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Compare the published Medicare service mix of Chad E Lewis, MD with clinicians in the same registry specialty: Colorectal Surgery (Proctology) · Emergency Medicine · General Surgery (CMS).

TX · Exact areaEdit location

2024 published service data · 154 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Hernan Alberto Sanchez Trejo, M.D.

Colorectal Surgery (Proctology) (CMS) · Laredo, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
64%Service-mix similarityView profile →

Bridget M Sanders, M.D.

General Surgery (CMS) · Corpus Christi, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
62%Service-mix similarityView profile →

Antonio Nathan Villamor, M.D.

Colorectal Surgery (Proctology) (CMS) · Pearland, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
58%Service-mix similarityView profile →

Tianming Liu, M.D.

Colorectal Surgery (Proctology) · General Surgery (CMS) · Houston, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
57%Service-mix similarityView profile →

Matthew L Voth, MD

Colorectal Surgery (Proctology) · General Surgery (CMS) · Humble, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
54%Service-mix similarityView profile →

Tal R Raphaeli, MD

Colorectal Surgery (Proctology) · General Surgery (CMS) · Houston, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
50%Service-mix similarityView profile →

Mohummed Radwan Khani, M.D

Colorectal Surgery (Proctology) (CMS) · Webster, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
43%Service-mix similarityView profile →

Richard Blair Jackson, M.D.

Colorectal Surgery (Proctology) · General Surgery (CMS) · San Antonio, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
43%Service-mix similarityView profile →

Jean A. Knapps, M.D.

Colorectal Surgery (Proctology) (CMS) · Houston, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
39%Service-mix similarityView profile →

Danielle M Giesler, MD

Colorectal Surgery (Proctology) · General Surgery (CMS) · Richardson, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
38%Service-mix similarityView profile →

Joselin Anandam Matthews, MD

Colorectal Surgery (Proctology) · General Surgery (CMS) · Mckinney, TX

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
38%Service-mix similarityView profile →

Clark Michael Kardys, M.D.

Colorectal Surgery (Proctology) · General Surgery (CMS) · San Antonio, TX

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)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
36%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.