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Compare the published Medicare service mix of Hernan Alberto Sanchez Trejo, M.D. with clinicians in the same registry specialty: Colorectal Surgery (Proctology) (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.

Jean A. Knapps, M.D.

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

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
79%Service-mix similarityView profile →

Matthew James Crapko, MD

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

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
78%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
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
77%Service-mix similarityView profile →

Thiru Venkat Lakshman, MD

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

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
76%Service-mix similarityView profile →

Matthew L Voth, MD

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

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
76%Service-mix similarityView profile →

Antonio Nathan Villamor, M.D.

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

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
75%Service-mix similarityView profile →

Tal R Raphaeli, MD

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

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
73%Service-mix similarityView profile →

Danielle M Giesler, MD

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

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
70%Service-mix similarityView profile →

Michael A Keller, M.D.

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

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
69%Service-mix similarityView profile →

Jillian Grimm

Colorectal Surgery (Proctology) (CMS) · New Braunfels, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Diagnostic exam of anus using an endoscope (46600)
68%Service-mix similarityView profile →

Ricardo Lerma Solis, MD

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

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Diagnostic exam of anus using an endoscope (46600)
68%Service-mix similarityView profile →

Ali Mahmood, MD

Colorectal Surgery (Proctology) (CMS) · Sugar Land, TX

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Diagnostic exam of anus using an endoscope (46600)
68%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.