A DIFFERENT WAY TO EXPLORE

Similar work.
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Compare the published Medicare service mix of Justin Ray Chen, M.D. with clinicians in the same registry specialty: Allergy/Immunology · Internal Medicine (CMS).

TX · Exact areaEdit location

2024 published service data · 195 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Robert M Ramirez, M.D.

Allergy/Immunology · Internal Medicine (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
92%Service-mix similarityView profile →

Ronald Lee Cox, M.D.

Allergy/Immunology (CMS) · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
92%Service-mix similarityView profile →

Daniel Alberto Ramirez, M.D.

Allergy/Immunology · Pediatric Medicine (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
89%Service-mix similarityView profile →

Francis Ford Lachowsky, M.D.

Allergy/Immunology (CMS) · Texarkana, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
88%Service-mix similarityView profile →

Niran Jan Amar, M.D.

Allergy/Immunology · Pediatric Medicine (CMS) · Waco, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
87%Service-mix similarityView profile →

Mark E Mccabe

Allergy/Immunology (CMS) · Tyler, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
86%Service-mix similarityView profile →

Ashley Goodnight Hall, M.D.

Allergy/Immunology · Pediatric Medicine (CMS) · Abilene, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
85%Service-mix similarityView profile →

Douglas Kurt Schreiber, M.D.

Specialty details in registry · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
84%Service-mix similarityView profile →

Sarah Biggs, MD

Allergy/Immunology (CMS) · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
84%Service-mix similarityView profile →

Milan Sljivich, M.D.

Allergy/Immunology (CMS) · Garland, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
83%Service-mix similarityView profile →

Michael Louis Alvares, MD

Allergy/Immunology · Internal Medicine (CMS) · Garland, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
83%Service-mix similarityView profile →

Kris Bhat, M.D.

Allergy/Immunology · Pediatric Medicine · Pulmonary Disease · Sleep Medicine (CMS) · Humble, TX

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for single injection of allergen (95115)
83%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.