS) · Charlottesville, VA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
42%Service-mix similarityView profile →

Ellen H Nein, MD

Hospitalist · Internal Medicine (CMS) · Charlottesville, VA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
41%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.