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Similar work.
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Compare the published Medicare service mix of Gil Guevarra Magpantay, MD with clinicians in the same registry specialty: Allergy/Immunology (CMS).

CA · Exact areaEdit location

2024 published service data · 201 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Andrew White, M.D.

Allergy/Immunology · Internal Medicine (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using skin patch (95044)
93%Service-mix similarityView profile →

Katharine M. Woessner, M.D.

Allergy/Immunology · Internal Medicine (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using skin patch (95044)
91%Service-mix similarityView profile →

Hannah Hope Walford, MD

Internal Medicine · Pediatric Medicine (CMS) · Menlo Park, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Professional service for multiple injections of allergen (95117)
88%Service-mix similarityView profile →

Kevin Andrew Cook, M.D.

Allergy/Immunology · Internal Medicine (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Test for allergy using skin patch (95044)
  • Professional service for multiple injections of allergen (95117)
88%Service-mix similarityView profile →

Kelli Marie Rose, M.D.

Allergy/Immunology (CMS) · San Luis Obispo, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using skin patch (95044)
88%Service-mix similarityView profile →

Ali Amirzadeh, M.D.

Allergy/Immunology · Internal Medicine (CMS) · Sacramento, CA

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

Jungmee Kim, M.D.

Allergy/Immunology (CMS) · La Mirada, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using skin patch (95044)
87%Service-mix similarityView profile →

Binita Mandal, MD

Allergy/Immunology (CMS) · Carmichael, CA

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

Jenna Thuc-Uyen Nguyen, MD

Allergy/Immunology (CMS) · Menlo Park, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Professional service for multiple injections of allergen (95117)
86%Service-mix similarityView profile →

Matthew Stiles Bowdish, M.D.

Allergy/Immunology (CMS) · Roseville, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Professional service for multiple injections of allergen (95117)
85%Service-mix similarityView profile →

Vinay Chandra Gowda, MD

Allergy/Immunology · Internal Medicine (CMS) · Santa Cruz, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using skin patch (95044)
85%Service-mix similarityView profile →

Toby Levenson, MD

Allergy/Immunology · Internal Medicine (CMS) · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Professional service for multiple injections of allergen (95117)
85%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.