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Compare the published Medicare service mix of Alvin Michael Shih, D.O. with clinicians in the same registry specialty: Internal Medicine.

SAN ANTONIO, TX · Exact areaEdit location

2024 published service data · 340 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Tasnim Islam, D.O

Internal Medicine · San Antonio, TX

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)
88%Service-mix similarityView profile →

Carlos Ramos Saenz

Internal Medicine · San Antonio, TX

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)
88%Service-mix similarityView profile →

Artemio J. Ramirez, DO

Internal Medicine · San Antonio, TX

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)
82%Service-mix similarityView profile →

Dawn T Langeland, MD

Internal Medicine · San Antonio, TX

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)
80%Service-mix similarityView profile →

Anthony Joseph Oliva, MD

Internal Medicine · San Antonio, TX

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)
80%Service-mix similarityView profile →

Eric Fris, MD

Internal Medicine · San Antonio, TX

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)
75%Service-mix similarityView profile →

Dominic Meza, MD

Internal Medicine · San Antonio, TX

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)
75%Service-mix similarityView profile →

Esmeralda Lugo, M.D.

Internal Medicine · San Antonio, TX

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)
75%Service-mix similarityView profile →

Ramil C Jumao-As, MD

Internal Medicine · San Antonio, TX

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)
75%Service-mix similarityView profile →

Jeffry W Sorrell, MD

Internal Medicine · San Antonio, TX

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)
67%Service-mix similarityView profile →

Ravi Santhanam, MD

Internal Medicine · San Antonio, TX

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)
60%Service-mix similarityView profile →

Jose Adolfo Gonzalez Villalba, M.D.

Internal Medicine · San Antonio, TX

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)
  • Initial hospital care with same-day admission and discharge with high level of medical decision making, per day, if using time, at least 85 minutes (99236)
57%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.