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

DAYTON, OH · Exact areaEdit location

2024 published service data · 132 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Shahzad Akbar, MD

Internal Medicine · Dayton, OH

Shared published services
2 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)
83%Service-mix similarityView profile →

Sylvia Polenakovik, M.D.

Internal Medicine · Dayton, OH

Shared published services
2 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)
67%Service-mix similarityView profile →

Edward Samuel Roberto

Internal Medicine · Dayton, OH

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)
58%Service-mix similarityView profile →

Grace Ogbeche, MD

Internal Medicine · Dayton, OH

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)
58%Service-mix similarityView profile →

Daniel James Manz, M.D.

Internal Medicine · Dayton, OH

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)
58%Service-mix similarityView profile →

Chaturbhai B Patel, MD

Internal Medicine · Dayton, OH

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)
58%Service-mix similarityView profile →

Woo Jong Jang

Internal Medicine · Dayton, OH

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)
58%Service-mix similarityView profile →

Rachel Mantyla Karani, MD

Internal Medicine · Dayton, OH

Shared published services
2 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)
44%Service-mix similarityView profile →

Rebecca D Tobias, MD

Internal Medicine · Dayton, OH

Shared published services
2 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)
43%Service-mix similarityView profile →

Sonu Santhosh, DO

Internal Medicine · Dayton, OH

Shared published services
2 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)
42%Service-mix similarityView profile →

George Fayez Labib Youssief Gad, M.D.

Internal Medicine · Dayton, OH

Shared published services
2 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)
39%Service-mix similarityView profile →

Artur Karimov, MD

Internal Medicine · Dayton, OH

Shared published services
2 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)
37%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.