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Compare the published Medicare service mix of Joseph Reginald Perez, M.D. with clinicians in the same registry specialty: Allergy/Immunology · Internal Medicine (CMS).

TX · Exact areaEdit location

2024 published service data · 44 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

William F. Long, MD

Allergy/Immunology (CMS) · Temple, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
87%Service-mix similarityView profile →

Dalia Giovanna Galicia, M.D.

Allergy/Immunology · Internal Medicine (CMS) · Fort Worth, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
87%Service-mix similarityView profile →

Mallika Iyer, M.D.

Specialty details in registry · Conroe, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
83%Service-mix similarityView profile →

Moonhee Lee, M.D.

Allergy/Immunology (CMS) · Arlington, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
82%Service-mix similarityView profile →

Swapnil Vaidya, MD, PHD

Allergy/Immunology · Internal Medicine (CMS) · Fort Worth, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
81%Service-mix similarityView profile →

Ningxi Zhu, M.D.

Pediatric Medicine (CMS) · Corpus Christi, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
79%Service-mix similarityView profile →

Steven Larry Cole, D.O.

Allergy/Immunology (CMS) · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
78%Service-mix similarityView profile →

Tran Huyen Thi Ly, MD

Allergy/Immunology (CMS) · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
78%Service-mix similarityView profile →

David Eugene Hrncir, M.D.

Allergy/Immunology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
75%Service-mix similarityView profile →

Sheila Madhavi Amar, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
74%Service-mix similarityView profile →

Patricia Lynette Gomez Dinger, D.O.

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

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
73%Service-mix similarityView profile →

Dennis Dilley, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
  • Professional service for preparation and provision of 1 or more antigens (95165)
72%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.