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Similar work.
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Compare the published Medicare service mix of Aamir Ehsan, MD with clinicians in the same registry specialty: Hematology · Pathology (CMS).

SAN ANTONIO, TX · Exact areaEdit location

2024 published service data · 70 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Bridget Herschap, M.D.

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Flow cytometry technique for dna or cell analysis, each additional marker (88185)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
98%Service-mix similarityView profile →

Alma Judith Sanchez-Salazar, M.D.

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Flow cytometry technique for dna or cell analysis, each additional marker (88185)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
84%Service-mix similarityView profile →

Brenda Ly, M.D.

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Flow cytometry technique for dna or cell analysis, each additional marker (88185)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
82%Service-mix similarityView profile →

August W. Moritz, D.O.

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
  • Microscopic genetic analysis of tissue, manual, each additional multiplex stain procedure (88377)
63%Service-mix similarityView profile →

Alan Frederick Brown, MD

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
  • Microscopic genetic analysis of tissue, manual, each additional multiplex stain procedure (88377)
61%Service-mix similarityView profile →

Faqian Li, MD

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
59%Service-mix similarityView profile →

Jin Zhang, MD

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
59%Service-mix similarityView profile →

Christine Liang, M.D.

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
58%Service-mix similarityView profile →

Lilia P Wojcik, MD

Specialty details in registry · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
  • Microscopic genetic analysis of tissue, manual, each additional multiplex stain procedure (88377)
58%Service-mix similarityView profile →

Brian D Towell, M.D.

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
56%Service-mix similarityView profile →

Jeffrey L. Christal, M.D.

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue including interpretation and report (88313)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
55%Service-mix similarityView profile →

Edward A. Medina, MD

Pathology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Flow cytometry technique for dna or cell analysis, each additional marker (88185)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
55%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.